Calculate your Total Daily Energy Expenditure (TDEE) from BMR and activity level. Find how many calories you burn per day. Everything runs locally in your browser — nothing is uploaded.
Calculate calories burned through breastfeeding. Enter babys age and feedings per day to estimate daily energy expenditure. Everything runs locally in your browser — nothing is uploaded.
Calculate your daily calorie needs using BMR and activity level. Shows maintenance, cutting, and bulking calorie targets for fitness planning. Everything runs locally in your browser — nothing is uploaded.
Calculate daily protein requirements based on weight and activity level. Get tailored protein recommendations for your fitness goals. Everything runs locally in your browser — nothing is uploaded.
Calculate the day number of the year for any date. Find out which day of 365 (or 366) a specific date represents. Everything runs locally in your browser — nothing is uploaded.
Calculate how many months your cash balance will last given your monthly burn rate. Essential for startup financial planning. Everything runs locally in your browser — nothing is uploaded.
TDEE = BMR × activity multiplier: 1.2 sedentary, 1.375 light, 1.55 moderate, 1.725 heavy, 1.9 athlete. Example: BMR 1,730 × 1.55 (moderate) ≈ 2,680 kcal/day maintenance.
300–500 kcal/day → ~0.3–0.5kg/week. A 500 kcal deficit on 2,680 TDEE means eating ≈2,180 kcal. Larger deficits cost muscle and stall faster — slow beats heroic.
Usual suspects: untracked oils/snacks (~200–400 kcal/day), overestimated activity, water retention masking 2–3 weeks of fat loss. Track everything for 2 weeks before adjusting.
Diet dominates — you can't outrun intake (an hour of running ≈ 600 kcal ≈ one burger). Use exercise for health and muscle retention, the calorie target for the scale.
No. All calculations run locally in your browser. No health data is transmitted or stored.
BMR Calculator
Calculates Basal Metabolic Rate using the Mifflin-St Jeor equation with age, sex, height, and weight. Nutritionists use it for diet planning. Everything runs locally in your browser — nothing is uploaded.
Macro Calculator
Calculate daily macronutrient targets based on your goals. Get personalized protein, fat, and carb recommendations for weight loss or muscle gain. Everything runs locally in your browser — nothing is uploaded.
Daily Calorie Needs
Calculate your daily calorie needs using BMR and activity level. Shows maintenance, cutting, and bulking calorie targets for fitness planning. Everything runs locally in your browser — nothing is uploaded.