HIIT Timer
Run clean work/rest interval rounds with a loud alarm, sound choices, and a distraction‑free full‑screen mode. Pick a popular HIIT or Tabata preset below, or build your own custom interval timer.
Popular HIIT timers
One click → dedicated interval timer page
Build a custom HIIT timer
Choose a work/rest pair and rounds (SEO-friendly pages)
Tip: The “work/rest ratio” depends on your goal. For power/sprints, rest is often longer. For conditioning, rest is shorter. Start conservative and increase intensity gradually.
HIIT guides
Short, practical pages
Online HIIT timer: intervals that are easy to follow
A HIIT timer (high‑intensity interval training timer) makes interval workouts simple: you choose a work time, a rest time, and the number of rounds, then follow the countdown. People often search for “HIIT timer”, “Tabata timer”, or “interval timer” because keeping track of rounds while you’re moving is distracting. Clock7’s HIIT Timer solves that by using a big display, a loud end‑of‑session alarm, and optional full screen mode so your phone or laptop becomes a clear training clock.
HIIT is not one single routine — it’s a way of organizing effort. Many workouts use a 1:1 pattern such as 30 seconds work and 30 seconds rest. Harder formats shorten the rest (like 40/20), while beginner formats lengthen the rest (like 20/40). Tabata is a specific protocol: 20 seconds work, 10 seconds rest, repeated 8 times (4 minutes total). For strength‑style circuits, you can use this timer for moves like squats, push‑ups, mountain climbers, burpees, kettlebell swings, or sprint intervals on a bike, rower, or treadmill.
To stay safe and consistent, warm up for a few minutes before you start the first round. During work intervals, move fast while keeping form controlled. During rest, breathe and prepare for the next effort. When the timer ends, cool down, hydrate, and consider a light stretch. If you feel dizzy, sharp pain, or unusual shortness of breath, stop and recover. With the right work/rest ratio, HIIT can be an efficient way to build conditioning in a short session.
Explore the guide pages for interval ratios, warm‑up ideas, and the difference between HIIT and Tabata — or start a preset and tap Full Screen for a distraction‑free training clock.