Round timer
Boxing Timer
Work/rest round timer for boxing and combat sports training.
Boxing timer
Set round length, rest length, and number of rounds, then Start.
Boxing and combat-sports training runs on a rigid round structure: a fixed work period, a fixed rest period, and a set number of rounds, repeated until the workout is done. This boxing timer automates exactly that pattern with a large, easy-to-read display and an audible bell at every phase change, so you can focus on the bag, the mitts, or your sparring partner instead of watching a stopwatch.
How to use this timer
Set the round length in seconds, the rest length in seconds, and the number of rounds, or tap one of the built-in presets for a common format. Press Start and the timer counts down the first round, sounds a bell, switches automatically to the rest period, counts that down, sounds another bell, and begins the next round — repeating the full cycle until every round has been completed, at which point it displays that the workout is finished.
Common round formats
Amateur boxing typically uses three-minute rounds with a one-minute rest, over three rounds for many amateur bouts. Professional championship boxing traditionally runs twelve three-minute rounds with a one-minute rest between each. Muay Thai commonly uses two-minute rounds with a one-minute rest across five or six rounds, though formats vary by promotion and weight class. This page includes one-tap presets for these common formats so you don't need to remember or manually re-enter the exact numbers each session — tap a preset and the round, rest, and round-count fields fill in automatically, ready to start immediately.
Home training and gym classes frequently use shorter rounds — two or three minutes of work with thirty to sixty seconds of rest — repeated for a set number of rounds matched to the length of the class or workout. Because every field is fully editable, you can dial in any custom combination your gym or coach specifies rather than being limited to the built-in presets.
How this differs from a Tabata or generic interval timer
A Tabata protocol is a specific, fixed high-intensity interval format: twenty seconds of maximum-effort work followed by ten seconds of rest, repeated for eight rounds, totaling four minutes. Boxing rounds are longer and far more variable — three-minute rounds with one-minute rests over three to twelve rounds are common, and gyms frequently customize both durations to match a class format or an individual athlete's conditioning level. This page defaults to a standard three-minute round with a one-minute rest for three rounds and exposes every field for full customization, rather than locking to Tabata's fixed twenty-ten pattern. If you specifically want the strict Tabata protocol, the Tabata timer is preconfigured for that exact format. For a fully generic work/rest interval that fits neither boxing nor Tabata conventions, the interval timer lets you set any work and rest duration you like.
Using the timer for pad work and sparring
Coaches running mitt or pad sessions often want the round structure to match an actual fight or sparring format so the athlete builds pacing and stamina appropriate to real competition, rather than training exclusively in short unstructured bursts. Starting this timer at the beginning of a pad session and letting the bell mark round changes automatically frees the coach from having to watch a stopwatch and manually call out "time" — the same is true for supervised sparring, where an automatic bell keeps both fighters and the corner focused on technique rather than the clock.
Solo bag work and shadow boxing
Training alone on a heavy bag or in front of a mirror benefits just as much from a structured round timer as sparring does — running the clock exactly as it would run in a scheduled class or a fight keeps the pacing realistic instead of drifting into either an overly long, exhausting round or an unrealistically short one. Set the timer to your gym's usual format, or to the specific competition format you are training toward, and let each round genuinely last the intended duration rather than estimating by feel.
Building a 2026 training plan around round structure
Athletes preparing for a bout in 2026 often periodize training by gradually increasing round count or round length as fight day approaches, mirroring the actual format of the upcoming match. Using this timer consistently across a training block — rather than switching between apps or manually timing rounds — makes it easy to track that progression session over session, since the same interface and presets are available every time you open the page.
Sound cues during a loud gym environment
Gyms are noisy — music, other athletes, and the general clatter of equipment can easily drown out a quiet notification sound. Position the device running this timer somewhere visible from wherever you are training, so the large on-screen display and phase label ("Round" versus "Rest") serve as a reliable backup even if the audible bell gets lost in ambient noise. Many boxers glance at the screen between combinations specifically for this reason rather than relying on sound alone.
Related tools
For the strict twenty-second-work, ten-second-rest, eight-round Tabata protocol, use the Tabata timer. For any fully custom work/rest interval outside boxing or Tabata conventions, see the interval timer. For a simple countdown without round structure, use the online timer. The full time tools hub lists every related timer and clock.
Frequently asked questions
What's the default round format?
The timer defaults to three-minute rounds with a one-minute rest, repeated for three rounds — a common amateur boxing format. Every field is editable, and one-tap presets are included for amateur, professional title, and Muay Thai formats.
How is this different from a Tabata timer?
Tabata is a fixed twenty-second-work, ten-second-rest protocol repeated for eight rounds. Boxing rounds are longer and fully customizable — typically two to three minutes of work with a one-minute rest, over anywhere from three to twelve rounds.
Can I set a custom round length and rest period?
Yes. The round length, rest length, and number of rounds are all independently editable fields, so you can match any gym class format, coach's instructions, or personal training plan beyond the built-in presets.
Does the timer bell sound automatically at each phase change?
Yes. An audible bell plays when a work round ends and rest begins, and again when rest ends and the next round starts, so you don't need to watch the countdown continuously during pad work or sparring.
What happens when all rounds are finished?
The timer displays that the workout is complete after the final round and rest period end, rather than starting an unexpected extra round, so you know clearly when the full session is done.