Carbohydrate Calculator

By Calxy · Calculation methodology

Convert a daily calorie budget and carbohydrate percentage to grams, with the adult reference range alongside your chosen allocation.

Printed from Calxy · https://www.calxy.net/health/carbohydrate-calculator

Carbohydrate at your selected allocation250.0 g/day
kcal/day

1 – 20000

%

0 – 100

Carbohydrate at your selected allocation

250.0 g/day

  • Adult reference range (45–65% of energy)225.0–325.0 g/day
  • Energy from selected nutrient1,000.0000 kcal/day

Converts an energy budget into grams. The adult reference range is general dietary guidance, not an individual prescription. Your overall diet, health conditions and clinical nutrition plan may require different targets.

How this was calculated

Grams = daily calories × selected percentage ÷ 100 ÷ 4.

The calculation uses 4 kcal per gram of carbohydrate.

Formula and method

Carbohydrate grams = daily calories × carbohydrate percentage ÷ 100 ÷ 4. The general adult AMDR is 45–65% of total energy.

Worked example

At 2,000 kcal and 50% carbohydrate, the allocation is 250 g/day. The 45–65% reference range corresponds to 225–325 g/day.

References

Frequently asked questions

Is this a personalized carbohydrate prescription?

No. It translates a budget into grams. Diabetes, pregnancy, sport and other individual requirements may call for a clinician or dietitian’s plan.

Last updated . Results are estimates for informational purposes only.