Everyday Calculators

Age, percentage, dates and health — quick answers to daily questions.

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

Three percentage tools in one: X% of Y, X as a percentage of Y, and percentage change.

Count the exact days, weeks, months and years between any two dates — order doesn't matter.

Check your Body Mass Index in metric or imperial units, with the standard WHO category.

Spell out any whole number as words, in both the Indian (lakh/crore) and international (million/billion) systems.

Work out how much fuel a trip needs and what it will cost, from distance, mileage and fuel price.

Estimate your daily calorie needs — BMR and maintenance calories — using the Mifflin-St Jeor equation and your activity level.

Convert height between centimetres and feet/inches instantly, both ways.