HIIT timer
Set up for a classic 45/15 HIIT workout: 45 seconds of work, 15 seconds to switch exercises, 12 rounds (about 12 minutes). Change any number to suit your workout.
Beeps count down the last 3 seconds of every interval, and a different sound marks the start of work and rest, so you never need to look at the screen. Press Space to start or pause and R to reset. Your settings are saved on this device.
Questions people ask
What does HIIT stand for?
High-intensity interval training: short bursts of hard exercise separated by short recovery periods.
How long should a HIIT workout be?
Most HIIT sessions last 10 to 30 minutes including warm-up. The hard intervals themselves often add up to less than 15 minutes.