Carbohydrate Calculator
Carbohydrates are your body's primary energy source. This calculator helps you determine your optimal daily carb intake based on your total calorie consumption, dietary goal, and physical activity level, using guidelines from the Dietary Reference Intakes.
The Acceptable Macronutrient Distribution Range (AMDR) set by the Institute of Medicine recommends that 45–65% of total daily calories come from carbohydrates for the general population. Each gram of carbohydrate provides 4 calories. However, optimal carb intake varies significantly based on individual goals: those seeking weight loss may benefit from moderate carb restriction (20–35%), while athletes and those building muscle may need 50–60% or more to fuel performance and recovery.
Ketogenic diets restrict carbs to under 5–10% of calories (typically under 50 grams per day) to shift the body into ketosis, a metabolic state that burns fat for fuel. While effective for some, keto is not suitable for everyone and should be approached with guidance from a healthcare provider. Regardless of your carb target, prioritize complex carbohydrates from whole grains, vegetables, legumes, and fruits over refined sugars and processed grains.