12-Round Boxing Timer

3 Minutes Work | 1 Minute Rest | Professional Interval Clock

This online boxing timer provides a professional 12-round championship structure for your workout. Designed for boxers, MMA fighters, and fitness enthusiasts, this clock handles your intervals so you can focus on your performance.

Timer Features:

  • 12 Rounds: Full championship distance for stamina and pacing.

  • 3/1 Format: 3 minutes of high-intensity work followed by 1 minute of recovery.

  • Universal Utility: No app downloads or sign-ups required—just hit play.

If you are tired of the same repetitive shadowboxing, use my Virtual Padwork Library. Access a 90-Day Program and over 1,000+ videos.

Access Full Online Boxing Program

Bonus: Shorter Round Timers

Don't have time for a full 12-round championship camp today? Use these shorter blocks to keep your training consistent. Each follows the same professional 3/1 interval.