There are many reasons to go for a run. If you’re like any of my clients, you might focus on improving your heart rate, aiming for a specific mileage, or maybe even relaxation after a long day at the office. Another popular goal of running is to get yourself more active while managing or changing your body weight.

Timing a run or measuring your distance isn’t particularly hard — you just need the treadmill, for example — but even with a fitness tracker, the number of calories burned during a run is a bit tougher to nail down. Energy expenditure is one of the most important equations for your body composition — so how many calories are burned running a mile?

How Many Calories Do You Burn Running a Mile?

People’s energy expenditure — how much energy, or “calories,” they’re using at any given time — depends on a lot of factors. Things like age, fitness level, weight, and running speed all impact how many calories you’re burning.

Someone running slowly, for example, will likely burn fewer calories than a similar person running faster. Why? Because going fast at a high intensity takes more energy than going slowly during your cardio workouts.

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However, your physical activity levels and running pace aren’t the whole story. Everyone’s body is different, so everyone’s got different metrics to attend to. 

For example, a 140-pound person and a 180-pound person may burn calories at a different pace on the same run. Generally speaking, a person weighing more will burn more calories — use more energy — than a person weighing less.

Still, there are some averages and trends we can look for when trying to figure out a ballpark estimate for how many calories you might burn during a run.

One study from California State University aimed to measure the calories burned during a one-mile run compared to a walk. People with an average fitness level were recruited to make the comparison. (1)

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It was found that running a mile burned on average about 115 calories compared to roughly 89 calories for walking. It should be noted that there was a degree of variability between participants, as the average running calories had a range of 115 calories plus or minus 24 calories. (1)

Another interesting note is the amount of calories burned during the recovery period afterward. Seemingly because of the increased intensity during running compared to walking, more calories were also burned after the fact. Running, for example, burned on average nearly 45 additional calories while resting compared to just 22 calories post-walk. (1)

What Is a Calorie?

A calorie is a unit of measurement for energy like degrees Fahrenheit are a unit of measure for temperature. Specifically, a calorie is the amount of energy required to raise the temperature of one liter of water by one degree Celsius. This means that more calorically dense foods would therefore provide more energy

What Factors Influence Calorie Burning During a Run?

Several unique factors from person to person influence how many calories are burned during a run. 

• Age: Increased age tends to be associated with slowly decreased energy expenditure, with older individuals burning less on average than younger individuals.
• Gender: Cis men may burn more calories on average than cis women due to several reasons such as body size or body composition. Hormone levels, including hormone replacement therapy for trans and nonbinary athletes, may also impact this.
• Weight: Body mass plays a role in calorie expenditure by adding physical resistance during our runs or more active tissue at play. In general, people who weigh more tend to burn more calories than people who weigh less.
• Terrain: Terrain such as hills or slopes affect how challenging the run is, adding calorie burn along with them.
• Pace: Running at an increased pace needs a greater calorie burn than running at a slower pace in the same amount of time because it takes more energy. More strides during our run by using a faster pace results in more energy consumed.
• Running Technique: Running technique is a bit of a double-edged sword. Improved running technique means increased movement economy. As a result, the amount of energy we consume per run may decrease with improved skill.

Calorie Calculator

Although many factors affect the final total of calories burned during a mile run, these estimates can be a powerful tool in achieving your body composition goals. Treadmills often use calorie expenditure calculators that take into account our body weight to give a much more accurate guess.

But it’s not all about the calories — or energy — you’re using on the treadmill. It’s also about how many calories — aka, how much energy — you’re fueling your body with in the kitchen. 

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You’ll need to make sure that you’re fueling your runs with enough energy, so getting a general estimate of how many calories you need to consume each day can help you along. Using a calorie calculator like BarBend’s can help you balance your running with any goals of bulking up, losing weight or maintaining your current weight.