About the hiit timer
High-Intensity Interval Training maximizes calorie burn and improves cardiovascular fitness. Alternate between high-intensity work and recovery periods. HIIT continues burning calories hours after your workout through excess post-exercise oxygen consumption (EPOC).
How to use the hiit 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
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.