Calorie Deficit Calculator

Our calorie deficit calculator is here to help you achieve your weight loss goals in a safe and sustainable way.

By taking into account factors such as age, gender, height, weight, and physical activity level, our calculator provides you with an estimated maintenance calorie intake and an estimated calorie deficit based on your weight loss goals.

Calculate Your Calorie Deficit

Enter your information to calculate your calorie deficit:







Your daily calorie deficit is: calories

What Is Calorie Deficit?

A calorie deficit is a term that explains the difference between your total energy expenditure and calorie intake.

Simply, a calorie deficit is when you take in fewer calories than you burn off through physical activity and daily life processes, such as digestion and circulation.

It is helpful to use a calorie deficit calculator to determine the exact number of calories we need to maintain our current weight and the number of calories we should subtract to create a deficit.

The idea behind a caloric deficit is that when you eat more than you need daily, your body stores the extra calories as fat to save them for later use.

If you consume fewer calories than needed each day and pair that with physical activity that requires more energy than usual, this should trigger a release of stored fats to provide additional power.

In other words, by creating a calorie deficit every day, your body will be forced to burn fat stores instead of consuming energy food.

How is calorie deficit calculated?

A calorie deficit is calculated by determining the number of calories we need to maintain our current weight and then subtracting a certain number of calories from that amount.

This number can vary based on age, gender, height, weight, and physical activity level.

To calculate a calorie deficit, you can use the following formula:

Calorie deficit = Maintenance calories – A calorie deficit

Or, Calorie deficit = Total calorie in – Total calorie out

Maintenance calories are the number of calories we need to maintain our current weight.

It is the total number of calories we want to subtract from our maintenance calories to create a calorie deficit. This can vary based on how much weight we want to lose and how quickly we want to lose it.

For example, a 500-calorie deficit per day may lead to a weight loss of 1 pound per week.

Calorie Deficit Calculator

Calculation Method

Our deficit calculator is a tool that helps you to determine the number of calories you need to maintain your current weight and the amount of calories you should subtract to create a calorie deficit for weight loss.

To use a calorie deficit calculator, you can follow these steps:

  1. Go to the Allfit Well website which offers a calorie deficit calculator.
  2. Enter your information, including your age, gender, height, weight, and physical activity level.
  3. The calculator will then provide you with an estimated maintenance calorie intake, which is the number of calories you need to maintain your current weight.
  4. From there, you can input the amount of weight you want to lose and the number of weeks you want to lose it. The calculator will then provide you with an estimated calorie deficit based on this information.

Using our calorie deficit calculator can be convenient and accurate, as it takes into account multiple factors that can affect calorie deficit such as age, gender, height, weight, and physical activity level.

Additionally, using a calorie deficit calculator can save you time and effort, as you do not have to manually calculate your calorie needs and deficit.

Calorie Deficit Calculator

Calorie deficit is important for weight loss because it causes an energy imbalance in the body, which causes it to burn stored energy sources like fat.

By using our calorie deficit calculator and making lifestyle changes that are sustainable in the long term, we can work towards a healthy and balanced weight loss journey.

John Harvey
John Harvey

John Harvey M.D., M.P.H. is the Director of VA Greater Los Angeles Healthcare System and a Professor at T.H Chan School of Public Health . As an Internal Medicine physician at Boston Healthcare System, I aim to improve healthcare quality and costs through policy-focused research. I earned my M.D. and M.P.H. from Harvard, and completed fellowships at University of California, San Francisco.