NexTool Blog
Expert guides on personal finance, health metrics, and productivity. Each article includes a free calculator.
How to Calculate Mortgage Payments: Complete Guide
Learn how to calculate your monthly mortgage payment with the amortization formula. Includes examples, tips for getting lower rates, and a free calculator.
How to Calculate BMI: Formula, Chart & What It Means
Learn how to calculate your Body Mass Index (BMI) with the simple formula. Understand what your BMI means, its limitations, and when to use other health metrics.
Compound Interest Explained: How Your Money Grows Exponentially
Understand compound interest and how it makes your money grow exponentially. Learn the formula, see real examples, and discover strategies to maximize compound growth.
How to Pay Off Debt Fast: Snowball vs Avalanche Method
Learn the two proven strategies to pay off debt fast. Compare the debt snowball and debt avalanche methods with real examples and find which approach works best for you.
How to Calculate Calories for Weight Loss: TDEE Guide
Learn how to calculate your Total Daily Energy Expenditure (TDEE) and create a calorie deficit for healthy weight loss. Includes formulas, activity multipliers, and a free calculator.
How to Calculate Net Worth: Assets, Liabilities & Benchmarks
Learn how to calculate your net worth step by step. Discover what to include as assets and liabilities, and see how your net worth compares to others your age.
How to Calculate Body Fat Percentage: Methods Compared
Learn 5 different methods to calculate body fat percentage, from the free US Navy method to DEXA scans. Understand what your body fat percentage means for health.
How Much Should I Save for Retirement? Complete Guide by Age
Learn how much you should have saved for retirement at every age. Covers the 4% rule, 401k strategies, catch-up contributions, and when you can actually retire.