💰 Finance Calculators
Calculate mortgage payments, loan amortization, compound interest, retirement savings, US income tax, sales tax, VAT, ROI, commission, inflation, and tip splitting. All free with no sign-up required.
Fast, accurate, and free — for finance, health, math, and everyday life.
Calculate mortgage payments, loan amortization, compound interest, retirement savings, US income tax, sales tax, VAT, ROI, commission, inflation, and tip splitting. All free with no sign-up required.
Calculate BMI (body mass index), daily calorie needs (TDEE), body fat percentage using the Navy method, basal metabolic rate (BMR), ideal body weight, optimal sleep times, and daily water intake.
Full scientific calculator with trig and logarithm functions, percentage calculator (3 modes), fraction arithmetic, average (mean, median, mode, range), random number generator, and area of 6 geometric shapes.
Calculate your exact age from date of birth, days between two dates, GPA from letter grades and credits, weighted final grades, hours worked with pay, and concrete bags needed for construction projects.
Convert length, weight, temperature, volume, speed, area, data storage, pressure, and energy. Plus live currency exchange rates for 32 currencies and cooking unit conversions for kitchen measurements.
Live exchange rates for USD, EUR, GBP, JPY, CAD, AUD, CHF, CNY, INR, MXN, BRL, KRW, NGN, KES, GHS and 18 more currencies. Rates fetched automatically from open exchange rate API.
Use the formula M = P[r(1+r)^n]/[(1+r)^n-1], where P is the loan principal, r is the monthly interest rate, and n is the number of payments. Our mortgage calculator also shows a full 12-month amortization table.
BMI = weight (kg) ÷ height² (m). For example, 70 kg ÷ (1.75m)² = 22.9. A BMI between 18.5 and 24.9 is considered a healthy weight. Our calculator supports both metric and imperial units.
Multiply the Celsius value by 9/5 (or 1.8) then add 32. Example: 100°C × 1.8 + 32 = 212°F. To go the other way, subtract 32 then multiply by 5/9.
A = P(1 + r/n)^(nt), where P is principal, r is the annual rate, n is compounding frequency, and t is time in years. With monthly contributions, the future value is even higher — our calculator accounts for both.
Your TDEE (Total Daily Energy Expenditure) depends on age, gender, weight, height, and activity level. We use the Mifflin-St Jeor equation for BMR, then multiply by an activity factor from 1.2 (sedentary) to 1.9 (very active).
ROI = (Final Value − Initial Investment) ÷ Initial Investment × 100. For example: invested $10,000, grew to $14,500 → ROI = 45%. Our calculator also shows annualized ROI for multi-year investments.
GPA = sum of (grade points × credit hours) ÷ total credit hours. Grade points: A=4.0, B=3.0, C=2.0, D=1.0, F=0. Our GPA calculator lets you enter multiple courses with different credit weights.
Yes — all 37+ calculators on MostCalculators are completely free. No sign-up, no subscription, no hidden fees. All calculations happen instantly in your browser and work offline once loaded.