Boxing Round Timer
A hands-free boxing and MMA round timer with a start/end bell, a 10-second warning clapper before each round ends, and a separate rest bell. Round length, rest and round count are independently configurable.
Built by the AbraCalc team
How to play
- Set the round length (minutes:seconds as total seconds), rest length in seconds, and total number of rounds.
- Tap Start — the timer goes fullscreen and an opening bell marks the start of round 1.
- Train through each round; a distinct wood-clap warning fires once with 10 seconds left in the round, separate from the transition bell.
- A bell marks every round-to-rest and rest-to-round switch automatically; after the final round the timer ends with no trailing rest and a finishing bell.
Set your round length, rest length, and number of rounds independently — a classic 3:00 round with a 1:00 rest for 12 rounds, or any combination for sparring, bag work, or MMA training. Tap Start and the timer goes fullscreen so it's readable from across the gym: a bell rings to open round one, a distinct 10-second warning clapper fires once near the end of every round to tell fighters to finish strong, and a bell marks every round-to-rest and rest-to-round transition. The round counter only advances when a round actually completes, rest never follows the final round, and pause freezes the exact time remaining so you can resume without losing a second. When all rounds are done, a finishing bell and a small celebration mark the workout complete.
Frequently asked questions
- How is this different from the Interval / Tabata Timer?
- Interval / Tabata Timer is a generic fitness work/rest interval tool (like 20 seconds on, 10 off) with no round-specific cues. This Boxing Round Timer is built specifically for boxing and MMA training: it uses round/rest bell language, a distinct 10-second warning clapper before each round ends, and a round-number focus that matches how a real corner works a fight.
- What does the 10-second clapper warning sound like and when does it fire?
- It's a rapid wood-clap style cue, clearly different from the bell tone, and it fires exactly once starting at 10 seconds remaining in a ROUND phase — it never fires during rest, and it never repeats after the round ends.
- Can I set the round length and rest length to different values, and does pausing lose time?
- Yes — round length, rest length, and total rounds are three fully independent settings, so you can run something like 2-minute rounds with 30-second rests. Pausing freezes the exact time remaining in the current round or rest; resuming continues from that exact point with no time lost or skipped.