Calc & Convert Studio · 26 tools

Everyday Tools

27 free everyday tools: age and date calculators, countdowns, stopwatch, Pomodoro timer, world clock and a typing speed test.

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About Everyday Tools

Everyday Tools collects 27 small helpers for dates and time. The Age Calculator gives an exact age in years, months and days for any as-of date, Date Difference counts the days between two dates, and other tools add or subtract days, count business days or find the day of the week for any date. There is a stopwatch, a countdown timer, a Pomodoro Timer for focused work and a world clock for planning calls across time zones.

Date maths here avoids a common bug. Many websites calculate with the device clock, so a daylight-saving change or a different time zone can shift an answer by a day. These tools count days with integer calendar arithmetic, and every tool that depends on today lets you set the date yourself. For something lighter, the Typing Speed Test measures words per minute and accuracy, and there are tools for moon phases, Easter dates and ISO week numbers.

Frequently asked questions

How does the age calculator handle a 31st birthday month?
When a month is shorter, the date is clamped to that month's last day, so adding one month to 31 January gives 28 or 29 February. The rule is applied the same way every time.
Do the timers keep running if I switch tabs?
They measure time from the system clock rather than counting ticks, so the time stays correct. Browsers slow down background tabs, so keep the tab visible if the alarm must sound on time.
Does the business days counter know public holidays?
It skips Saturdays and Sundays, and you can list public holidays to exclude, since they differ by country and region.

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