About the tabata timer
The original Tabata protocol: 8 rounds of 20 seconds maximum effort followed by 10 seconds rest. Developed by Dr. Izumi Tabata, this 4-minute workout has been proven to improve both aerobic and anaerobic capacity. Give 100% effort during work periods for best results.
How to use the tabata timer
- Pick a preset or adjust the settings under the timer (they are remembered on this device).
- Press Start. The phase name, round and a coloured ring show where you are.
- Listen for the cue at each change and the 3-2-1 beeps before it.
- Press Next to skip a phase, Pause to take a breather, or Reset to start over.
Keyboard shortcuts
- Space start / pause
- R reset
- F full screen
- M mute
Frequently asked questions
How long is a Tabata workout?
One Tabata is 4 minutes: 8 rounds of 20 seconds all-out effort and 10 seconds rest. Many workouts stack 4–6 Tabatas with a minute of rest between them.
Can I change the work and rest times?
Yes. Edit Work, Rest and Rounds under the timer. Your settings are remembered on this device.
Is it free, and do I need an app?
It is completely free with no sign-up or download. It works in any modern browser on phones, tablets and computers.