HIIT (High-Intensity Interval Training) alternates between high-intensity exercise and low-intensity recovery. It typically involves multiple cycles of work and rest intervals.

Tabata is a specific HIIT format: 20 seconds all-out exercise + 10 seconds rest, repeated 8 rounds for a total of 4 minutes. This tool includes a Tabata preset.

Can I customize times?

Yes. You can customize work time, rest time, number of rounds, and preparation countdown.

Workout Timer - Free ToolBase

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📋 Preset Modes

⚙️ Workout Settings

Prep Time (sec)

Work Time (sec)

Rest Time (sec)

Rounds

Ready

00:00

0 / 8 rounds

💡 Mode Descriptions

HIIT: High-intensity interval training. Recommended: 40s Work + 20s Rest, 8-12 rounds.
Tabata: 20s all-out effort + 10s Rest, 8 rounds for a 4-minute session.
EMOM: Every Minute On the Minute — complete your reps each minute, rest for the remainder. Recommended 10-20 minutes.
Custom: Fully customize Work/Rest times and number of rounds.

What is Workout Timer?

Workout Timer is a free online tool that runs entirely in your browser. No download or signup needed — enter Prep Time and Work Time to get results instantly. All data is processed locally.

Use Cases

Calculate time intervals when scheduling events
Convert time zones for international communication
Track important dates like age or countdowns
Quick time checks on mobile without calendar apps

Key Features

Completely Free: No registration, no limits
Privacy Safe: Data never leaves your browser
Cross-Platform: Any modern browser
Zero Dependencies: Open and use

💪 Workout Timer