Carrying Boxes MET Value: The Science Behind Moving Calories
The MET value for carrying boxes ranges from 4.0 (light, flat surface) to 4.5 (stairs) according to the Ainsworth Compendium. Learn how MET values work and how to calculate your calorie burn.
The MET value for carrying boxes is 4.0 for light carrying on flat surfaces, and 4.5 for carrying boxes up and down stairs, according to the Ainsworth Compendium of Physical Activities (2011). Moving heavy furniture has a MET value of 5.5.
Use the Moving House Calorie Calculator to calculate your exact calorie burn from any of these carrying activities.
What Is a MET Value?
MET stands for Metabolic Equivalent of Task. It quantifies how much energy an activity requires relative to sitting at rest.
- MET 1.0 = sitting quietly (your baseline resting metabolic rate)
- MET 2.0 = an activity that burns twice as much energy as resting
- MET 4.0 = light box carrying — burns 4× more energy than resting
- MET 5.5 = heavy furniture moving — burns 5.5× more energy than resting
The MET scale was developed to standardise how we measure and compare the energy cost of different physical activities. It's the foundation of the Ainsworth Compendium, which catalogues MET values for over 800 activities.
Official MET Values for Carrying and Moving Activities
The following values are sourced from the Ainsworth Compendium of Physical Activities:
Ainsworth BE, Haskell WL, Herrmann SD, et al. 2011 Compendium of Physical Activities: a second update of codes and MET values. Med Sci Sports Exerc. 2011;43(8):1575-1581.
| Activity | MET Value | Intensity Category |
|---|---|---|
| Standing (light work) | 2.0–2.5 | Light |
| Packing/unpacking boxes (standing) | 2.5–3.0 | Light |
| Carrying light items (flat surface) | 4.0 | Moderate |
| Carrying boxes up/down stairs | 4.5 | Moderate–Vigorous |
| Heavy lifting / furniture moving | 5.5 | Vigorous |
| Manual labour, general | 4.0–5.5 | Moderate–Vigorous |
| Carrying heavy loads upstairs | 7.5–8.0 | Very Vigorous |
The MET value increases with:
- Load weight (heavier items = higher MET)
- Vertical displacement (stairs vs flat surface)
- Speed and frequency of movement
MET Comparison: Carrying vs Other Activities
To understand where carrying boxes fits in the broader spectrum of physical activity:
| Activity | MET Value | Intensity Level |
|---|---|---|
| Sitting at desk | 1.5 | Sedentary |
| Slow walking (4 km/h) | 2.8 | Light |
| Brisk walking (6 km/h) | 3.5 | Moderate |
| Light carrying (flat) | 4.0 | Moderate |
| Carrying up/down stairs | 4.5 | Moderate–Vigorous |
| Hiking (no pack, moderate) | 5.3 | Vigorous |
| Moving heavy furniture | 5.5 | Vigorous |
| Cycling (20 km/h) | 6.0 | Vigorous |
| Rucking (10 kg pack, flat) | 6.3 | Vigorous |
| Running (8 km/h) | 7.0 | Vigorous |
| Hiking with heavy pack (20 kg) | 7.8 | Very Vigorous |
Light box carrying sits between brisk walking and hiking in energy expenditure. Stair carrying is equivalent to a moderate hike. Heavy furniture moving approaches the intensity of a slow jog.
How Load Weight Affects MET
The Compendium's MET values for carrying are population averages that include typical load weights. In practice, the actual MET you experience depends heavily on how much you're carrying.
The relationship between load weight and MET is approximately linear:
| Load Weight (% of body weight) | Approx. MET Increase |
|---|---|
| No load (walking) | Baseline |
| 5–10% | +0.5–1.0 MET |
| 10–20% | +1.0–1.5 MET |
| 20–30% | +1.5–2.5 MET |
| 30%+ | +2.5–4.0 MET |
For a 70 kg person:
- Carrying a 10 kg box (~14% body weight) adds roughly 1.0 MET to their effort
- Carrying a 20 kg box (~29% body weight) adds roughly 2.0–2.5 MET
- Carrying a 40 kg sofa segment (~57% body weight) can push effective MET above 7.0
This is why the Compendium separates "light carrying" from "heavy lifting" — they're meaningfully different activities.
How to Calculate Your Calorie Burn from MET
The calorie formula is:
Calories = MET × Weight (kg) × Time (hours)
Example 1: 70 kg person, light carrying, 60 minutes
4.0 × 70 × 1.0 = 280 kcal
Example 2: 80 kg person, stair carrying, 45 minutes
4.5 × 80 × 0.75 = 270 kcal
Example 3: 75 kg person, heavy furniture, 2 hours
5.5 × 75 × 2.0 = 825 kcal
The formula works because MET is defined as kcal per kg body weight per hour. Multiplying MET by body weight gives you kcal per hour; multiplying by duration gives total kcal.
Calories Burned Carrying Boxes by Weight and Duration (MET 4.0)
For light carrying on flat surfaces:
| Body Weight | 20 min | 30 min | 45 min | 60 min | 90 min |
|---|---|---|---|---|---|
| 60 kg | 80 cal | 120 cal | 180 cal | 240 cal | 360 cal |
| 70 kg | 93 cal | 140 cal | 210 cal | 280 cal | 420 cal |
| 80 kg | 107 cal | 160 cal | 240 cal | 320 cal | 480 cal |
| 90 kg | 120 cal | 180 cal | 270 cal | 360 cal | 540 cal |
Calories Burned Carrying Boxes Up Stairs (MET 4.5)
| Body Weight | 20 min | 30 min | 45 min | 60 min | 90 min |
|---|---|---|---|---|---|
| 60 kg | 90 cal | 135 cal | 203 cal | 270 cal | 405 cal |
| 70 kg | 105 cal | 158 cal | 236 cal | 315 cal | 473 cal |
| 80 kg | 120 cal | 180 cal | 270 cal | 360 cal | 540 cal |
| 90 kg | 135 cal | 203 cal | 304 cal | 405 cal | 608 cal |
Why the Compendium's MET Values Are Averages (And What That Means for You)
The Compendium's MET values are derived from group studies of adult participants performing standardised activities. Your individual MET will vary based on:
Fitness level: A physically fit person performing the same carrying task as a sedentary person may experience a lower relative cardiovascular strain — a lower effective MET — because their cardiovascular system is more efficient.
Body composition: Muscle mass affects your resting metabolic rate. The MET formula uses total body weight, which works well for average body compositions but may slightly over- or under-estimate for very lean or high body-fat individuals.
Technique: An experienced manual labourer uses more efficient movement patterns than someone unfamiliar with heavy carrying. Efficiency reduces calorie burn per trip, but experienced workers can also sustain higher output for longer.
Actual load weight: As noted above, the Compendium's values represent typical loads. If you are routinely carrying boxes at the extreme end of the weight range, your actual MET will be higher than the reference value.
Terrain: Moving over thick carpet, up curved stairs, or across uneven ground increases effort compared to smooth hard floors and straight staircases.
The practical implication: the MET formula gives you an estimate accurate to ±15–25%. For a moving day calorie estimate, it's a solid guide — not a precise measurement.
Frequently Asked Questions
What is the MET value for carrying boxes?
The MET value for carrying boxes on flat surfaces is 4.0. For carrying boxes up and down stairs, it is 4.5. These values are sourced from the Ainsworth Compendium of Physical Activities (2011).
What is the MET value for moving furniture?
Moving heavy furniture has a MET value of 5.5 according to the Ainsworth Compendium. This applies to moving sofas, wardrobes, appliances, and other bulky heavy items.
How does load weight affect MET when carrying?
Heavier loads increase effective MET because more muscular force is required per step. The Compendium's values represent typical load weights — carrying boxes above 20 kg will push your effective MET above the listed 4.0 value.
Is carrying boxes aerobic exercise?
Yes. At MET 4.0–4.5, carrying boxes qualifies as moderate-intensity aerobic exercise by most definitions (MET 3.0–6.0 = moderate). Carrying up stairs approaches the vigorous threshold (MET ≥ 6.0).
Related Tools and Guides
- Moving House Calorie Calculator — Instant calorie estimate by activity type and duration
- Moving Boxes Calorie Formula — Full formula guide with worked examples
- How Many Calories Does Moving House Burn? — Full-day breakdown
- Moving Furniture Calories Burned — Tables and muscle breakdown for heavy lifting
- Rucking Calorie Calculator — Carrying weight over distance outdoors
- Hiking Calorie Calculator — Similar moderate-to-vigorous sustained effort