20-Minute Circuit Training Timer
Twenty stations is the length a small group can run without a queue: five movements, four laps, and the fifteen-second gap is the walk between them.
Worksec
45
Restsec
15
Rounds
20
Total 19:45
45 seconds on · 15 seconds off · 20 rounds · 19:45 of work and rest
What this timer runs
- Work
- 45 seconds
- Rest
- 15 seconds
- Rounds
- 20
- Work and rest
- 19:45
- Countdown
- 10 seconds before the first round
Every field above is editable — this is the free web timer, opened on one setting rather than an empty one. For what a circuit is and how to run it, Circuit Training Timer is the page above this one.
Questions
- How many rounds is a 20-minute Circuit Training session?
- 20, at 45 seconds of work and 15 of rest. That comes to 19:45 of work and rest; the ten-second countdown before the first round is what makes it 20 minutes on the wall clock.
- Can I change the intervals?
- Yes. The dial opens on this setting and every field is editable — change the work, the rest or the round count and the total updates as you type. Nothing is saved, and there is nothing to sign up for.
- Does it keep running if my screen locks?
- In the browser, not reliably — a phone that locks will stop the tab. That is what the iOS app is for: it keeps the clock and the spoken cues running in the background, and on the Apple Watch it taps your wrist at every switch.
Other lengths
Take it beyond the browser
Zestimer for iPhone and Apple Watch calls every switch with voice and haptics, turns YouTube workouts into timed sessions, and keeps your streak. Free on the App Store.
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