Everyday calculators

5 calculators

Everyday calculators cover small planning tasks such as countdowns and session timers using straightforward arithmetic.

They are convenience tools. Calendar and timezone behavior follows only what How it works states. Everyday helpers are free, with no sign-up.

Printable Everyday formula sheet →

Timers calculators

Pomodoro, countdown, and sleep duration.

Event Countdown Calculator

Day difference between two day-numbers (e.g. ordinal dates).
Pomodoro Planner Calculator

Total session time from Pomodoro counts and break lengths.
Sleep Duration Calculator

Hours slept from bedtime and wake time.

Daily tracking calculators

Water intake and step distance.