Sauna Calorie Calculator
Estimate calories burned during a sauna session from weight, temperature and time.
Enter your values
ⓘ Live results
- Total calories burned
- 52 kcal
- Above resting burn
- 24 kcal
- Per minute
- 2.59 kcal/min
- Estimated sweat loss
- 0.5 lb
Water weight only — rehydrate; this is not fat loss.
Quick answer
A sauna raises resting metabolic rate by roughly 1.5–2× as the body works to cool itself. A 180 lb person in a 175 °F sauna for 20 minutes burns roughly 50–70 calories above resting.
kcal ≈ BMR/min × heat multiplier × minutes
How to use the Sauna Calorie Calculator
- 1Enter body weight, temperature and time.
- 2Read total and above-resting calories.
- 3Rehydrate: most weight lost in a sauna is water.
Worked example
Using the values the calculator loads with:
Inputs
- Body weight180 lb
- Session length20 min
- Sauna temperature175 °F
Results
- Total calories burned52 kcal
- Above resting burn24 kcal
- Per minute2.59 kcal/min
- Estimated sweat loss0.5 lb
Frequently asked questions
Does a sauna burn fat?
Only marginally. The extra burn is modest and most of the immediate weight change is sweat, which returns as soon as you rehydrate.
How long should a sauna session be?
Most guidance suggests 15–20 minutes per session, up to 3–4 sessions a week, with plenty of water. Stop if you feel dizzy.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.