Calories burned
carrying heavy loads
588 kcal / hour Carrying heavy loads burns approximately 588 calories per hour for a 70 kg (154 lb) adult, and 294 calories in 30 minutes. Across the normal adult weight range the hourly figure runs from about 420 to 1,008 kcal.
It carries a MET value of 8 in the 2024 Adult Compendium of Physical Activities.
SOURCE·2024 Adult Compendium of Physical Activities·REVIEWED JUL 2026
MET 8 × 3.5 × 70 kg ÷ 200 = 9.80 kcal/min × 30 min = 294 kcal
Source—2024 Adult Compendium of Physical Activities—code 11050—ACSM energy equation—retrieved 2026-07
How this is worked out
- Take the MET value for carrying heavy loads from the 2024 Adult Compendium of Physical Activities: MET 8.
- 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 8 × 3.5 × 70 ÷ 200 = 9.80 kcal/min 9.80 × 60 min = 588 kcal
Calories burned carrying heavy loads by body weight
Energy cost scales with the mass you move, so body weight changes the answer more than anything else. Full Compendium description: "Carrying heavy loads (e.g., bricks, tools)".
| Body weight | 15 min | 30 min | 45 min | 60 min | 90 min |
|---|---|---|---|---|---|
| 50 kg (110 lb) | 105 | 210 | 315 | 420 | 630 |
| 60 kg (132 lb) | 126 | 252 | 378 | 504 | 756 |
| 70 kg (154 lb) | 147 | 294 | 441 | 588 | 882 |
| 80 kg (176 lb) | 168 | 336 | 504 | 672 | 1,008 |
| 90 kg (198 lb) | 189 | 378 | 567 | 756 | 1,134 |
| 100 kg (220 lb) | 210 | 420 | 630 | 840 | 1,260 |
| 110 kg (243 lb) | 231 | 462 | 693 | 924 | 1,386 |
| 120 kg (265 lb) | 252 | 504 | 756 | 1,008 | 1,512 |
Figures in kilocalories (the "calories" on food labels). The highlighted row is the 70 kg reference adult used in the headline figure; the highlighted column is one hour.
SOURCE·2024 Adult Compendium of Physical Activities·REVIEWED JUL 2026
What 588 calories an hour actually means
At MET 8, carrying heavy loads counts as vigorous activity — it uses about 8 times the energy your body burns sitting still. For a 70 kg adult that works out to roughly 10 kcal per minute, or 588 kcal across a full hour.
Within occupation, that ranks 4th of 72 activities by energy cost, a little below mining (MET 8.5) and above using heavy tools such as shovel (MET 7.8).
Put differently: one hour of carrying heavy loads costs about the same energy as 120 minutes of ordinary walking.
On the food side, a can of cola (about 140 kcal) takes roughly 14 minutes of carrying heavy loads to offset at that body weight. That framing is useful for scale, but it is worth saying plainly: exercise and diet are not a ledger that cancels neatly, and appetite tends to rise with activity.
A number this clean is a model. It does not know your gradient, your gear, the wind, or how hard you were actually trying.
Questions
How many calories does carrying heavy loads burn per hour?
About 588 kcal per hour for a 70 kg (154 lb) adult, using the Compendium MET value of 8. A 90 kg adult burns closer to 756 kcal in the same hour, because energy cost scales almost directly with body mass.
How many calories does 30 minutes of carrying heavy loads burn?
Roughly 294 kcal at 70 kg, 252 kcal at 60 kg and 420 kcal at 100 kg. Halving the time halves the calories — the relationship is linear.
What is the MET value of carrying heavy loads?
8. One MET is the energy you use sitting quietly, so MET 8 means 8 times that rate.
Is this an exact number of calories?
No, and no calculator can give you one. MET values are population averages measured in laboratory conditions; your own figure varies with fitness, technique, terrain, temperature and body composition. Treat these numbers as a solid estimate for planning, not a precise measurement — and treat any device or site claiming three-digit precision with suspicion.
MET value from the 2024 Adult Compendium of Physical Activities (activity code 11050). Calories computed as MET × 3.5 × weight kg ÷ 200 per minute. General information only — not medical, fitness or nutrition advice. Calorie figures are population estimates and vary between individuals.
