Enter your height, weight, age, sex, and activity level into the calculator to determine the minimum calories you can eat.

Minimum Calories Formula

The formula for calculating the minimum amount of calories a person can eat is:

Calories per day = BMR * A – 1000

Where BMR is the calories you burn at rest, and A is an activity factor that estimates the number of calories you burn while active.

What is Minimum Calories?

Minimum calories refer to the lowest amount of energy required by an individual to sustain basic bodily functions and carry out daily activities. It represents the minimal intake of calories necessary for the body to function optimally.

Obtaining the minimum calories is crucial for several reasons. Firstly, it ensures the body receives an adequate fuel supply to perform essential physiological processes, such as maintaining body temperature, breathing, and circulating blood. These functions are vital for life and require a certain amount of energy to be carried out effectively.

Secondly, meeting the minimum calorie requirement is important for supporting physical activity and exercise. Calories provide the energy needed for movement, whether it is during day-to-day tasks or engaging in structured exercise routines. Insufficient calorie intake can lead to fatigue, weakness, and reduced physical performance, hindering overall productivity and quality of life.

Consuming the minimum calories is essential for maintaining overall health and well-being. A deficiency in calorie intake can lead to malnutrition, as the body lacks the necessary nutrients to support its functions. This can result in a compromised immune system, impaired growth and development (especially in children), and an increased risk of various health issues, such as weakened bones, hormonal imbalances, and organ dysfunction.

It is worth noting that the minimum calorie requirement varies among individuals, depending on factors such as age, sex, body composition, and activity level. These factors influence the basal metabolic rate (BMR), which is the amount of energy needed at rest. It is crucial to meet one’s specific minimum calorie needs to ensure optimal health and functionality.


What is the least amount of calories I can eat?

In general, the lowest possible amount of calories a person can eat is approximately 1000 less than what they burn per day. This is only sustainable for short periods of time. Adverse side effects will occur after longer than 1-2 months of this level of dieting if you are a normal weight human.

How many calories should I eat?

The number of calories any person should eat is dependent on the lifestyle and goals of that person. A person trying to lose weight should eat fewer calories than they burn, and a person trying to gain weight should eat more calories than they burn each day.

How do I burn more calories?

The best way to burn or calories is to simply be more active. This can be through exercise or simply moving around more throughout the day. Any activity or movement burns calories, so doing more of it will burn more.

Lifting weights can also build muscle that leads to an increase in calories burned while at rest (BMR).

minimum calories calculator