Nutrition and Intake Planning
A fuller guide to intake planning, covering hydration, macro splits, and calorie-burn style estimates in a careful, formula-based way that stays useful without pretending to be medical advice.
Use this calculator to translate your own calorie target into grams of protein, carbohydrate, and fat based on the percentages you choose.
Inputs
The strongest pages in the library pair the live calculator with a topic guide and, where it helps, a printable reference you can reuse offline.
Use this calculator for meal planning and nutrition tracking when you already have a calorie target and want a clean macro breakdown.
The result shows the protein target first, with carbohydrate and fat targets listed alongside so the full split is easy to apply.
This calculator simply converts your chosen calorie target and percentage split into grams. It does not decide whether that split is appropriate for you.
Estimate basal metabolic rate from age, sex, height, and weight using the Mifflin-St Jeor equation with neutral, non-clinical presentation.
Use the Calorie Burn Calculator as a general planning estimate with clear assumptions and careful interpretation.
Estimate a daily hydration target from body weight, activity, and climate using a cautious planning-oriented approach.
Estimate ideal body weight from height and sex using a widely cited heuristic formula and careful neutral wording.