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Calorie Calculator

Find your exact daily calorie target for weight loss, maintenance, or muscle gain — based on your personal stats.

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Enter your details to see your personalized calorie targets.

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What is BMR?

Basal Metabolic Rate is the calories your body burns at complete rest — just keeping you alive. It accounts for about 60–70% of total daily energy expenditure.

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Calorie Deficit

A 500 calorie/day deficit creates about 1 lb/week of fat loss (3,500 cal = 1 lb fat). A 250 cal deficit = 0.5 lbs/week. Slower loss preserves more muscle.

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Minimum Calories

Never eat below 1,200 (women) or 1,500 (men) calories without medical supervision. Very low calorie diets trigger adaptive metabolism, muscle loss, and nutrient deficiency.

Common Questions

How many calories should I eat to lose weight?

To lose 1 lb per week, eat 500 fewer calories than your TDEE. For 0.5 lbs/week, a 250 calorie deficit. Most people do best at 1–1.5 lbs per week — faster loss risks muscle loss and metabolic adaptation.

Does eating less always mean losing weight?

In theory yes, but the body adapts. Severe restriction reduces metabolic rate, increases hunger hormones, and causes muscle loss. A moderate deficit with high protein and resistance training produces much better long-term results.

How accurate are calorie calculators?

Calculators estimate within 10–15% for most people. Actual needs vary based on genetics, muscle mass, gut microbiome, and other factors. Use this as a starting point, track for 2–3 weeks, and adjust based on real results.

How many calories do I need to build muscle?

To build muscle, eat 250–500 calories above TDEE (a "lean bulk"). Too large a surplus just adds fat. Combine with progressive resistance training and 0.8–1g protein per pound of bodyweight.

How Many Calories Do I Need to Lose Weight?

To lose weight, you need to eat fewer calories than your body burns each day. A deficit of 500 calories per day leads to approximately 1 pound of fat loss per week. A 250 calorie deficit results in about 0.5 pounds per week. Our calorie calculator finds your exact Total Daily Energy Expenditure (TDEE) and shows you the right calorie target for your specific weight loss, maintenance, or muscle gain goal.

What Is BMR and TDEE?

BMR (Basal Metabolic Rate) is the number of calories your body burns at complete rest — just keeping your heart beating, lungs breathing, and organs functioning. TDEE (Total Daily Energy Expenditure) is your BMR multiplied by an activity factor, representing the total calories you burn in a typical day including exercise and movement. Eating at your TDEE maintains your current weight.

How to Use Calorie Counting to Lose Weight

Start by finding your TDEE using our calculator above. Then subtract 300-500 calories to create a moderate deficit. Track your food intake using an app like MyFitnessPal. Eat enough protein (0.7-1g per pound of body weight) to preserve muscle mass. Reassess every 4-6 weeks as your weight changes — your calorie needs will decrease as you lose weight.

Why Am I Not Losing Weight Even in a Calorie Deficit?

If you are eating in a calorie deficit but not losing weight, there are several common reasons. Inaccurate calorie tracking is the most frequent culprit — studies show people consistently underestimate their food intake by 20-50%. Measuring food by weight rather than volume, and tracking cooking oils and condiments accurately, makes a significant difference. Most people are surprised how many calories are in common foods like salad dressings, nut butters, and drinks.

Metabolic adaptation is another factor. When you eat less for extended periods, your body reduces its energy expenditure to compensate — a process sometimes called "starvation mode." This is why taking periodic diet breaks, maintaining a moderate rather than extreme deficit, and eating enough protein to preserve muscle are all important strategies for sustainable fat loss.

Best Foods for a High Protein Low Calorie Diet

The most effective weight loss diets combine a moderate calorie deficit with high protein intake to preserve muscle. The best foods for this approach are lean proteins with low calorie density: chicken breast (165 cal/100g, 31g protein), white fish like tilapia or cod (100 cal/100g, 21g protein), egg whites (52 cal/100g, 11g protein), Greek yogurt (59 cal/100g, 10g protein), and cottage cheese (98 cal/100g, 11g protein).

Pairing these protein sources with non-starchy vegetables like broccoli, spinach, peppers, and cucumbers gives you large, filling meals at very low calorie cost. This combination — high protein, high fiber, low calorie density — is the foundation of virtually every successful long-term fat loss diet.