About the 90 second rest timer
The optimal rest period between strength training sets. 60-90 seconds for hypertrophy (muscle growth), 90-180 seconds for strength, 3-5 minutes for power/max lifts. Consistent rest periods ensure proper recovery and maintain workout intensity.
Recommended times
| 30 s | 30 seconds |
|---|---|
| 60 s | 1 minute |
| 90 s | 1 minute 30 seconds |
| 2 min | 2 minutes |
| 3 min | 3 minutes |
How to use the 90 second rest timer
- Choose a preset, or tap Edit time to type any hours, minutes and seconds.
- Press Start Timer (or the space bar). The finish time appears under the digits.
- Press Full screen to fill the screen — handy for classrooms, meetings and kitchens.
- When it reaches zero an alarm plays until you press Stop Alarm.
Keyboard shortcuts
- Space start / pause
- R reset
- F full screen
- M mute
Frequently asked questions
What presets does the 90 second rest timer have?
30 s (30 seconds), 60 s (1 minute), 90 s (1 minute 30 seconds), 2 min (2 minutes), 3 min (3 minutes). Tap Edit time to set any other length.
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.