Interval Timer

Free online interval timer for HIIT, Tabata, and circuit training. Set work and rest periods with custom rounds.

HIIT workoutsTabataCircuit trainingBoxing rounds
sec
sec
Press Start to begin
⏰ Time's Up!
00:00:20
OTHER TIMERS
2 Min 3 Min 45 Min 90 Min Chess Interval Lap Timer 3 Hour Silent Fullscreen
FAQ
What is Tabata timing?
Tabata is 20 seconds of intense exercise followed by 10 seconds of rest, repeated 8 times for a 4-minute round.
What is HIIT?
High-Intensity Interval Training alternates between intense exercise bursts and short rest periods to maximize fat burn.