Build Custom Calculators
for Your Business
Create branded, embeddable calculators in minutes. Drag-and-drop fields, write custom formulas, apply your brand colors, and share them on any website. No coding required.
Live preview — this is what your custom calculator could look like
Start from a Template
Choose from 5 pre-built templates or start from scratch. Customize every field, formula, and color.
ROI Calculator
4 fields · 3 formulas
Pricing Calculator
4 fields · 4 formulas
Savings Calculator
4 fields · 4 formulas
Commission Calculator
4 fields · 4 formulas
Loan Calculator
4 fields · 4 formulas
Built for Every Industry
Whether you sell software, advise clients, or close real estate deals — a custom calculator converts visitors into customers.
Sales Teams
Build ROI and pricing calculators to close deals faster.
Financial Advisors
Create branded retirement, savings, and investment tools.
Real Estate
Mortgage, rental yield, and property ROI calculators.
SaaS Pricing
Interactive pricing pages that calculate per-seat costs.
Insurance
Premium estimators and coverage comparison tools.
Everything You Need
A complete toolkit for building professional calculators, from field types to analytics.
Drag-and-Drop Fields
Add number, currency, percentage, dropdown, and slider fields with a click.
Custom Formulas
Write expressions that reference your fields. Results update in real-time.
Brand Colors & Logo
Match your company colors, add your logo, and make it yours.
Embed Anywhere
One-click embed code. Drop it on your site, landing page, or blog.
Usage Analytics
Track how many people use your calculator, where they come from, and what they calculate.
Responsive Design
Looks great on desktop, tablet, and mobile. No extra work needed.
Simple Pricing
Business Plan
Calculator Builder + all NexTool features
- Unlimited custom calculators
- All 5 starter templates
- Custom branding & colors
- Embed on unlimited sites
- Unlimited tool uses
- 500 AI analyses per month
- Priority support
Standalone Builder
Calculator Builder only — no other NexTool features
- Unlimited custom calculators
- All 5 starter templates
- Custom branding & colors
- Embed on unlimited sites
- Usage analytics
- Email support
Ready to Build Your First Calculator?
Join thousands of businesses that use custom calculators to convert leads, showcase ROI, and reduce churn.
Start Building — Free Trial