Treadmill calories calculator with incline
It estimates oxygen use from your speed and incline and converts it to calories, so you can see what raising the incline does.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter activity, speed, incline, weight and duration.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
ACSM walking: VO2 = 0.1 × S + 1.8 × S × G + 3.5. Running: VO2 = 0.2 × S + 0.9 × S × G + 3.5, with S in m/min and G the grade as a fraction. kcal/min = VO2 × weight ÷ 1000 × 5.
Example
Inputs: Activity = Walking, Speed = 6 km/h, Incline = 10 %, Weight = 75 kg, Duration = 40 minutes. Result: Calories burned: 473 kcal; Calories per minute: 11.81 kcal; Oxygen uptake (VO2): 31.5 mL/kg/min.
Limits and caveats
- The walking equation fits about 3 to 6 km/h and the running equation speeds above 8 km/h.
- It assumes you do not hold the handrails, which lowers the real burn.
- It uses 5 kcal per liter of oxygen, a common approximation.
Questions about this tool
How much does incline add to calorie burn?
Walking at 5 km/h, a 5% incline raises oxygen use from about 11.8 to 19.3, an increase of roughly 63%.
What are the ACSM equations?
Metabolic equations from the American College of Sports Medicine that estimate oxygen use from speed and grade for walking and running.
Walking or running between 6 and 8 km/h?
Pick what you actually do: if one foot is always on the ground it is walking; if there is a moment in the air it is running.