Stairs Calorie Calculator

Background.

Stairs are one of the hardest things most people meet on an ordinary day, because every step lifts the whole body against gravity. That is why three or four flights leave you breathing harder than a far longer walk on the flat, and why stairwells turn up in fitness tests and training sessions alike.

Oddly, the useful work is small. Raising 70 kg through a 3-metre storey takes about 2,060 joules, under half a kilocalorie. Muscle is an inefficient engine, though: most of the fuel it burns leaves the body as heat, so the real cost of a climb is several times the mechanical work, paid again with every step.

The estimate here works from time, not floors. It takes stair-climbing values from the 2024 Adult Compendium of Physical Activities — 4.5 METs for a slow climb, 6.8 for a general pace and 9.3 for a fast one, where one MET is the energy you use sitting quietly — and multiplies the chosen value by your weight and the minutes you spent going up. The result is gross energy in kilocalories, resting metabolism included.

Pace is the biggest lever: the fast value is about 2.07 times the slow one. Weight comes next, because the job is lifting your own body; at the general pace, each extra kilogram adds 0.119 kcal a minute.

The Compendium values describe continuous climbing. Time spent walking back down, pausing on landings or waiting for an elevator belongs outside the minutes you enter, and the formula has no way to account for unusually tall steps, a heavy load or a hot stairwell.

What is stairs calorie calculator?

A stair-climbing calorie estimate converts minutes spent going up stairs into energy, using a MET value: the activity's energy cost as a multiple of resting metabolism. The 2024 Adult Compendium of Physical Activities supplies the three values offered here, for slow, general and fast climbing. The answer is gross energy in kilocalories, the unit food labels call Calories, so it includes the resting energy you would have spent during those minutes anyway.

How to use this calculator.

1. 01Weight goes in kilograms: divide pounds by 2.205, so 165 lb becomes about 74.8 kg.
2. 02Enter only the minutes spent going up. In a stair workout, leave out the walk back down and any rests on landings; a workout timer left running will include both.
3. 03Choose slow for an unhurried climb you could talk through, general for a steady climb that has you breathing harder, and fast for the quickest pace you can keep up.
4. 04Read the kilocalories, and check the MET value shown beside them to confirm which pace was applied.

The formula.

kcal = MET × 3.5 × W ÷ 200 × t, with W the body weight in kilograms and t the minutes of climbing. MET × 3.5 gives oxygen use in millilitres per kilogram per minute, because one MET is defined as 3.5 mL/kg/min at rest; multiplying by W gives millilitres of oxygen per minute for the whole body. Dividing by 200 converts that to kilocalories, on the basis that each litre of oxygen used releases roughly 5 kcal. The answer is linear in every input: doubling the minutes or the weight doubles it, and moving from slow (4.5) to fast (9.3) multiplies it by about 2.07. Resting energy is not subtracted, and nothing in the formula knows about step height, number of floors or anything you are carrying.

A worked example.

Frequently asked questions.

References& sources.

1. [1]Adult Compendium of Physical Activities. 2024 Adult Compendium. Activity-specific metabolic equivalent codes. Retrieved 2026-08-06.
2. [2]U.S. National Institutes of Health. Health information current 2026. Evidence-based health measurement context. Retrieved 2026-08-06.
3. [3]U.S. National Library of Medicine. PubMed record current 2026-08-06. Indexed derivation and validation literature. Retrieved 2026-08-06.