What this snow shoveling calorie calculator does
This calculator estimates calories burned during snow shoveling using the MET (Metabolic Equivalent of Task) formula - the gold standard used by exercise physiologists and the 2011 Compendium of Physical Activities. Enter your body weight and how long you exercised; the calculator multiplies the activity's MET value by your weight (kg) and time (hours) to estimate kcal burned. Higher intensity = higher MET = more calories burned per minute.
Intensity guide for accurate results
Pick the intensity that matches what you actually did - not what you wished you did. Each snow shoveling intensity has a specific MET value from peer-reviewed research. If you alternated paces (e.g., interval training), pick the average. For more precise tracking, use a heart rate monitor and the Heart Rate Calorie Calculator on HisabWeb - it accounts for individual cardiovascular response, which the MET method approximates.
What is MET (Metabolic Equivalent)?
MET = the energy cost of an activity relative to sitting quietly. 1 MET ≈ 3.5 mL O2 per kg of body weight per minute, or approximately 1 kcal per kg per hour at rest. Sitting = 1 MET; walking slowly = ~2.5 MET; running fast = ~13 MET. The Compendium of Physical Activities (Ainsworth et al., 2011) catalogs 821 activities with their MET values from oxygen-consumption studies. Multiplying MET × weight × time gives a robust calorie estimate for adults.
Why body weight matters
Heavier bodies burn more calories doing the same activity - more mass to move means more energy. A 90 kg person burns ~29% more calories than a 70 kg person doing the same workout. The MET formula scales linearly with weight, so accurate weight input is critical. Tip: use your current weight, not your goal weight, for the most realistic estimate.
Accuracy & limitations
MET estimates typically come within ±15-20% of metabolic-cart-measured values for moderate-intensity activities. Sources of variability: individual VO2max, body composition (more muscle = higher BMR), exercise efficiency (trained athletes burn fewer calories at the same speed), terrain, equipment, and even temperature. For more precision, use a heart-rate-based estimate (Keytel formula) or a metabolic cart in a lab.
Frequently asked questions
Snow shoveling is one of the leading causes of winter heart attacks. The combination of cold air (vasoconstriction), sudden vigorous effort (heart rate spikes to 90%+ HRmax in seconds), and the upper-body strain unique to shoveling triples the risk of cardiac events in people with existing heart disease. Always: warm up first, take frequent breaks, avoid the morning peak cardiac-risk window.
200-525 kcal for a 70 kg adult, depending on snow density. Light powder (MET 3.5) burns ~245 kcal/hour, moderate snow (MET 5.3) ~371 kcal/hour, heavy wet snow (MET 7.5) ~525 kcal/hour. Snow shoveling involves more upper body and core work than walking, so it feels harder per minute.
Generally no, unless you're physically fit and not in a high-risk cardiac group (no heart disease, hypertension under control, no recent cardiac events). The American Heart Association advises that adults over 55 with sedentary lifestyles, hypertension, or known coronary disease should avoid heavy shoveling entirely. Use a snow blower, hire help, or salt walkways.
Sources
- 2011 Compendium of Physical Activities: A Second Update of Codes and MET Values— Ainsworth et al., Medicine & Science in Sports & Exercise, 2011;43(8):1575-1581
Did we solve your problem today?
