Keto Calculator

A keto calculator turns basic body measurements into an estimated daily energy target and a practical split of carbohydrates, protein, and fat. This version first estimates resting energy expenditure with the Mifflin-St Jeor equation. It then applies a moderate activity factor and a twenty percent calorie reduction. The result is intended as a planning baseline for adults who want gradual weight loss, not as a diagnosis or prescription. The macro calculation assigns five percent of calories to net carbohydrate, twenty-five percent to protein, and seventy percent to fat. Carbohydrate and protein contain about four calories per gram, while fat contains about nine. These percentages produce the familiar low-carbohydrate, higher-fat pattern associated with nutritional ketosis. They are starting points rather than rigid requirements. Protein needs can vary with training, age, body composition, pregnancy, recovery, and medical conditions. Actual energy use changes from day to day. Sleep, movement, medication, hormones, food tracking accuracy, and metabolic adaptation can all make real outcomes differ from an equation. Use the estimate consistently for two to four weeks, watch weight trend and wellbeing, and make small adjustments rather than reacting to a single measurement. Net carbohydrate generally means total carbohydrate minus fiber, although food labels and local regulations can differ. Measuring portions consistently and reviewing weekly averages usually gives more useful feedback than pursuing perfect precision at every meal. Changes should remain gradual enough to support energy, training, sleep, digestion, and adherence. A ketogenic diet is not appropriate for everyone. People who use insulin or glucose-lowering medicine, take an SGLT2 inhibitor, have kidney, liver, pancreatic, or gallbladder disease, are pregnant, or have a history of disordered eating should consult a qualified clinician before making a major dietary change. The calculated values do not replace individualized nutrition care. Hydration, electrolytes, fiber-rich low-carbohydrate foods, micronutrients, and food quality still matter even when the numerical macro targets are met.