Introduction
Exercise is an essential part of leading a healthy lifestyle and maintaining overall wellness. With the right combination of physical activity and nutritious eating habits, you can reach and maintain your desired weight. But when it comes to exercising, many people are curious about how many calories they burn while working out.
Calories are units of energy that we get from food and drinks. When we exercise, our bodies use up these calories to fuel our movements. The amount of calories burned during exercise depends on various factors, such as the intensity and duration of the workout, as well as your body composition.
In this article, we’ll explore how many calories you burn working out. We’ll look at the different types of exercises, how to estimate the number of calories burned, and factors that can influence your calorie burn.

Calculating the Calories Burned During Different Types of Workouts
The type of exercise you do can affect how many calories you burn. Here are some of the most common types of workouts and the estimated number of calories burned in one hour:
Aerobic Exercises
Aerobic exercises, also known as cardiovascular exercises, are activities that raise your heart rate and breathing rate. Examples include running, cycling, swimming, and walking. According to Harvard Health Publishing, a 125-pound person burns approximately 240 to 355 calories per hour doing aerobic exercises.
Strength Training
Strength training, also known as resistance training, involves using weights or other forms of resistance to build muscle mass. According to the American Council on Exercise (ACE), a 125-pound person can burn between 90 to 130 calories in 30 minutes of strength training.
High-Intensity Interval Training (HIIT)
High-intensity interval training (HIIT) is a type of exercise that alternates between short bursts of intense activity and brief periods of rest or low-intensity activity. According to ACE, a 125-pound person can burn up to 200 calories in just 20 minutes of HIIT.

An Overview of How Many Calories You Can Expect to Burn from Exercise
Estimating Calories Burned During Exercise
When estimating the number of calories you burn during exercise, it’s important to take into account the intensity and duration of your workout. For example, if you’re doing a vigorous aerobic activity such as running, you may burn more calories than if you were doing a low-intensity activity such as yoga.
It’s also important to consider the type of exercise you’re doing. For example, a high-intensity interval training (HIIT) workout will likely burn more calories than a steady-state aerobic workout.
Factors Affecting the Amount of Calories Burned
Your body composition is another factor that can affect how many calories you burn during exercise. People with higher levels of body fat tend to burn fewer calories than those with lower levels of body fat. Additionally, your age, gender, and fitness level can also affect the number of calories you burn during exercise.

The Science Behind Calculating How Many Calories You Burn During Exercise
To understand how many calories you burn during exercise, it’s important to understand the science behind it. Your body burns calories in order to fuel its daily activities, including exercise. There are three main components that determine the number of calories you burn during exercise: basal metabolic rate (BMR), resting metabolic rate (RMR), and activity level.
Basal Metabolic Rate (BMR)
Your basal metabolic rate (BMR) is the minimum amount of energy your body needs to function at rest. This includes activities such as breathing, digesting food, and circulating blood. According to the National Institutes of Health (NIH), your BMR accounts for around 60 to 75 percent of the total number of calories you burn each day.
Resting Metabolic Rate (RMR)
Your resting metabolic rate (RMR) is the amount of energy your body needs to perform basic functions while at rest. This includes activities such as digesting food, circulating blood, and breathing. According to the NIH, your RMR accounts for around 10 to 25 percent of the total number of calories you burn each day.
Activity Level
Your activity level is the amount of energy your body needs to perform everyday activities, such as moving around, lifting objects, and exercise. According to the NIH, your activity level accounts for around 15 to 30 percent of the total number of calories you burn each day.
A Guide to Estimating the Number of Calories Burned During Exercise
Use a Calorie Calculator
One of the easiest ways to estimate the number of calories you burn during exercise is to use a calorie calculator. These calculators take into account your age, gender, weight, and activity level to estimate the number of calories you burn during exercise. For more accurate results, you can also enter in the type and duration of the workout.
Track Your Progress
Tracking your progress is another way to estimate the number of calories you burn during exercise. To do this, you’ll need to track the amount of time you spend exercising, as well as the intensity of the workout. You can also use a heart rate monitor or fitness tracker to help you keep track of your progress.
Factors that Influence the Amount of Calories Burned During Exercise
There are several factors that can influence the number of calories you burn during exercise. Here are some of the most important ones:
Body Size and Composition
Your body size and composition can affect how many calories you burn during exercise. People with larger bodies generally burn more calories during exercise than those with smaller bodies. Additionally, people with higher levels of body fat tend to burn fewer calories than those with lower levels of body fat.
Age and Gender
Your age and gender can also affect the number of calories you burn during exercise. Generally, younger people burn more calories than older people, and men typically burn more calories than women.
Intensity of Exercise
Finally, the intensity of the exercise can affect the number of calories you burn. Generally, higher intensity exercises such as running or HIIT workouts burn more calories than lower intensity exercises such as walking or yoga.
Conclusion
Exercise is an important part of staying healthy and fit. Knowing how many calories you burn during exercise can help you reach and maintain your desired weight. In this article, we explored how many calories you burn working out. We looked at the different types of exercises and how to estimate the number of calories burned, as well as factors that can influence your calorie burn.
By understanding the science behind calculating how many calories you burn during exercise, as well as using a calorie calculator and tracking your progress, you can get a better idea of how many calories you’re burning during your workouts. Additionally, understanding the factors that can influence your calorie burn can help you make more informed decisions about your exercise routine.
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