Every tool you need,
in your browser.

Age calculator

Calculate your exact age in years, months, and days — plus total days lived, total hours, and days until your next birthday.

BMI calculator

Calculate your body mass index from height and weight. Mix any units — kg with inches, lb with cm. Supports WHO, South Asian, and East Asian threshold sets.

Length converter

Convert between 14 length units instantly — centimeters, inches, meters, feet, kilometers, miles, and more. Edit either side and the other updates in real time.

Marks percentage calculator

Calculate your exam percentage and grade under CBSE, ICSE, state board, or university scales. Built for students in India. Enter total marks or add subjects individually.

Percentage calculator

Calculate percentages six ways — find a percent of a number, what percent one number is of another, percent increase, percent decrease, and percent change. Sentence-style interface, instant results.

Word counter

Count words, characters, sentences, and paragraphs instantly. See estimated reading time. Works for any language, including full-width CJK text.