Nutrition calculators
Calculators that answer the questions people actually ask before they start tracking. Each one runs in your browser, needs no account, and uses the same equations as the CalEasy app.
Calorie deficit calculator How many calories to eat to lose weight at a pace you can hold. → TDEE calculator Your maintenance calories — what you burn on an average day. → Macro calculator Protein, carbs, and fat targets that fit your calorie budget. → Protein calculator How much protein a day for your body weight and goal. → BMI calculator Your BMI, what the category means, and the healthy range for your height. →
Estimates, not medical advice
These calculators use published equations to estimate your energy needs. They are informational only — not a diagnosis, treatment, or a substitute for professional advice. Individual needs vary with body composition, medication, and health conditions. Talk to a doctor or registered dietitian before making significant changes, especially if you are pregnant or breastfeeding, under 18, or managing a medical condition or eating disorder.
See the science and sources behind our numbers →