Swimming Calorie Calculator
Calories burned per stroke, pace and pool session length.
Enter your values
Choose one of: Freestyle, easy, Freestyle, moderate, Freestyle, fast, Backstroke, Breaststroke, Butterfly, Treading water.
Enter the time in the water in minutes.
Enter the body weight in kg.
Enter the distance swum in m.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Calories burned
- 490 kcal
- Calories per hour
- 654 kcal/h
- Calories per 100 m
- 32.7 kcal
- METs
- 8.3
- Average pace
- 3:00 per 100 m
Working
- 18.3 METs x 3.5 x 75 kg / 200 x 45 min = 490 kcal
Quick answer
Swimming burn depends on stroke and effort more than distance. Each stroke has a MET value that is multiplied by weight and time.
kcal = METs x 3.5 x kg / 200 x minutes
At a glance
| What it does | Calories burned per stroke, pace and pool session length. |
|---|---|
| Category | Fitness |
| Inputs needed | Stroke, Time in the water, Body weight, Distance swum |
| Main output | Calories burned |
| Formula | kcal = METs x 3.5 x kg / 200 x minutes |
| Cost | Free — no sign-up, no download |
How to use the Swimming Calorie Calculator
- 1Pick the stroke and effort that best matches most of your session.
- 2Enter total time in the water, your weight and the distance you covered.
- 3Use the per-100 m figure to compare sets and strokes fairly.
Inputs explained
- Stroke
- Choose one of: Freestyle, easy, Freestyle, moderate, Freestyle, fast, Backstroke, Breaststroke, Butterfly, Treading water.
- Time in the water(minutes)
- Enter the time in the water in minutes.
- Body weight(kg)
- Enter the body weight in kg.
- Distance swum(m)
- Enter the distance swum in m.
Worked example
Using the values the calculator loads with:
Inputs
- StrokeFreestyle, moderate
- Time in the water45 minutes
- Body weight75 kg
- Distance swum1500 m
Results
- Calories burned490 kcal
- Calories per hour654 kcal/h
- Calories per 100 m32.7 kcal
- METs8.3
- Average pace3:00 per 100 m
- 8.3 METs x 3.5 x 75 kg / 200 x 45 min = 490 kcal
Frequently asked questions
Does rest between sets count?
Only partly. Enter moving time for the most accurate number, or enter total time and expect a slight overestimate.
Why is butterfly so much higher?
Butterfly has a MET value around 13.8 versus 8.3 for moderate freestyle, because it recruits far more muscle per stroke cycle.
What do I need to enter into the Swimming Calorie Calculator?
Just 4 values: stroke, time in the water, body weight, distance swum. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Swimming Calorie Calculator work out the answer?
Swimming burn depends on stroke and effort more than distance. Each stroke has a MET value that is multiplied by weight and time. It applies the formula kcal = METs x 3.5 x kg / 200 x minutes and shows the working so you can check each step by hand.
Is the Swimming Calorie Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.