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Running Calories Burned

Estimate calories burned running based on pace, weight, and duration. Free running calories burned calculator for marathon training, race planning.

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Inputs that matter
Body Weight (lbs), Duration (minutes), Average Speed (mph)
Output to expect
Running Calories Burned
  • Check the units and required inputs before comparing results.
  • Keep the assumptions with a copied result so you can reproduce the calculation later.
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Reference & details

How it works

MET-Based Energy Expenditure

Metabolic Equivalent of Task (MET) expresses exercise intensity relative to resting metabolism. One MET equals roughly 3.5 mL O₂/kg/min. Multiply MET by body weight in kg and duration in hours to estimate kilocalories burned.

Calories = MET × Weight (kg) × Duration (hr)

Pace-to-MET Conversion

Running MET values increase with speed. Jogging at 5 mph (12 min/mile) uses MET 8.0; running at 7 mph (~8:34/mile) uses MET 11.5. Faster paces above 10 mph can exceed MET 14.

5 mph → MET 8.0 | 7 mph → MET 11.5

Net vs Gross Calorie Burn

This calculator estimates gross energy expenditure during the activity. Net calories above resting metabolism are roughly 0.9 × gross for moderate running, since you would burn ~1 kcal/kg/hr at rest regardless.

Net ≈ Gross − (1 kcal/kg/hr × Duration)

Updated: July 2026

Example Scenarios

Recreational runner completing a 2.5-mile easy run at conversational pace.

Weight: 70 kg (154 lb)Pace: 5 mph (MET 8.0)Duration: 30 min (0.5 hr)

~280 kcal gross burn

Training run at threshold pace before a half marathon.

Weight: 65 kg (143 lb)Pace: 7 mph (MET 11.5)Duration: 45 min (0.75 hr)

~560 kcal gross burn

Sunday long run at moderate aerobic pace for marathon preparation.

Weight: 80 kg (176 lb)Pace: 6 mph (MET 10.0)Duration: 90 min (1.5 hr)

~1,200 kcal gross burn

Common Mistakes to Avoid

Ignoring body weight in the calculation

Calorie burn scales linearly with mass. A 90 kg runner burns ~29% more calories than a 70 kg runner at the same pace and duration. Always enter your actual weight for accurate estimates.

Confusing gross burn with net calories for eating back

Fitness trackers and MET formulas report gross expenditure. You would have burned ~70 kcal sitting for 30 minutes anyway, so net extra burn is lower. Do not eat back the full gross estimate unless accounting for total daily energy balance.

Using walking MET values for running pace

Running MET starts at 8.0 for 5 mph, while brisk walking is only MET 4.3–5.0. Using walking values for a run underestimates burn by nearly half.

FAQ

MET-based estimates are typically within 10–20% for steady-state running on flat terrain. Individual variation in running economy, age, sex, and terrain can shift results. Heart rate and power-based methods add precision but require additional equipment.

Faster paces burn more calories per minute but you cover the same distance in less time. For a fixed distance, faster running often burns similar total calories because higher MET is offset by shorter duration, though very fast paces can increase oxygen debt slightly.

Excess post-exercise oxygen consumption (EPOC) is the elevated metabolism after hard efforts. High-intensity running may add 6–15% to total calorie cost over several hours. Standard MET calculations do not include EPOC — add 5–10% for interval or tempo sessions.

Running uphill increases MET substantially — a 5% grade can add 1–2 MET. This calculator assumes flat terrain. For hills, increase MET by roughly 0.5–1.0 per 5% grade or use a treadmill incline adjustment.

If maintaining weight, yes — your total daily expenditure includes exercise. During fat loss, eat back 50–75% of estimated exercise calories to avoid overcompensating, since trackers and formulas tend to overestimate burn.

About Running Calories Burned

Estimate how many calories you burn during a run using the Compendium of Physical Activities MET values scaled to your body weight and duration. Faster paces carry higher MET scores, so a 7 mph tempo run burns significantly more per minute than an easy 5 mph jog.