kcalcraft Nutrition calculators that show the equation behind every number

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NL Written by Nan Liang · Sources: peer-reviewed equations, see references per tool

kcalcraft

Free nutrition calculators built on peer-reviewed equations — BMR, TDEE, macros, body composition — with the formula, version, and source shown next to every result. Built and maintained by Nan Liang.

Questions or corrections: [email protected]

Calculators

TDEE Calculator
BMR Calculator
Calorie Calculator
Macro Calculator
Protein Calculator
Carb Calculator
Calorie Deficit Calculator
Body Fat Calculator
BMI Calculator

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Disclaimer

Content on kcalcraft is for general informational purposes only, intended for healthy adults, and is not a substitute for professional medical advice, diagnosis, or treatment. Calculator outputs are statistical estimates, not predictions. If you are under 18, pregnant or breastfeeding, or managing a medical condition, speak with a clinician before changing your diet.