How is this different from an interval timer?

Technically nothing: a workout timer is an interval timer with a work-rest ratio that suits circuits. For fixed protocols there are separate Tabata and HIIT pages.

Not in the browser, but the NanoTimer app has warm-up and cooldown, plus named sequences that speak your station names out loud.

Does the time stay correct when my screen goes off?

In the browser the tab must stay open for the sound. In the app the timer keeps running on a locked screen, with voice cues.

Workout timer

A free workout timer for circuits and stations. 45 seconds work and 15 seconds rest over 10 rounds by default, fully adjustable to your plan.

Work (s)Rest (s)Rounds

Work 45s · Rest 15s · 10 rounds

Take it with you in the app

This tool runs in your browser. Want it on your phone, with voice cues, background timing and a real alarm? Open the same tool in NanoTimer.

Open on your phoneOpens NanoTimer on your iPhone and starts right away.

Download on theApp StoreLink coming soon

How it works

Set your work time, rest time and the number of stations or rounds.
Tap Start and work the circuit. Orange is work, teal is rest.
Each phase counts in the last three seconds with a beep.
Pause between blocks, or reset for a new round.

Frequently asked questions

How is this different from an interval timer?: Technically nothing: a workout timer is an interval timer with a work-rest ratio that suits circuits. For fixed protocols there are separate Tabata and HIIT pages.
Can I add a warm-up?: Not in the browser, but the NanoTimer app has warm-up and cooldown, plus named sequences that speak your station names out loud.
Does the time stay correct when my screen goes off?: In the browser the tab must stay open for the sound. In the app the timer keeps running on a locked screen, with voice cues.

More tools

Interval timer Tabata timer HIIT timer EMOM timer AMRAP timer Gym timer CrossFit timer WOD timer