45 minutes of
skiing
513 kcal 45 minutes of skiing burns approximately 513 calories for a 70 kg adult, based on a MET value of 9.3. Heavier bodies burn proportionally more: 659 kcal at 90 kg, 806 kcal at 110 kg.
SOURCE·2024 Adult Compendium of Physical Activities·REVIEWED JUL 2026
MET 9.3 × 3.5 × 70 kg ÷ 200 = 11.39 kcal/min × 45 min = 513 kcal
Source—2024 Adult Compendium of Physical Activities—code 19150—ACSM energy equation—retrieved 2026-07
How this is worked out
- Take the MET value for skiing from the 2024 Adult Compendium of Physical Activities: MET 9.3, the median of its 17 measured variations (MET 4.3–16).
- Convert MET to a rate using the ACSM relationship: multiply by 3.5, then by body mass in kilograms, then divide by 200. That gives kilocalories per minute.
- Multiply the rate by the number of minutes actually spent.
- Round to whole kilocalories. Nothing else is applied — no age factor, no sex factor, no proprietary adjustment, because the underlying data does not support one.
kcal/min = MET × 3.5 × mass(kg) ÷ 200 kcal = kcal/min × minutes 9.3 × 3.5 × 70 ÷ 200 = 11.39 kcal/min 11.39 × 45 min = 513 kcal
45 minutes of skiing, by body weight
| Body weight | 45 minutes | Per minute |
|---|---|---|
| 50 kg (110 lb) | 366 | 8.1 |
| 60 kg (132 lb) | 439 | 9.8 |
| 70 kg (154 lb) | 513 | 11.4 |
| 80 kg (176 lb) | 586 | 13.0 |
| 90 kg (198 lb) | 659 | 14.6 |
| 100 kg (220 lb) | 732 | 16.3 |
| 110 kg (243 lb) | 806 | 17.9 |
| 120 kg (265 lb) | 879 | 19.5 |
SOURCE·2024 Adult Compendium of Physical Activities·REVIEWED JUL 2026
Questions
How many calories does 45 minutes of skiing burn?
About 513 kcal for a 70 kg adult at MET 9.3. At 60 kg it is 439 kcal and at 100 kg it is 732 kcal.
Is 45 minutes of skiing a good workout?
At MET 9.3 this is very vigorous activity. Adults are advised to accumulate 150 minutes of moderate or 75 minutes of vigorous activity a week, so 45 minutes is 60% of a week's target at that intensity.
A number this clean is a model. It does not know your gradient, your gear, the wind, or how hard you were actually trying.
MET from the 2024 Adult Compendium of Physical Activities. General information only — not medical, fitness or nutrition advice. Calorie figures are population estimates and vary between individuals.
