Running Calorie Burn Calculator Formula
Understand the math behind the running calorie burn calculator. Each variable explained with a worked example.
Formulas Used
Calories Burned
calories_burned = round(met_value * weight_kg * duration_hours)Calories per Mile
calories_per_mile = round(met_value * weight_kg * duration_hours / distance_miles)Total Duration
duration_min = round(distance_miles * pace_min_per_mile)MET Value
met_display = round(met_value * 10) / 10Variables
| Variable | Description | Default |
|---|---|---|
weight_lbs | Body Weight(lbs) | 160 |
distance_miles | Distance(miles) | 3 |
pace_min_per_mile | Pace(min/mile) | 9 |
weight_kg | Derived value= weight_lbs * 0.453592 | calculated |
duration_hours | Derived value= distance_miles * pace_min_per_mile / 60 | calculated |
met_value | Derived value= 15.5 - 0.65 * pace_min_per_mile | calculated |
How It Works
How Running Calorie Burn Is Estimated
Calories burned depend on your weight, speed, and duration.
Formula
Calories = MET x Weight (kg) x Duration (hours)
The MET (Metabolic Equivalent of Task) for running varies with pace. A rough linear model:
MET = 15.5 - 0.65 x Pace (min/mile)
Faster paces have higher MET values, meaning more calories per minute. However, slower runners burn more total calories per mile because they are moving for longer.
Note
This is an estimate. Actual calorie burn varies with fitness level, terrain, temperature, and running efficiency.
Worked Example
A 160 lb runner covers 3 miles at a 9:00/mile pace.
- 01Weight in kg = 160 * 0.4536 = 72.57 kg
- 02Duration = 3 * 9 / 60 = 0.45 hours
- 03MET = 15.5 - 0.65 * 9 = 9.65
- 04Calories = 9.65 * 72.57 * 0.45 = 315 kcal
- 05Calories per mile = 315 / 3 = 105 kcal/mile
Frequently Asked Questions
Does running burn more calories than walking?
Per minute, yes. Per mile, the difference is smaller because walkers take longer. Running burns roughly 80-120 calories per mile depending on weight.
Do heavier runners burn more calories?
Yes. Calorie burn is directly proportional to body weight. A 200 lb runner burns about 25% more than a 160 lb runner at the same pace.
Does running faster burn more calories?
Per minute, faster running burns more. Per mile, the difference is small. The biggest factor in total calories is distance covered and body weight.
Learn More
Guide
How to Calculate Running Pace - A Complete Guide for Runners
Learn how to calculate running pace in minutes per mile or kilometer. Covers pace formulas, race pacing strategies, treadmill conversions, and training zones.
Ready to run the numbers?
Open Running Calorie Burn Calculator