From financial planning and health tracking to math problems and everyday conversions — our powerful, **browser-based calculators** provide instant, accurate results. No downloads, no sign-up, completely free and private.
Calculate monthly payments, total interest, and amortization schedule for home loans.
Calculate Now →Estimate payments for personal, auto, or any fixed-rate loan with flexible terms.
Calculate Now →Plan your car purchase with down payment, trade-in, and interest calculations.
Calculate Now →See how your savings or investments grow over time with compounding.
Calculate Now →Plan your retirement savings with contributions and expected returns.
Calculate Now →Estimate federal income tax based on filing status and deductions.
Calculate Now →Plan how to pay off credit card debt and calculate total interest paid.
Calculate Now →Estimate body fat percentage using the U.S. Navy method with measurements.
Calculate Now →Find your ideal weight range using Devine, Robinson, and Hamwi formulas.
Calculate Now →Estimate pregnancy due date and current week from last menstrual period.
Calculate Now →Advanced calculations with trig, logs, powers, and constants.
Open Calculator →Solve X% of Y, percentage change, and increase/decrease problems.
Calculate Now →Add, subtract, multiply, and divide fractions with simplification.
Calculate Now →Volume, area, surface area, and Pythagorean theorem calculations.
Calculate Now →Generate secure random numbers and calculate GPA from grades.
Open Tool →Calculate exact age in years, months, days, hours, and minutes.
Calculate Now →