Calculator Tools

Calculate your Body Mass Index (BMI) using metric or imperial measurements with health category classification.

Calculate exact age in years, months, days, hours, and minutes from a date of birth.

Calculate percentages, percentage change, percentage of a number, and reverse percentage calculations.

Calculate the difference between two dates in days, weeks, months, and years.

Calculate tip amounts and split bills evenly among any number of people.

Calculate monthly loan payments (EMI) with interest breakdowns and visual charts.

A full-featured scientific calculator with trigonometry (sin, cos, tan), logarithms, square root, powers, π, and e — all in your browser.

Boost productivity with the Pomodoro Technique. Customizable 25/5/15-minute work and break cycles with browser notifications and session tracking.