CalculatorBuddy

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68 calculators · always free

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68 friendly calculators for finance, health, math, and everyday life — accurate results with the formulas explained. No account needed.

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Mortgage CalculatorEstimate your full monthly mortgage payment — principal, interest, property tax, home insurance, PMI, HOA, and other costs — plus total interest, total cost, and the amortization schedule.Financial
BMI CalculatorCalculate your Body Mass Index (BMI) from your height and weight, see your weight category, and find your healthy weight range — in US or metric units.Health
➗Percentage CalculatorFind a percentage of a number, what percent one number is of another, percentage change, or increase and decrease a value by a percent.Math
Age CalculatorCalculate age or the interval between two dates in years, months, and days — and as total months, weeks, days, hours, minutes, and seconds.Everyday
Loan CalculatorCalculate loan payments three ways: an amortized loan's periodic payment and total interest, a deferred loan's lump sum due at maturity, or a bond's present value — with adjustable compounding.Financial
Calorie CalculatorEstimate the daily calories you need to maintain, lose, or gain weight using Mifflin-St Jeor, Harris-Benedict, or Katch-McArdle and your activity level.Health

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Every tool on CalculatorBuddy, grouped by category.

Financial Calculators

30 calculators

Fitness & Health Calculators

15 calculators

Math Calculators

8 calculators

Other Calculators

15 calculators