Calories burned: Water aerobics
Aqua fitness classes in chest-deep water — resistance without joint impact.
≈ 186 kcal in 30 min at 70 kg
Reviewed by the Exercise Calorie Calculator editorial team · · Method & sources
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Estimate only — not medical advice. Actual burn varies with fitness, body composition, effort and conditions.
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Water aerobics calorie chart
Estimated kcal for water aerobics (MET 5.3) by session length and body weight. Values are rounded estimates.
| Duration | 50 kg | 60 kg | 70 kg | 85 kg | 100 kg |
|---|---|---|---|---|---|
| 10 min | 44 | 53 | 62 | 75 | 88 |
| 15 min | 66 | 80 | 93 | 113 | 133 |
| 20 min | 88 | 106 | 124 | 150 | 177 |
| 30 min | 133 | 159 | 186 | 225 | 265 |
| 45 min | 199 | 239 | 278 | 338 | 398 |
| 1 h | 265 | 318 | 371 | 451 | 530 |
| 1.5 h | 398 | 477 | 557 | 676 | 795 |
Imperial check: 154 lb ≈ 70 kg · 187 lb ≈ 85 kg · 220 lb ≈ 100 kg.
About this estimate
Water aerobics carries a MET of 5.3(moderate intensity) in the Compendium of Physical Activities — the research standard for energy-cost data (source database, see also our full methodology). The calculator uses:
calories = MET × weight (kg) × hours
So for a 70 kg person, one hour of water aerobics costs about371 kcal. Effort matters: going harder, adding hills, carrying load or rushing intervals all push the real number up; breaks and easy pacing pull it down.
How to burn more
- Add intervals — 1 minute hard, 2 minutes easy — to raise average intensity.
- Extend the session gradually; an extra 10 minutes adds ~62 kcal at 70 kg.
- Combine with a second activity — see the compare tray in the calculator above.
- Keep non-exercise movement high on rest days (walking, stairs, chores).
Estimate only — not medical advice. Real-world burn depends on fitness, body composition, age, weather and terrain.
Water aerobics calorie FAQ
How many calories does water aerobics burn in 30 minutes?
For a 70 kg (154 lb) person, water aerobics burns about 186 kcal in 30 minutes at its standard intensity (MET 5.3). Heavier people burn more, lighter people less — the chart below shows common weights.
How many calories does water aerobics burn in an hour?
About 371 kcal for a 70 kg person at MET 5.3. Double the time roughly doubles the burn, assuming steady effort throughout.
What is the MET of water aerobics?
The MET (metabolic equivalent of task) of water aerobics is 5.3 — moderate intensity. The formula is: calories = MET × weight(kg) × hours. Example at 70 kg: 5.3 × 70 × 1 h = 371 kcal.