HIIT timer
Lead structured HIIT workouts with custom work, rest, rounds, and audible cues.
Workout name (optional)
Warmup
seconds before the first work round
Quick add rounds
Example: 15 / 5 × 4 rounds
Rounds
Each round has its own work and rest time in seconds - for example 15/5, then 45/10.
Current phase
Not started
Set your intervals and start the timer to begin.
Time remaining
00:00
Total rounds
—
Completed rounds
—
Workout summary
Configure warmup and custom rounds. When you start, this summary will describe the full workout so you can cue it easily for your group.
This HIIT timer is for general fitness use and does not provide medical advice. Adjust intensity based on participants and ensure everyone is cleared for exercise.