Math & Calculators

Free online calculators for everyday math — percentages, BMI, dates and more. Instant results, no signup.

Free online calculator for quick everyday arithmetic — addition, subtraction, multiplication, division and percentages.

Calculate percentages, percentage change and percentage of a number instantly. Free online percentage calculator.

Calculate your Body Mass Index from height and weight in metric or imperial units, with healthy range guidance.

Calculate exact age in years, months and days from a date of birth — plus total days lived and days until the next birthday.

Calculate the exact time between two dates in years, months, weeks and days. Free date duration calculator for deadlines, anniversaries and planning.

Calculate your monthly loan EMI, total interest and total repayment from the loan amount, interest rate and tenure. Free EMI calculator.

Project investment growth with compound interest — set the rate, compounding frequency, duration and optional monthly contributions.

Estimate your daily calorie needs (TDEE) from age, height, weight and activity level — with targets for weight loss, maintenance and gain.