Tabata & Interval Training Timer
Tabata is a form of high-intensity interval training (HIIT) developed by Dr. Izumi Tabata. The classic protocol is eight rounds of 20 seconds of all-out work followed by 10 seconds of rest, for a total of four minutes. This timer lets you set your own work, rest, rounds and prepare time to match any interval workout — not just Tabata.
How It Works
The timer counts down a short prepare phase so you can get into position, then alternates work and rest for the number of rounds you set. Each phase has a distinct color — red for work, green for rest — plus a beep on every transition, so you never have to stare at the screen mid-set.
How to Set Up Your Interval Timer
Choose a Prepare time to get ready before the first round starts. Set Rounds for how many work/rest cycles you want. Set Work and Rest durations in seconds. The total workout time updates automatically so you know exactly how long the session will take before you press Start.
Popular Interval Protocols
Classic Tabata: 8 rounds, 20s work / 10s rest. EMOM-style work: 60s work / 0s rest for continuous rounds. Longer HIIT circuits: 30–45s work / 15–20s rest for strength or bodyweight training. Boxing rounds: 180s work / 60s rest to mimic a fight timer.
Not sure if your work interval is hard enough? Try talking during it. If you can only get out one or two words at a time, you're in the right zone. If you can hold a full conversation, push the pace — Tabata is meant to feel close to maximal effort.
Tips & Tricks
Always warm up first. Spend 3–5 minutes on light cardio and dynamic stretching before your first work round — Tabata intervals are near-maximal effort and cold muscles are more injury-prone.
Progress rounds before duration. If eight rounds starts feeling manageable, add one or two more rounds before you extend the work interval itself — it's an easier way to build endurance without overreaching.
Match rest to your goal. Shorter rest (5–10s) keeps your heart rate elevated for conditioning. Longer rest (15–20s) lets you recover more power for strength-focused intervals like sprints or heavy kettlebell swings.
Did you know? The original 1996 Tabata study, led by Dr. Izumi Tabata, tested Japanese Olympic speed skaters. After just six weeks of 20s-on/10s-off training four days a week, participants improved both their aerobic and anaerobic capacity — a combination researchers hadn't seen from either steady-state or interval training alone.
Frequently Asked Questions
Can I change the number of rounds?
Yes. Set any number of rounds from 1 to 99 to fit workouts of any length.
Does the timer make a sound between phases?
Yes. A distinct beep plays every time the timer switches between prepare, work, and rest phases.
Can I use this for something other than Tabata?
Yes. Because work, rest, rounds, and prepare time are all adjustable, the timer works for any interval-based training style, not just the classic Tabata protocol.