The honest verdict
Push-ups are a strength exercise first and a calorie burner second, and this calculator keeps both truths in view. At the defaults — 160 lb, 10 minutes, moderate effort — you burn 45.96 kcal, roughly the calories in half an apple. That is not a weight-loss workout on its own, but it is real energy, and it comes with upper-body strength that a treadmill never gives you. The lever that matters most is intensity: the same 10 minutes done vigorously at 8.0 MET burns about double the moderate figure. If calories are the goal, push-ups belong inside a bigger session; if strength is the goal, the calories are a bonus.
The worked example, line by line
Setup: 160 lb, 10 minutes, moderate (3.8 MET).
Line 1 — pounds to kilograms. 160 × 0.45359237 = 72.5748 kg. The MET formula needs kilograms, so this conversion comes first.
Line 2 — minutes to hours. 10 ÷ 60 = 0.16667 hours.
Line 3 — the MET formula. Calories = MET × kg × hours = 3.8 × 72.5748 × 0.16667 = 45.96 kcal. That is the default result, visible in the calculator before you touch a field.
Line 4 — the reps check. The secondary method says about 0.29 kcal per push-up at 150 lb, scaled by weight. At 160 lb that is 0.29 × (160 ÷ 150) = 0.309 kcal per rep — so 100 push-ups at 160 lb would be about 30.93 kcal by the reps method, in the same ballpark as a few minutes of moderate sets.
Branch A: 200 lb, 15 minutes, vigorous
A heavier, harder session: 200 lb is 90.7185 kg, and 15 minutes is 0.25 hours, so 8.0 × 90.7185 × 0.25 = 181.44 kcal. That is nearly four times the default — heavier body, longer session, and more than double the MET all stack in the same direction. Vigorous push-ups for 15 minutes straight is a serious effort, and the number reflects it.
Branch B: 10 minutes, moderate, at 120 lb
A lighter body at the same effort: 120 lb is 54.4311 kg, so 3.8 × 54.4311 × (10 ÷ 60) = 34.47 kcal. Same minutes, same MET, about 25% fewer calories than the 160 lb default — the MET formula scales exactly with body weight, so lighter people burn proportionally less doing the same work.
Branch C: 100 reps at 180 lb
Counted by reps instead of time: 0.29 kcal per rep at 150 lb scales to 0.29 × (180 ÷ 150) = 0.348 kcal per rep at 180 lb, so 100 reps = 34.80 kcal. If those 100 reps took you about 10 minutes with rests, the two methods agree nicely — the reps method is a cross-check, not a rival, and agreement between them is a good sign your inputs are honest.
Output · formula · meaning
| Output | Formula | What it means |
| Calories by time | MET × kg × hours | 45.96 kcal at the defaults — 3.8 × 72.5748 × 10 ÷ 60. |
| Calories by reps | 0.29 × (lb ÷ 150) × reps | 34.80 kcal for 100 reps at 180 lb — the secondary, counted method. |
| Weight in kg | lb × 0.45359237 | 72.5748 kg at 160 lb — the conversion the MET formula needs. |
| MET values | moderate 3.8, vigorous 8.0 | Compendium of Physical Activities values for push-ups; vigorous is more than double moderate. |
| Per-rep cost | ≈0.29 kcal at 150 lb, weight-scaled | A stated assumption, not a measurement — use it as an estimate, not a lab result. |
Who uses this
- The home-workout tracker: does 10 minutes of push-up sets each morning, logs 45.96 kcal, and stops pretending a bodyweight circuit alone covers a day of eating.
- The challenge joiner: signs up for 100 push-ups a day, checks branch C, and learns the challenge burns about 34.80 kcal at 180 lb — the prize is strength, not the calorie count.
- The calorie-budget dieter: adds push-ups to a walk and a run, uses the MET figure to keep the day's exercise total honest instead of guessing a round 200 kcal.
- The coach: shows a client that vigorous sets (8.0 MET) burn more than twice the moderate rate, and uses that gap to justify shorter, harder sets when time is short.
Accuracy & limitations
MET values are population averages from the Compendium of Physical Activities, not measurements of your body: real burn varies with speed, form, rest between sets, range of motion, and fitness, easily by 20% or more either way. The vigorous 8.0 MET figure assumes continuous, high-effort push-ups; sets broken up by long rests burn closer to the moderate figure even if the reps feel hard. The per-rep figure (≈0.29 kcal at 150 lb, scaled linearly with weight) is a plainly stated assumption used for the secondary method — it is not a laboratory measurement, and it ignores the rest periods that dominate a real set. General information only — not medical or training advice. Error policy: weights at or below 0 or above 1,000 lb, minutes at or below 0, negative reps, and entering neither minutes nor reps are reported as errors rather than modeled.
Cite this calculatorBright Side Kit. “Push-Ups Calorie Calculator: Burn by Time & Reps 2026.” brightoolbox.com, 2026.Bright Side Kit. "Push-Ups Calorie Calculator: Burn by Time & Reps 2026." https://brightoolbox.com/push-ups-calorie-calculator/ Accessed October 24, 2026.
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