Practical tools for every day

Free online calculators, converters, generators and random pickers, with quick answers and the numbers done right. Nothing to install, nothing to sign up for.

Dates

Age Calculator
Find your exact age in years, months and days, and how long until your next birthday.
Date Difference
Count the days, weeks and months between any two dates.
Days Until
How many days are left until a holiday, a deadline or any future date.
Business Days
Count business days between dates, or find when a deadline in working days lands.
Time Zone Converter
What time is it there, and what time will your meeting be for them.
Week Number
Which week of the year a date falls in, and the week it belongs to.
Day of the Year
The sequential day number, how many remain, and how much of the year has passed.
Countdown Timer
A live countdown to any date: days, hours, minutes and seconds, ticking.
Time Calculator
Add hours and minutes, or find the time between two clock times.
Hours Between Two Times
How long from clock-in to clock-out, with the break taken off (night shifts included).
Add and Subtract Time
Add up durations in hours and minutes: the sum an ordinary calculator gets wrong.
What Time Will It Be
The time a set number of hours or minutes from now, past midnight if it goes there.

Astronomy

Health

Finance

Numbers

Random

Converters