Four free, browser-based weight-loss calculators in one place. Start with BMI to see where your current weight sits, use TDEE to set a sensible daily calorie target, split that target into protein, carb, and fat grams with the macro tool, and project a realistic timeline to your goal weight. Every tool runs in your browser — nothing is saved, nothing is sent anywhere.
Use the free BMI calculator to find your body mass index in metric or imperial units, see your WHO weight category, and learn the healthy-weight range for your height — plus an honest look at what BMI does and doesn't measure.
Use the Mifflin-St Jeor formula to estimate your TDEE, then set a safe calorie deficit (10-25%) for steady, sustainable weight loss without crash dieting.
Use the free macronutrient calculator to split any daily calorie target into protein, carb, and fat grams. Pick a balanced, higher-protein, or lower-carb approach and see grams and percentages instantly, plus an honest look at why total calories still matter most.
How long does it take to lose weight? Most people lose 0.5–2 lb per week. Use the timeline table and free calculator to estimate your timeline.
