Free Embeddable Calculator Widgets
Add powerful calculators and tools to your website with a single line of code. Fully responsive, fast, and always free.
243 embeddable tools available
Word Counter
Count words, characters, sentences, and paragraphs
Case Converter
Convert text between uppercase, lowercase, title case, and more
Lorem Ipsum Generator
Generate placeholder text for your designs
Markdown Preview
Write and preview Markdown in real-time
Text Diff Checker
Compare two texts and find differences
Fancy Text Generator
Generate stylish Unicode text for social media and bios
Slug Generator
Convert text to URL-friendly slugs
JSON Formatter
Format, validate, and beautify JSON data
Base64 Encoder/Decoder
Encode and decode Base64 strings
Regex Tester
Test and debug regular expressions in real-time
URL Encoder/Decoder
Encode and decode URL strings
Cron Expression Builder
Build and explain cron expressions visually
JWT Decoder
Decode and inspect JSON Web Tokens
HTML Entity Encoder/Decoder
Encode and decode HTML entities
SQL Formatter
Format and beautify SQL queries
Meta Tag Generator
Generate SEO meta tags for your website
Color Converter
Convert colors between HEX, RGB, HSL, and more
Timestamp Converter
Convert between Unix timestamps and dates
YAML/JSON Converter
Convert between YAML and JSON formats
Number Base Converter
Convert between binary, octal, decimal, and hexadecimal
CSS Unit Converter
Convert between px, rem, em, pt, and other CSS units
Password Generator
Generate strong, secure passwords
Hash Generator
Generate MD5, SHA-1, SHA-256, and other hashes
UUID Generator
Generate unique UUIDs and GUIDs
CSS Gradient Generator
Create beautiful CSS gradients visually
QR Code Generator
Generate QR codes for URLs, text, WiFi, and more
Pomodoro Timer
Boost productivity with the Pomodoro Technique timer
Age Calculator
Calculate exact age in years, months, and days
Placeholder Image Generator
Generate placeholder images for design mockups
Markdown to HTML Converter
Convert Markdown to clean HTML code
Text to Binary Converter
Convert text to binary and binary to text
Invoice Generator
Create professional invoices and download as PDF
Emoji Picker
Browse and copy emojis by category with search
JSON to CSV Converter
Convert between JSON and CSV formats
Percentage Calculator
Calculate percentages, increases, decreases, and changes
Text Statistics Analyzer
Analyze text readability, word frequency, and keyword density
BMI Calculator
Calculate your Body Mass Index with visual BMI scale
Loan Calculator
Calculate monthly payments, interest, and amortization schedules
Compound Interest Calculator
Calculate compound interest with contributions and visual growth chart
Tip Calculator
Calculate tips, split bills, and round totals with tipping guide
Unit Converter
Convert between length, weight, temperature, speed, and more
Typing Speed Test
Test your typing speed (WPM) and accuracy with live feedback
Random Number Generator
Generate cryptographically secure random numbers, dice, and coins
Color Palette Generator
Generate beautiful color palettes with harmony rules and export options
Countdown Timer
Multiple countdown timers with progress rings and fullscreen mode
Screen Resolution Checker
Check your screen resolution, viewport size, and device information
Mortgage Calculator
Calculate mortgage payments with taxes, insurance, PMI, and amortization
Currency Converter
Convert between 30+ world currencies with multi-currency comparison
Calorie Calculator
Calculate daily calories (TDEE/BMR) with macro breakdowns for your goals
Salary Calculator
Convert salary between hourly, weekly, monthly, and annual with tax estimates
Discount Calculator
Calculate sale prices, savings, and stack multiple discounts
Date Calculator
Calculate days between dates, add/subtract time, find weekdays, and more
GPA Calculator
Calculate semester and cumulative GPA with course management
Fuel Cost Calculator
Calculate trip fuel costs, annual expenses, and CO2 emissions
Square Footage Calculator
Calculate area for rectangles, circles, triangles, and rooms with cost estimates
Income Tax Calculator
Estimate US federal income tax with brackets, FICA, and take-home pay
Retirement Calculator
Estimate retirement savings, income, and how much to save monthly
Hourly to Salary Calculator
Convert hourly wage to annual salary with tax estimates and overtime
Electricity Cost Calculator
Calculate electricity costs for appliances with daily, monthly, and yearly estimates
Savings Goal Calculator
Calculate how long to reach your savings goal or how much to save monthly
Pregnancy Due Date Calculator
Calculate pregnancy due date, trimester timeline, and development milestones
Grade Calculator
Calculate weighted grades, GPA, and what you need on finals
Paycheck Calculator
Calculate take-home pay with federal tax, FICA, state tax, and deductions
Running Pace Calculator
Calculate running pace, finish time, or distance with split times
ROI Calculator
Calculate return on investment, annualized ROI, and compare investments
Sleep Calculator
Find optimal bedtime or wake time based on 90-minute sleep cycles
Auto Loan Calculator
Calculate monthly car payments, total interest, and amortization
Debt Payoff Calculator
Calculate how long to pay off debt with avalanche or snowball strategies
Body Fat Calculator
Estimate body fat percentage using the US Navy method and BMI formula
Net Worth Calculator
Calculate your total net worth from assets minus liabilities
Inflation Calculator
Calculate how inflation affects purchasing power over time
BAC Calculator
Estimate blood alcohol content based on drinks, weight, and time
Time Zone Converter
Convert time between world time zones with meeting planner
Cooking Converter
Convert between cooking measurements with ingredient-specific densities
Hex Color Picker
Pick colors with HEX, RGB, HSL output and WCAG contrast checker
Scientific Calculator
Full-featured scientific calculator with trig, log, and memory functions
Investment Calculator
Calculate investment growth with monthly contributions and dividends
Tax Bracket Calculator
See which tax brackets your income falls into with effective rate
Water Intake Calculator
Calculate your recommended daily water intake based on weight and activity
Due Date Calculator
Calculate pregnancy due date or project deadline with timeline
Rent Affordability Calculator
Determine how much rent you can afford based on income
Macro Calculator
Calculate daily protein, carbs, and fat needs for your fitness goal
Social Media Character Counter
Check character limits for Twitter, Instagram, LinkedIn, and more
CAGR Calculator
Calculate compound annual growth rate for investments
Profit Margin Calculator
Calculate gross and net profit margins with markup comparison
Ideal Weight Calculator
Calculate ideal body weight using Devine, Robinson, Miller, and Hamwi formulas
Wedding Budget Calculator
Plan your wedding budget with category allocations, per-guest costs, and expense tracking
Dog Age Calculator
Convert your dog's age to human years using the latest veterinary science formulas
Screen Time Calculator
Calculate your daily screen time across devices and see the impact on your health and productivity
Car Affordability Calculator
Find out how much car you can afford based on your income, expenses, and credit score
Student Loan Calculator
Calculate student loan payments with Standard, Graduated, and Income-Driven repayment plans
Carbon Footprint Calculator
Calculate your annual carbon footprint from transportation, home energy, diet, and consumption
Moving Cost Calculator
Estimate your moving costs with DIY, hybrid, and full-service comparisons plus a moving checklist
Party Food Calculator
Calculate exactly how much food and drinks you need for your party based on guests and duration
Stock Return Calculator
Calculate stock investment returns including dividends, capital gains, and after-tax performance
Home Affordability Calculator
Calculate how much house you can afford based on income, debts, and down payment using the 28/36 rule
Business Loan Calculator
Calculate business loan payments for Term Loans, SBA 7(a), Lines of Credit, and Equipment Financing
401(k) Calculator
Project your 401(k) retirement savings with employer matching, catch-up contributions, and growth analysis
Protein Calculator
Calculate your optimal daily protein intake based on weight, activity level, and fitness goals
Rent vs Buy Calculator
Compare the financial impact of renting vs buying a home over time with net worth projections
Heart Rate Zone Calculator
Calculate your target heart rate zones for optimal training using the Karvonen formula
Tax Withholding Calculator
Calculate federal tax withholding per paycheck and estimate your refund or amount owed
EMI Calculator
Calculate Equated Monthly Installments for any loan with amortization schedule and prepayment analysis
Payroll Tax Calculator
Calculate federal, state, Social Security, and Medicare taxes with detailed net pay breakdown
Reading Speed Calculator
Test and track your reading speed in words per minute with comparison benchmarks and book time estimates
Savings Interest Calculator
Calculate savings account growth with compound interest, APY comparison, and inflation-adjusted projections
Property Tax Calculator
Calculate property taxes with exemptions and multi-year projections
Sales Tax Calculator
Calculate sales tax for any US state with multi-item and reverse modes
DCA Calculator
Calculate dollar-cost averaging returns with DCA vs lump sum comparison
One Rep Max Calculator
Calculate your one-rep max using 7 proven strength formulas
Shipping Cost Estimator
Compare shipping rates across USPS, UPS, and FedEx with dimensional weight
Credit Score Simulator
Simulate how financial actions like paying debt or opening accounts affect your credit score
Amortization Calculator
Generate detailed loan amortization schedules showing principal, interest, and balance for each payment
Debt-to-Income Calculator
Calculate your debt-to-income ratio to understand your borrowing capacity and financial health
Down Payment Calculator
Calculate how much to save for a down payment and see how it affects your mortgage payments and PMI
APR Calculator
Calculate the true Annual Percentage Rate including fees, points, and closing costs for any loan
Break-Even Calculator
Calculate the break-even point for your business showing units needed and revenue required to cover costs
Social Security Calculator
Estimate your Social Security retirement benefits based on earnings history and claiming age
CD Calculator
Calculate Certificate of Deposit returns with compound interest and compare CD laddering strategies
Crypto Profit Calculator
Calculate cryptocurrency investment returns, profits, and ROI including fees and tax estimates
TDEE Calculator
Calculate your Total Daily Energy Expenditure based on BMR, activity level, and body composition
Blood Pressure Calculator
Track and categorize blood pressure readings with averages, trends, and health risk indicators
Ovulation Calculator
Track your fertile window and ovulation date based on your menstrual cycle for family planning
Pregnancy Weight Gain Calculator
Track recommended pregnancy weight gain by trimester based on pre-pregnancy BMI guidelines
Waist-to-Hip Ratio Calculator
Calculate your waist-to-hip ratio and assess your health risk level for cardiovascular disease
Aspect Ratio Calculator
Calculate and convert aspect ratios for images, videos, and screens with common preset sizes
Fraction Calculator
Add, subtract, multiply, and divide fractions with step-by-step solutions and simplification
Matrix Calculator
Perform matrix operations including addition, multiplication, determinant, inverse, and transpose
Image Resizer
Resize images in your browser with custom dimensions, aspect ratio lock, and quality settings
Binary Calculator
Perform binary arithmetic operations and convert between binary, decimal, octal, and hexadecimal
Net Income Calculator
Calculate your net income after federal, state, and local taxes with detailed deduction breakdown
Margin Calculator
Calculate profit margin, markup, and selling price with batch analysis and industry benchmarks
Payoff Calculator
Calculate how fast you can pay off debt with extra payments and see total interest savings
Baby Name Generator
Discover baby names with meanings, popularity rankings, and name combinations by origin and gender
Conversion Rate Calculator
Calculate website conversion rates, run A/B test analysis, and project revenue growth
Electricity Usage Calculator
Calculate electricity costs by appliance with presets for 38 common devices and energy saving tips
Stock Screener
Screen 50 stocks by fundamentals, track your portfolio, and learn investment strategies
Lease Calculator
Calculate car and equipment lease payments with lease vs buy comparison
Tip Split Calculator
Calculate tips and split bills between groups with rounding and tax options
Paint Calculator
Calculate paint needed for rooms with coverage estimates and cost breakdown
Concrete Calculator
Calculate concrete volume in cubic yards for slabs, columns, and walls with bag estimates
Fence Calculator
Calculate fence materials and costs for privacy, picket, split rail, and chain link fences
Tile Calculator
Calculate tiles needed for floors and walls with waste factor and pattern adjustments
Mulch Calculator
Calculate mulch needed in cubic yards and bags with bulk vs bag cost comparison
Soil Calculator
Calculate soil volume for garden beds and raised beds with mix recommendations
Wedding Guest Calculator
Track wedding RSVPs, meal selections, table assignments, and per-guest budget
Pool Volume Calculator
Calculate pool water volume in gallons for chemical dosing, fill time, and cost estimates
Lawn Care Calculator
Calculate fertilizer, seed, and water needs for your lawn based on size and grass type
Firewood Calculator
Calculate cords of firewood needed for winter heating with BTU estimates and cost comparison
Wallpaper Calculator
Calculate wallpaper rolls needed with pattern repeat waste and cost estimates
Deck Cost Calculator
Estimate deck building costs with materials, features, and labor breakdown
Moving Budget Calculator
Calculate moving costs with professional vs DIY comparison and supply estimates
Pet Food Calculator
Calculate daily pet food portions for dogs and cats based on weight, age, and activity
Rain Barrel Calculator
Calculate rainwater collection potential from roof area with savings and garden coverage
Gravel Calculator
Calculate gravel needed in tons and cubic yards for driveways, paths, and landscaping
Stair Calculator
Calculate stair dimensions per building code with riser height, tread depth, and stringer length
Brick Calculator
Calculate bricks needed for walls, patios, and columns with mortar and cost estimates
Insulation Calculator
Calculate insulation needs by R-value with material comparison and energy savings estimates
Gutter Calculator
Calculate gutter materials, downspouts, and accessories with cost estimates by material
Drywall Calculator
Calculate drywall sheets, joint compound, tape, and screws needed for walls and ceilings
Flooring Calculator
Calculate flooring materials for hardwood, laminate, tile, vinyl, and carpet with cost estimates
Window Cost Calculator
Estimate window replacement costs by type, frame material, glass, and size
HVAC Calculator
Calculate HVAC system sizing (BTU/tonnage) and cost by climate zone and home size
Solar Panel Calculator
Estimate solar panel system size, cost, savings, and payback period for your home
Water Heater Calculator
Calculate water heater sizing and compare 6 types by operating cost and 10-year ownership cost
Fence Paint Calculator
Calculate paint and stain needed for fences with coverage rates and cost estimates
Roof Calculator
Calculate roofing materials, squares, and cost by material type and roof pitch
Siding Calculator
Calculate siding materials for house exterior with 6 material options and cost comparison
Carpet Calculator
Calculate carpet for multiple rooms with roll width optimization and padding costs
Kitchen Remodel Calculator
Estimate kitchen renovation costs with scope selection and ROI analysis
Bathroom Remodel Calculator
Estimate bathroom renovation costs by size, scope, and remodel level with ROI analysis
Tire Size Calculator
Compare tire sizes with diameter difference, speedometer error, and clearance changes
Gas Mileage Calculator
Calculate fuel costs, MPG, and annual gas expenses with EV cost comparison
College Savings Calculator
Calculate 529 plan savings needed for college with growth projections and gap analysis
Home Equity Calculator
Calculate home equity, HELOC borrowing power, and loan payment estimates
Asphalt Calculator
Calculate asphalt tonnage and cost for driveways and parking lots
Pool Chemical Calculator
Calculate pool chemical dosages for chlorine, pH, alkalinity, and CYA adjustments
Land Clearing Calculator
Estimate land clearing costs by acreage, terrain type, and vegetation density.
Concrete Slab Calculator
Calculate concrete volume, bags needed, and project cost for slabs and pads.
Home Insurance Calculator
Estimate annual homeowners insurance premium based on home value and coverage.
Paint Room Calculator
Calculate how much paint you need for a room including walls, ceiling, and supplies.
Electric Car Savings Calculator
Compare EV vs gas car fuel costs and see annual savings with CO2 reduction.
RV Loan Calculator
Calculate monthly RV loan payments with term comparison and total interest.
Boat Loan Calculator
Calculate boat loan payments and total ownership costs including insurance and storage.
Fence Cost Calculator
Estimate fence installation cost by type, length, height, and number of gates.
Lawn Mowing Calculator
Calculate lawn mowing time and cost with DIY vs professional comparison.
Appliance Energy Calculator
Calculate energy costs for household appliances with daily, monthly, and annual estimates.
Credit Card Payoff Calculator
Calculate how long to pay off credit card debt and how much interest you'll pay
Stamp Duty Calculator
Calculate real estate transfer taxes, title insurance, and closing costs by state
Hashtag Generator
Generate relevant hashtags for Instagram, TikTok, and Twitter to boost engagement
Business Name Generator
Generate creative business names with availability checks and tagline suggestions
CSS Gradient Generator
Create beautiful CSS gradients with a visual editor — linear, radial, and conic
Password Strength Checker
Analyze password security with entropy calculation, crack time estimation, and detailed checks
Cron Expression Generator
Build and test cron expressions visually with human-readable descriptions and next run times
Privacy Policy Generator
Generate a customizable privacy policy with GDPR and CCPA compliance options
SSL Certificate Checker
Check if a website has a valid SSL certificate and review security header recommendations
Health Insurance Calculator
Compare health insurance plan costs and find the best option
Car Insurance Calculator
Estimate car insurance premiums by driver profile and coverage
Renters Insurance Calculator
Calculate renters insurance coverage needs and monthly cost
Alimony Calculator
Estimate spousal support payments and duration
Divorce Settlement Calculator
Calculate fair asset division in a divorce
Personal Injury Calculator
Estimate personal injury settlement value
Cap Rate Calculator
Calculate capitalization rate for real estate investments
Rental Yield Calculator
Calculate gross and net rental yield on investment property
House Flip Calculator
Calculate profit and ROI on a house flip project
Airbnb Calculator
Estimate Airbnb rental income and profitability
Debt Consolidation Calculator
Compare current debts vs a consolidation loan
Balance Transfer Calculator
Calculate savings from a credit card balance transfer
HELOC Calculator
Calculate home equity line of credit payments and limits
Personal Loan Calculator
Calculate personal loan payments and total interest
Capital Gains Calculator
Calculate capital gains tax on investments and property
Self-Employment Tax Calculator
Calculate self-employment tax and quarterly estimated payments
Estate Tax Calculator
Estimate federal and state estate tax on an inheritance
Crypto Tax Calculator
Calculate cryptocurrency taxes on trades and transactions
Freelance Rate Calculator
Calculate your ideal freelance hourly and project rates
SaaS Metrics Calculator
Calculate key SaaS business metrics: MRR, ARR, LTV, CAC
Annuity Calculator
Calculate annuity growth and payout projections for accumulation and distribution phases
Child Support Calculator
Estimate child support payments using income shares and percentage of income models
Closing Cost Calculator
Estimate home closing costs by state including lender fees, title insurance, and prepaid items
Keto Calculator
Calculate personalized keto macros for fat, protein, and net carbs based on your goals and activity level
Life Insurance Calculator
Calculate life insurance coverage needs based on income, debts, dependents, and existing assets
Refinance Calculator
Compare current vs refinanced mortgage payments, total savings, and break-even point for closing costs
Startup Cost Calculator
Estimate startup costs by business type with categorized expenses, runway planning, and funding gap analysis
FIRE Calculator
Calculate your Financial Independence, Retire Early (FIRE) number with Lean, Regular, and Fat FIRE variants, savings projections, and milestone timeline
LLC vs S-Corp Calculator
Compare LLC vs S-Corp tax savings with side-by-side analysis, self-employment tax breakdown, and optimal salary sensitivity chart
Amazon FBA Calculator
Calculate Amazon FBA fees, profit margins, and ROI across 15 product categories with size tier breakdowns and price sensitivity analysis
Quarterly Tax Calculator
Calculate quarterly estimated tax payments with federal + state taxes, safe harbor rules, and payment deadlines for all 50 US states
Cost of Living Calculator
Compare cost of living between 50+ US cities across housing, food, transportation, healthcare, and utilities with salary adjustment recommendations
AI Token Calculator
Calculate AI API costs across 16+ models (GPT-4o, Claude, Gemini, Llama) with token estimation, batch pricing, and monthly budget projections
Etsy Fee Calculator
Calculate Etsy seller fees including listing, transaction, payment processing, and offsite ad fees with profit margin analysis
Roth IRA Conversion Calculator
Analyze Roth IRA conversion strategies with break-even year calculation, tax impact analysis, and optimal conversion amount recommendations
Workers Comp Calculator
Estimate workers compensation insurance premiums by state with industry classification codes, experience modification rates, and coverage analysis
Calories Burned Calculator
Calculate calories burned across 95+ activities organized in 9 categories using MET values, with heart rate zone estimation and weekly planning
Dividend Calculator
Calculate dividend income with DRIP reinvestment, yield on cost tracking, dividend growth projections, and compound growth visualization
Shopify Profit Calculator
Calculate Shopify store profitability across 4 plan tiers with payment processing fees, shipping costs, and break-even analysis
Disability Benefits Calculator
Estimate SSDI (Social Security Disability Insurance) benefits using PIA formula with 2024 bend points, work credit eligibility, and family benefits
eBay Fee Calculator
Calculate eBay seller fees across 14 categories and 5 store tiers including insertion, final value, promoted listings, and international fees
Stock Options Calculator
Calculate stock option values for ISO, NSO, and RSU grants with AMT exposure analysis, vesting timeline, and exercise strategy comparison
A1C Calculator
Convert between A1C and average blood sugar levels with color-coded diabetes risk ranges, reference charts, and bidirectional conversion
Intermittent Fasting Calculator
Plan your intermittent fasting schedule with 6 protocols (16:8, 18:6, 20:4, OMAD, 5:2, ADF), eating window visualization, and macro targets
Crypto Mining Calculator
Calculate cryptocurrency mining profitability for 5 coins (BTC, ETH, LTC, DOGE, XMR) with electricity costs, ROI timeline, and break-even analysis
Business Valuation Calculator
Estimate business value using 3 methods: Revenue Multiple, EBITDA Multiple, and Discounted Cash Flow (DCF) with industry-specific multipliers
IVF Cost Calculator
Estimate IVF treatment costs across 4 US regions with component breakdowns, multi-cycle projections, and insurance coverage analysis