Calculator
What the Stairs Calorie Calculator does
Stairs Calorie Calculator: calculates Calories Burned, Burn Rate (kcal/hour) and MET Used from Your Weight, Duration and Intensity (MET). Example: your weight 70 kg, duration 30 minutes and intensity (MET) 8.8 gives calories burned 308.
The inputs are Your Weight, Duration and Intensity (MET); the output is Calories Burned, Burn Rate (kcal/hour) and MET Used. Adjust anything and the figures re-derive on the spot.
Most people who open the Stairs Calorie Calculator are anyone curious about a reading. Population formulas give you a starting point, not a verdict about your body.
The work is done by JavaScript already loaded in your browser, so your input never crosses the network.
The field reference, the method and a worked example using the default inputs follow the tool itself.
What do the Stairs Calorie Calculator fields mean?
The Stairs Calorie Calculator uses 3 inputs. The page opens in a usable state: real values in, real answer out, ready to edit.
| Field | What to enter | Default |
|---|---|---|
| Your Weight | measured in kg; accepts 30 to 200 | 70 |
| Duration | measured in minutes; accepts 1 to 480 | 30 |
| Intensity (MET) | accepts 1 to 20 | 8.8 |
How does the Stairs Calorie Calculator work?
Each output is derived from the inputs above in a single pass; there is no hidden state carried between runs, so the same inputs always give the same calculation.
Each field is verified before use; failures are reported explicitly rather than swallowed.
Worked example
These are the values the Stairs Calorie Calculator loads by default, and the result it produces from them. Below is the same computation the tool performs on load, step by step.
| Your Weight | 70 kg |
|---|---|
| Duration | 30 minutes |
| Intensity (MET) | 8.8 |
| Calories Burned | 308 |
|---|---|
| Burn Rate (kcal/hour) | 616 |
| MET Used | 8.8 |
| Summary | About 308 kcal burned in 30 min of Climbing stairs. |
MET values for stair climbing
Stair climbing is one of the highest-MET everyday activities available without equipment. Running up stairs at MET 15 exceeds almost anything else in the compendium.
| Stair climbing | MET | 30 min at 70 kg |
|---|---|---|
| Walking down stairs | 3.5 | 129 kcal |
| Walking up stairs, slow | 4.0 | 147 kcal |
| Stair machine, general | 9.0 | 331 kcal |
| Walking up stairs, general | 8.0 | 294 kcal |
| Running up stairs | 15.0 | 551 kcal |
MET values are from the 2011 Compendium of Physical Activities (Ainsworth et al., Med Sci Sports Exerc 43(8):1575-81). One MET is the energy cost of sitting quietly, roughly 3.5 ml of oxygen per kilogram per minute.
What changes the number
- The work is close to pure vertical lifting, so it scales almost exactly with body mass, more so than any other common activity.
- A rough check: lifting your body one vertical metre costs about 0.0023 kcal per kilogram, before efficiency losses of roughly 75%.
- Descending costs about 40% of ascending, so a round trip is not double the climb.
- Because the intensity is so high, most people cannot sustain it long enough for the session total to be large.
These figures are population averages. Individual variation of 10–20% is normal, and the compendium itself is drawn from studies with modest sample sizes. Use the result to compare activities against each other, which it does well, rather than as an exact measure of what you personally burned.
How to use it
- Key in Your Weight in kg (30 to 200).
- Fill in Duration in minutes (1 to 480).
- Type Intensity (MET) (1 to 20).
- It runs on every change, so there is no moment where the screen is out of date.
- Read Calories Burned, Burn Rate (kcal/hour), MET Used and Summary in the results panel.
- Copy Link when you want to return to this exact configuration; Print when someone needs it on paper.
What this tool does not do
- Body composition, ethnicity and age all shift what a "normal" result means for an individual.
- Population-level formulas cannot account for medical conditions, medication or pregnancy.
- It handles the common case well and the unusual case literally.
- A plausible-looking answer from the wrong input is still the wrong answer: verify the fields first.
Frequently asked questions
Enter Your Weight in kg and Duration in minutes. Each field states its unit next to the input, and outputs are labelled the same way.
Your Weight accepts 30 to 200 kg. The range is enforced before the calculation runs, so a bad entry never reaches the formula.
With the values loaded when the page opens, calories burned comes out as 308. Adjust any field to see how much the answer depends on it.
No: there is no server involved. Close the tab and the values are gone.
No charge. Everything on the page is available without signing in.
The computation is exact. What it is computing is a population average, which is a different thing from a fact about you, so read the number as a prompt to ask a better question.