How is this different from the general interval timer?

The interval timer is a blank-slate work/rest timer for any activity. This tool is built specifically for boxing-style training: it uses Round/Rest labels, a bell-style alert instead of a beep, a 10-second warning before each round ends, and boxing-format presets.

What is the standard boxing round format?

Professional boxing typically runs 3-minute rounds with a 1-minute rest, for up to 12 rounds. Amateur bouts are often shorter, commonly 3 rounds. Use the presets to fill these in, then adjust as needed.

Does the bell sound like a real boxing bell?

The alert uses two short metallic tones in quick succession, similar to a ring bell, rather than a single beep. It plays at the start of each round and again when the round ends.

What does the 10-second warning do?

A short double-beep plays 10 seconds before a round ends, the same convention used in most boxing gyms, so fighters and coaches know the round is about to close.

Can I pause mid-round?

Yes. Pause freezes the countdown exactly where it is, and Resume continues from that same point in the same round or rest period.

Does the timer keep accurate time if I switch tabs?

Yes. It tracks the actual end time rather than counting ticks, so the display catches up correctly even if the browser tab was in the background.

Boxing Round Timer

Name: Boxing Round Timer
Availability: InStock
Author: Nham Vu

Set round length, rest length, and round count, then start a bell-timed boxing round timer with a 10-second warning before each round ends.

Round Settings

Quick presets

Round min

Round sec

Rest min

Rest sec

Rounds

Get ready sec

Bell and warning sounds

Total time: 48:00

Ready

3:00

Round 0 / 12

Summary

Set round length, rest length, and round count, then start a bell-timed boxing round timer with a 10-second warning before each round ends.

How it works

Set round length and rest length in minutes and seconds, and pick the number of rounds.
Or click a preset for a common format, then adjust any field.
Click Start; an optional get-ready countdown runs first, then a bell starts Round 1.
A short warning sounds 10 seconds before a round ends, then the bell rings and rest begins.
Pause anytime to freeze the clock and Resume from the same point; Reset to configure a new session.

Use cases

Run pro-style 3-minute boxing rounds with a 1-minute rest between them.
Time amateur bouts or sparring sessions with a shorter round count.
Run Muay Thai or kickboxing rounds with longer rest periods.
Give a coach a hands-free bell so they can focus on watching the fighters.
Practice solo bag work or shadowboxing on a fixed round schedule.
Time pad work or mitt rounds with a warning before the round ends.

Frequently Asked Questions

Last updated: 2026-07-22 · Reviewed by Nham Vu