To calculate daily carbohydrate needs, the formula considers your weight, height, age, and sex — then applies a standard percentage of total calories from carbs, divided by 4 (since 1 gram of carbs equals 4 calories).
Formula:
Contents
C = ((W × 10 ÷ 2.20452) + (6.25 × H ÷ 0.393701) + (5 × A) + SC + 6) × 0.40 ÷ 4
Table of Variables
| Variable | Meaning |
|---|---|
| C | Daily Carbohydrate Intake (grams) |
| W | Weight (in pounds) |
| H | Height (in inches) |
| A | Age (in years) |
| SC | Sex Constant (+5 for males, –161 for females) |
What is a Carbs Calculator: Let’s Find Out What Is Your Carbohydrates Intake Requirements Per Day
You’re planning your meals. You know how much protein you want, maybe even your fat intake — but then you pause. “How many carbs do I actually need?” That’s where the Carbs Calculator steps in. It gives you a clear, personal estimate of your ideal daily carbohydrate intake based on your body and goals.
Whether you’re on a mission to lose weight, bulk up for bodybuilding, or just manage carbs for diabetes or keto, this tool adjusts to fit your needs. It works great if you’re looking for a carbs calculator to lose weight, a carbs calculator for bulking, or even one for cycling or high-carb days.
You can also use it to track your net carbs, understand macros with a protein and carbs calculator, or estimate carbs in your favorite foods — from keto plans to fast food picks like Starbucks or Subway. If you’ve ever wondered how many carbs per day is right for you, this calculator clears the guesswork — so you can focus on feeling better, eating smarter, and living stronger.
