Enter your sex, height, age, weight, and activity level into the calculator below to determine the recommended number of carbs needed per day.

## Daily Carbs Formula

The following formula is used to calculate the total number of daily carbs you may require for a healthy balanced diet.

C = ((W*10/2.20452)+(6.25*h/.393701)+(5*a)+sc+6)*.40/4

• Where C is the daily carbohydrate requirement (grams)
• W is your weight (lbs)
• H is your height (in)
• a is your age (years)
• sc is a constant based on your sex

## Daily Carbs Definition

This formula is a little dense so we will break it down a little further. The first step in calculating your daily carb intake is to calculate your daily calories needed. This can be done through a number of formulas, but most end up with a very similar result. In this case, we use a formula that uses BMR (basal metabolic rate).

Then we take that total calorie and multiply it by .40 (40%). 40% is a good recommendation for the total calories needed to be from carbohydrates in order to have a healthy diet. Then, you divide that number by 4 to get grams of carbs. This is because each gram of carbohydrate has 4 calories of energy.