20 Sec, 10 Sec Tabata Timer

What Is a 20/10 Timer?

A 20/10 timer structures your workout into 20 seconds of work followed by 10 seconds of rest, typically repeated across multiple rounds. This setup is best known for its use in Tabata-style training, where the goal is to maintain high intensity over short intervals with minimal rest.

Following a 20 second work and 10 second rest cycle helps develop both aerobic and anaerobic fitness. It challenges your speed, endurance and recovery in a very short space of time, making it ideal for fast, focused sessions when time is limited but intensity needs to stay high.

How to Use the 20/10 Interval Timer

Press start and complete your first exercise for 20 seconds. When the timer beeps, rest for 10 seconds, then begin your next effort. Repeat the cycle for as many rounds as you plan to complete. You can choose to focus on a single movement or rotate through different exercises depending on your goals.

Our free online 20/10 timer includes clear audio signals and fullscreen mode so you can stay focused without needing to keep checking your device or counting manually.

Workouts That Fit the 20/10 Format

• Tabata Conditioning – traditional setups with burpees, jump squats, press-ups or high knees
• Strength Intervals – timed sets of kettlebell swings, thrusters or dumbbell snatches
• Cardio Drills – sprint intervals on a bike, treadmill or rower using 20 second bursts
• Core Work – planks, sit-ups or dynamic core moves in short, intense blocks

Benefits of 20s Work 10s Rest Interval Training

Short, repeated efforts push the body to work at a higher intensity while teaching faster recovery between sets. This builds endurance, mental toughness and metabolic conditioning quickly. The strict work-to-rest ratio forces efficient movement, better pacing and sharper focus across the session.

Using a structured timer ensures you maintain the right timing across your whole workout, rather than relying on estimation or losing rhythm as fatigue sets in.

Start Your Free 20/10 Workout Timer Now

Choose your exercises, press start, and commit fully to each 20 second effort. Our free 20/10 interval timer is simple, clear and works on any device — no downloads, no apps, just focused training whenever you need it.