Treadmill calories burned by speed and incline
Calories burned in 30 minutes by a 160-pound person. Speeds up to 4 mph are walking; 5 mph and up are running. A heavier person burns more and a lighter person less, roughly in proportion to body weight.
| Speed | 0% incline | 5% incline | 10% incline | 15% incline |
|---|---|---|---|---|
| 1 mph60:00 /mi | 88 | 107 | 132 | 158 |
| 2 mph30:00 /mi | 107 | 145 | 195 | 248 |
| 2.5 mph24:00 /mi | 120 | 168 | 230 | 296 |
| 3 mph20:00 /mi | 138 | 195 | 270 | 348 |
| 3.5 mph17:09 /mi | 163 | 230 | 317 | 409 |
| 4 mph15:00 /mi | 199 | 275 | 375 | 480 |
| 5 mph12:00 /mi | 330 | 396 | 461 | 527 |
| 6 mph10:00 /mi | 388 | 467 | 546 | 625 |
| 7 mph8:34 /mi | 447 | 539 | 631 | 723 |
| 8 mph7:30 /mi | 505 | 610 | 716 | 821 |
Calories burned walking on a treadmill by weight
Walking at 3 mph with no incline:
| Body weight | 30 minutes | 1 hour | Per mile |
|---|---|---|---|
| 120 lb (54 kg) | 103 | 207 | 69 |
| 140 lb (64 kg) | 121 | 241 | 80 |
| 160 lb (73 kg) | 138 | 276 | 92 |
| 180 lb (82 kg) | 155 | 310 | 103 |
| 200 lb (91 kg) | 172 | 345 | 115 |
| 220 lb (100 kg) | 190 | 379 | 126 |
| 250 lb (113 kg) | 216 | 431 | 144 |
How much does incline add?
Incline is the cheapest way to burn more without going faster. At 3 mph, a 160-pound person burns about 276 calories an hour on the flat and about 603 at a 12% incline, roughly 120% more. That 12% incline, 3 mph, 30-minute setting is the popular "12-3-30" workout:
- 130 lb: about 245 calories per 12-3-30 session
- 160 lb: about 302 calories per 12-3-30 session
- 190 lb: about 358 calories per 12-3-30 session
- 220 lb: about 415 calories per 12-3-30 session
Walking pad and under-desk treadmill calories
Walking pads run slower than most treadmills, often 1 to 3 mph while you work. Calories per hour for a 160-pound person on the flat:
| Speed | Per hour | Above resting |
|---|---|---|
| 1 mph | 176 | 100 |
| 1.5 mph | 195 | 119 |
| 2 mph | 215 | 139 |
| 2.5 mph | 240 | 164 |
| 3 mph | 276 | 200 |
| 3.5 mph | 327 | 251 |
For comparison, in a study of office workers with obesity (86 kg on average), walking at a self-chosen 1.1 mph burned a measured 191 calories an hour, against 72 sitting. This calculator gives 213 for the same weight and speed, about 12% higher. Many calculators use the ACSM walking formula here, but it is only rated for 1.9 to 3.7 mph and underestimates slow walking; this calculator uses a formula built to cover everything from standing still up to 4.4 mph.
Looking for one? See the best walking pads and under-desk treadmills.
Are treadmill calorie counters accurate?
There is little published testing of treadmill consoles themselves. The closest controlled study tested an elliptical left in quick-start mode, without the user's weight entered: it overstated calories by about 100 per 30 minutes. If your treadmill asks for your weight, enter it.
How you walk matters too. In one study, gripping the handrails cut oxygen use, which tracks calories burned, by roughly 15 to 21% compared with swinging your arms freely; resting your hands lightly on the rails cut it by 4 to 8%. Any formula, including this one, assumes you are not holding on.
Formulas have error as well. In an independent comparison, the walking formula used here had a typical error of about 7%, the same as the ACSM formula at normal walking speeds and grades up to 6%. Treat any single number as an estimate, not a measurement.
Treadmill vs running outside: the 1% incline rule
Running on a treadmill, you don't push against air resistance. In a study of trained runners, a 1% incline matched the energy cost of road running at about 6.5 to 11 mph. At the slowest speeds tested, road running cost no more than the flat treadmill, and the study did not test walking.
How this calculator works
- Walking uses the equation from Looney and colleagues (2019), which predicts energy use from speed and grade. It was validated at speeds up to 4.4 mph and on grades from −40% to +45%.
- Running uses the American College of Sports Medicine (ACSM) running equation, which is most accurate above 5 mph. On the flat it works out to about 1 calorie per kilogram per kilometer, in line with measurements of trained runners.
- Above resting subtracts what you would have burned sitting still for the same time (1 MET), which is the extra you earn from the workout.
To turn treadmill speed into minutes per mile or race finish times, use the treadmill pace chart. Counting steps instead of minutes? The steps to miles calculator converts a step count into distance and calories.
Shopping for a machine? See our treadmill picks.
Sources
- Looney DP et al. (2019). Estimating energy expenditure during level, uphill, and downhill walking. Med Sci Sports Exerc 51(9):1954–1960. doi.org/10.1249/MSS.0000000000002002
- Ludlow LW, Weyand PG (2016). Energy expenditure during level human walking: seeking a simple and accurate predictive solution. J Appl Physiol 120(5):481–494. doi.org/10.1152/japplphysiol.00864.2015
- Moore CC et al. (2021). Development of a cadence-based metabolic equation for walking. Med Sci Sports Exerc 53(1):165–173. doi.org/10.1249/MSS.0000000000002430
- Bernard TE et al. (2024). Ind Health 62(5):287–294 (walking metabolic rate equations compared). doi.org/10.2486/indhealth.2024-0015
- Cox RH et al. (2011). J Phys Act Health 8:332 (walking at 1 mph at a workstation). doi.org/10.1123/jpah.8.3.332
- Levine JA, Miller JM (2007). Br J Sports Med 41:558 (treadmill desk energy expenditure). doi.org/10.1136/bjsm.2006.032755
- Berling J et al. (2006). J Cardiopulm Rehabil 26:391 (handrail support during treadmill exercise). doi.org/10.1097/00008483-200611000-00009
- Glave AP et al. (2018). Exercise Medicine 2:8 (elliptical calorie display accuracy). doi.org/10.26644/em.2018.008
- Jones AM, Doust JH (1996). J Sports Sci 14(4):321–327 (treadmill grade and outdoor running). doi.org/10.1080/02640419608727717
- Mayhew JL (1977). Br J Sports Med 11:116 (energy cost of running in trained runners). pmc.ncbi.nlm.nih.gov/articles/PMC1859586/