Are inputs saved?
Inputs are calculated in your browser and are not sent to a server. When you use sharing, the reproducible URL includes the current conditions.
Tabata Timer
Run intervals such as 20 seconds work, 10 seconds rest, and 8 sets.
Input
Run a Tabata-style timer such as 20 seconds work, 10 seconds rest, 8 sets.
Result
00:20
Work
Set 1 / 8
Use this as a guide and adjust for your real conditions.
Share this tool
How to use
- Enter Work seconds, Rest seconds, Sets.
- Check the estimate in the result area.
- Share a reproducible URL if needed.
Calculation
The tool calculates training estimates from distance, time, and heart-rate inputs.
Notes
- Adjust for your condition and environment.
- This is not medical or coaching advice.
- Stop exercising if you feel pain or discomfort.
Related tools
See more mini tools Running Pace Calculator Fitness Calculate pace per kilometer from distance and time. Walking Time Calculator Fitness Estimate walking time from distance and walking speed. Heart Rate Zone Calculator Fitness Estimate training zones from maximum heart rate. Race Time Predictor Fitness Estimate race times for another distance from a recent result.
FAQ
Are results exact?
Use results as everyday estimates. For exact decisions, confirm with official or specialized sources.
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