Is this calculation free and private?

Yes, 100% of calculations execute locally in your web browser. No inputs or personal data are stored or transmitted.

What does the HIIT & Tabata Interval Timer Calculator give me?

It works out Total Workout Duration, Total Pure Work Time and Estimated Caloric Burn, updating live as you change the inputs.

What do I need to enter?

Just Work High Intensity Duration, Rest / Recovery Duration, Interval Rounds Per Set, Total Sets and Rest Between Sets. Every field has a sensible default you can start from.

Is my data uploaded anywhere?

No. The calculation runs in your browser with JavaScript — nothing you type is sent to a server or stored.

Does it work on a phone?

Yes. The layout adapts to small screens and needs no app or signup.

HIIT & Tabata Interval Timer Calculator

Calculate total session duration and calorie burn for High-Intensity Interval Training (HIIT) workout routines.

100% free
Private in browser
No signup
No watermarks

Work High Intensity Duration (Seconds)

Rest / Recovery Duration (Seconds)

Interval Rounds Per Set

Total Sets

Rest Between Sets (Seconds)

Total Workout Duration (Minutes)

Total Pure Work Time (Minutes)

Estimated Caloric Burn (kcal)

299

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About HIIT & Tabata Interval Timer Calculator

Calculate total session duration and calorie burn for High-Intensity Interval Training (HIIT) workout routines. Enter Work High Intensity Duration, Rest / Recovery Duration and Interval Rounds Per Set and the tool works out Total Workout Duration, Total Pure Work Time and Estimated Caloric Burn straight away. Everything runs in your browser, so your data never leaves your device.

How to use HIIT & Tabata Interval Timer Calculator

Enter Work High Intensity Duration, Rest / Recovery Duration and Interval Rounds Per Set.
Adjust the remaining options (Total Sets and Rest Between Sets) to match your case.
Read Total Workout Duration, Total Pure Work Time and Estimated Caloric Burn in the results panel — copy or download what you need.

Key features

Shows Total Workout Duration (Minutes)
Shows Total Pure Work Time (Minutes)
Shows Estimated Caloric Burn (kcal)
5 adjustable inputs, results update as you type
No signup, no limits

Frequently asked questions

Is this calculation free and private?: Yes, 100% of calculations execute locally in your web browser. No inputs or personal data are stored or transmitted.
What does the HIIT & Tabata Interval Timer Calculator give me?: It works out Total Workout Duration, Total Pure Work Time and Estimated Caloric Burn, updating live as you change the inputs.
What do I need to enter?: Just Work High Intensity Duration, Rest / Recovery Duration, Interval Rounds Per Set, Total Sets and Rest Between Sets. Every field has a sensible default you can start from.
Is my data uploaded anywhere?: No. The calculation runs in your browser with JavaScript — nothing you type is sent to a server or stored.
Does it work on a phone?: Yes. The layout adapts to small screens and needs no app or signup.

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