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Stopwatch for HIIT and Interval Workouts

Time your high-intensity intervals, rest periods, and circuit workouts with precision and lap recording.

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Keyboard: Space start/stop Β· L lap Β· R reset

Fitness tips

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For Tabata workouts (20s work / 10s rest Γ— 8 rounds), use the lap button after each work or rest phase to track interval consistency.

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The fastest/slowest lap highlighting shows whether your intensity is dropping over rounds β€” useful for tracking endurance improvement over weeks.

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Use the keyboard shortcut Space to start/stop without taking your hand off the mat. Great for floor exercises where you can't easily touch your phone.

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Copy your laps after a workout to log to a fitness journal or spreadsheet. The tab-separated format pastes cleanly into Google Sheets or Excel.

Cara kerja

1
Masukkan
Enter your data into the tool above. Everything stays local to your browser.
2
Proses
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Unduh
Get your result instantly. Nothing is stored after you leave the page β€” complete privacy.

Mengapa milik kami?

βœ“Sepenuhnya gratis β€” tidak ada biaya tersembunyi, selamanya
βœ“Tidak perlu akun, email, atau login
βœ“File tidak pernah meninggalkan perangkat Anda
βœ“Tidak ada batasan ukuran file sama sekali
βœ“Tidak ada tanda air pada output apa pun

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