Swimming Calories Calculator
Estimate calories burned while swimming, based on your weight and swimming duration.
- Free to use
- Accurate results
- No registration required
- Works on all devices
Enter your weight and swimming duration to estimate calories burned.
kg
minutes
Your result
221 kcal
Calories burned
Calories per minute7.35 kcal/min
AI explanation
Formula
Calories/min = 6.0 (swimming MET) × 3.5 × weight(kg) / 200. Total = calories/min × durationWorked example
70kg, 30 minutes of swimming
| Field | Value |
|---|---|
| Weight | 70 |
| Duration | 30 |
| Calories burned | 221 |
Assumptions
- Uses a MET value of 6.0 for moderate-effort freestyle swimming, from the Compendium of Physical Activities. Stroke, effort, and pace materially change actual burn.
- Informational only.
Frequently asked questions
How many calories does swimming burn?
At a moderate effort, a 70kg person burns roughly 221 kcal in 30 minutes of swimming — vigorous swimming or a faster stroke burns more.
Does swimming stroke affect calorie burn?
Yes — more demanding strokes (like butterfly) and higher intensity burn considerably more than a relaxed freestyle pace, which is what this calculator's MET value represents.
Is swimming a good full-body workout?
Yes — it engages most major muscle groups with low joint impact, making it a popular choice for both cardio fitness and active recovery.
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Sources
- 2011 Compendium of Physical Activities: a second update of codes and MET values — Medicine & Science in Sports & Exercise. Effective 01-08-2011, reviewed 13-09-2026.
This calculator provides a general estimate only and does not constitute personalized medical or fitness advice.
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