How to Use the Scuba & Snorkeling Calorie Calculator
Water-based activity can feel deceptively easy, but water resistance, gear weight, and pressure make actual calorie burn higher than it feels. This calculator multiplies your body weight and session duration by a MET (metabolic equivalent) value for your activity type, estimating calories burned during your snorkeling or scuba session. Guidelines from water-sports organizations like US Masters Swimming note that current strength and water temperature can significantly change effort level.
Activity type is split into four levels. Easy snorkeling in calm water sits at MET 5.0, the lowest intensity, while snorkeling against current requires continuous swimming and rises to MET 6.0. General scuba diving — carrying a tank and gear while managing buoyancy — sits at MET 7.0, and diving against strong current or work-style diving tops out at MET 8.0. Choose whichever option best matches your actual conditions.
This is an average-based estimate. Actual burn can vary with water temperature (colder water requires more energy for thermoregulation), wetsuit thickness, and individual swimming ability. Use this as a planning reference rather than an exact measurement for your dive log.
Frequently Asked Questions
Yes — gear weight, buoyancy control, and fin-kick resistance generally make scuba diving burn more per minute than snorkeling. Snorkeling in strong current can close that gap, though.
Your body may burn extra energy to maintain core temperature, but this calculator only reflects the average intensity of the activity itself. Cold-water dives can burn more than this estimate.