← all tools
☆
🥊 Round Timer
Round → rest → round → gong. Set it up and hit start.
Round length
2:00
3:00
4:00
5:00
Rest length
0:30
1:00
1:30
2:00
Number of rounds
READY
03:00
Start
Reset
A warning sound plays 10s before round end, and a gong on every phase change. Keep the tab open.
Related tools
Apple Health Viewer
Charts from your iPhone Health export: steps, heart rate, sleep…
Military Workout
Circuit, EMOM, pyramid and an 8-week bodyweight program — with a…
Workout Generator
Pick a goal and equipment — get today's workout plan with weights…
Shift Timer
Line-change alarm for hockey, in-browser sound, works offline
Stopwatch with Laps
Time yourself and track laps — right in the browser.
Running Pace Calculator
Distance, time, pace — enter any two and get the third, plus…
← All Junkbox.tools tools