Nutrition Diet Calculators — Health
Dial in your daily nutrition targets with tools built for real dietary planning. The TDEE calculator estimates the calories you burn each day, the macronutrient calculator splits that budget into protein, carbs, and fat, and the iron and vitamin D intake calculators check whether your diet meets reference intakes for two commonly under-consumed nutrients. Each tool shows the equation and assumptions so you can adjust for activity, age, and goals.
All Nutrition Diet Calculators
iron intake calculator. Get instant, accurate results.
macronutrient calculator. Get instant, accurate results.
tdee calculator. Get instant, accurate results.
vitamin d calculator. Get instant, accurate results.
About Nutrition Diet Calculators
Dial in your daily nutrition targets with tools built for real dietary planning. The TDEE calculator estimates the calories you burn each day, the macronutrient calculator splits that budget into protein, carbs, and fat, and the iron and vitamin D intake calculators check whether your diet meets reference intakes for two commonly under-consumed nutrients. Each tool shows the equation and assumptions so you can adjust for activity, age, and goals.
Whether you need to solve a one-time problem or verify your own calculations, these free tools cover the most common nutrition diet scenarios. All results are computed in your browser — no data is sent to any server.
What You Can Calculate
This section includes 4tools: Iron Intake Calculator, Macronutrient Calculator, TDEE Calculator, Vitamin D Calculator. Each calculator is free to use with no signup required.