90 minutes of
carpentry
430 kcal 90 minutes of carpentry burns approximately 430 calories for a 70 kg adult, based on a MET value of 3.9. Heavier bodies burn proportionally more: 553 kcal at 90 kg, 676 kcal at 110 kg.
SOURCE·2024 Adult Compendium of Physical Activities·REVIEWED JUL 2026
MET 3.9 × 3.5 × 70 kg ÷ 200 = 4.78 kcal/min × 90 min = 430 kcal
Source—2024 Adult Compendium of Physical Activities—code 06100—ACSM energy equation—retrieved 2026-07
How this is worked out
- Take the MET value for carpentry from the 2024 Adult Compendium of Physical Activities: MET 3.9, the median of its 10 measured variations (MET 2.3–7).
- 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 3.9 × 3.5 × 70 ÷ 200 = 4.78 kcal/min 4.78 × 90 min = 430 kcal
90 minutes of carpentry, by body weight
| Body weight | 90 minutes | Per minute |
|---|---|---|
| 50 kg (110 lb) | 307 | 3.4 |
| 60 kg (132 lb) | 369 | 4.1 |
| 70 kg (154 lb) | 430 | 4.8 |
| 80 kg (176 lb) | 491 | 5.5 |
| 90 kg (198 lb) | 553 | 6.1 |
| 100 kg (220 lb) | 614 | 6.8 |
| 110 kg (243 lb) | 676 | 7.5 |
| 120 kg (265 lb) | 737 | 8.2 |
SOURCE·2024 Adult Compendium of Physical Activities·REVIEWED JUL 2026
Questions
How many calories does 90 minutes of carpentry burn?
About 430 kcal for a 70 kg adult at MET 3.9. At 60 kg it is 369 kcal and at 100 kg it is 614 kcal.
Is 90 minutes of carpentry a good workout?
At MET 3.9 this is moderate activity. Adults are advised to accumulate 150 minutes of moderate or 75 minutes of vigorous activity a week, so 90 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.
