Carbohydrate Calculator
Estimates how many grams of carbohydrate you should eat each day based on your total calorie needs and goal. Shows the full range from lower-carb to the 45-65% Acceptable Macronutrient Distribution Range.
TheCalculators — Carbohydrate Calculator
Printed thecalculators.com
Recommended Daily Carbohydrates
256 – 370 g
45–65% of daily calories (AMDR) · IOM minimum: 130 g/day
- Target calories
- 2,276 Cal/day
- TDEE (maintenance)
- 2,276 Cal/day
- Carbs at 45%
- 256 g/day
- Carbs at 55% (midpoint)
- 313 g/day
- Carbs at 65%
- 370 g/day
- Fiber guideline
- 32 g/day (14 g per 1,000 Cal)
Macro calorie split at the AMDR midpoint
- Carbohydrate (55%)1,252
- Protein (20%)455.00
- Fat (25%)569.00
Carbohydrate intake scenarios
Carbohydrates and protein provide 4 Calories per gram; fat provides 9.
Favor complex carbs — whole grains, vegetables, legumes — over refined sugars. Estimates for informational purposes only — not medical advice.
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Formula
Carbs (g) = daily calories × carb share (%) ÷ 4 kcal per gram
- • Compute TDEE = BMR × activity factor, then apply the goal adjustment (±500 Cal/day).
- • Pick a carbohydrate share of calories — 45-65% is the accepted healthy range.
- • Divide carb calories by 4 to convert to grams.
Pro tips
- • The Institute of Medicine recommends at least 130 g of carbohydrates daily for adults.
- • Fiber is essential for digestion — aim for 14 g per 1,000 Calories eaten.
FAQ
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