Swimming Calories Calculator
Calculate calories burned swimming freestyle, breaststroke, backstroke, or butterfly
Swimming for 45 minutes at 7 METs
Mathematical Formula & Scientific Methodology
Formula: Aquatic Locomotor Energy Equation
Calories = MET × Body Mass (kg) × (Duration / 60)Water is ~800 times denser than air, resulting in high total-body muscular resistance.
Model Assumptions
- Continuous swimming laps
Variables & Standard Units
| Symbol | Physiological Meaning | Unit |
|---|---|---|
| MET | Aquatic resistance MET index (5.3 to 13.8) | dimensionless |
Scientific Limitations
- Swimming efficiency varies widely based on stroke mechanics and body buoyancy
Peer-Reviewed Scientific Citations
2011 Compendium of Physical Activities: a second update of codes and MET intensities (2011)
Ainsworth BE, Haskell WL, Herrmann SD, et al. (2011) — Medicine & Science in Sports & Exercise, 43(8), 1575-1581
Key Finding: Defines Metabolic Equivalent of Task (1 MET = 3.5 ml O2/kg/min or 1 kcal/kg/hour) across hundreds of standardized physical activities.
Frequently Asked Questions
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