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TimerHub

Workout Timer

Free online workout timer for exercise blocks, circuits, stretching, and cooldowns.

Use this timer for a full workout block, stretching session, or cooldown. For work/rest rounds, open the interval timer from the related links.

exercise timergym timerfitness timerworkout countdown timer
30:00
Alarm on

Space start/pause · R reset · +− adjust

Floating Picture-in-Picture needs a Chromium browser; this one doesn't support it.

Background sound

Off

Quick Timers

1m90s3m5m10m15m30m45m1h4h

More ways to run this timer

Run it with rain, waves or a focus pad →Same countdown, with an ambient bed that fades out at zero. No video, no ads.Need a visual countdown instead? →Sand, candle, rocket, traffic light and seven more — built for projectors and classrooms.

Proven Timer Pages

4 Hour Timer45 Minute Timer9 Minute Timer90 Second Timer11 Minute Timer12 Minute Timer
Turn this duration into a focused work cycle with Pomodoro →

Related Timers

30 Second Timer45 Second Timer1 Minute Timer20 Minute Timer30 Minute Timer

Embed this timer

Paste this into any page — a class blog, a lesson plan, a meeting agenda — and visitors get a working workout timer with no script tag, no account and no tracking. Please keep the credit link.

About the Workout Timer

Free workout timer for exercise blocks, circuits, stretching, cooldowns, and gym sessions. Start a 30 minute timer or use the interval timer.

TimerHub calculates remaining time from an absolute finish timestamp, so missed browser callbacks do not create drift. Read the timing accuracy methodology and reproducible tests.

Common Uses

  • Circuit training
  • Stretching
  • Cooldowns
  • Gym sessions
  • Fitness challenges

How to Use the Workout Timer

  • Click Start (or press Space) to begin your 30 minute countdown
  • Press Space again to pause and resume, or R to reset the timer
  • Use the +/- buttons to adjust by 1 minute while running
  • Toggle Repeat to loop the countdown automatically, and watch the finish time under the display
  • Use the Fullscreen control below the timer for a large full-screen countdown (Esc to exit)
  • Pick a background sound — rain, ocean, fireplace or brown noise — that fades out at zero
  • Choose or mute the alarm sound from the sound settings in the header
  • Add ?autostart=1 to the link to start the countdown on load
  • Enable notifications for alerts when your workout timer finishes, even in a background tab

Frequently Asked Questions

What workout timer length should I use?▾

Use 30 to 60 seconds for individual exercises, 20 to 30 minutes for a workout block, and the interval timer for repeated work/rest rounds.

Can this timer run during a workout on my phone?▾

Yes. Open it in your mobile browser, start the timer, and keep the phone nearby for the alarm.

Is there an interval timer for workouts?▾

Yes. Use the interval timer for repeated work and rest rounds, including HIIT, Tabata-style training, and circuits.