Everyday tools
Dates, tips, health and quick numbers.
The small calculations that come up in ordinary weeks: what date falls 90 days from now, a fair tip on a split bill, what time a 9 AM call in Los Angeles is in London, how many kilograms are in a suitcase allowance. None are difficult, but doing them in your head under time pressure is how deadlines get missed and bills get split badly.
Everything here answers in one step, works on a phone, and states its rules plainly: business days skip weekends, daylight saving is applied for the exact date you pick, and BMI categories follow the World Health Organization cut-offs. Nothing you type is sent anywhere.
Find the date a number of days, business days, weeks or months from today or any date, or count the days between two dates.
Calculate your exact age in years, months and days, plus total days lived, the weekday you were born on, and days until your next birthday.
Calculate the tip and total for any bill, split it between any number of people, and round up to a clean total.
Calculate your body mass index in US or metric units, see your weight category, and find the healthy weight range for your height.
Convert length, weight, volume, temperature, area, speed and data units instantly — cm to inches, kg to lbs, ml to oz, °C to °F and more.
Convert any time between time zones — PST to EST, UTC to IST, GMT to AEST and more — with daylight saving handled automatically and an hour-by-hour table.