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Frequently Asked Questions
Your daily calorie need (TDEE) depends on your age, gender, height, weight and activity level. Enter these details and the calculator estimates the calories needed to maintain your current weight, plus targets for losing or gaining weight.
It uses the Mifflin-St Jeor equation, the most accurate widely-used formula for Basal Metabolic Rate (BMR). For men: BMR = 10 × weight(kg) + 6.25 × height(cm) − 5 × age + 5. For women: the same but − 161 instead of + 5. BMR is then multiplied by an activity factor to get TDEE.
BMR (Basal Metabolic Rate) is the calories your body burns at complete rest. TDEE (Total Daily Energy Expenditure) is BMR multiplied by an activity factor, representing the total calories you burn in a day including movement and exercise.
A safe deficit of about 500 calories below your TDEE leads to roughly 0.5 kg (1 lb) of weight loss per week. The calculator shows mild loss (−250 kcal) and loss (−500 kcal) targets. Avoid eating below your BMR without medical guidance.
Sedentary = little or no exercise (×1.2). Lightly active = 1–3 days/week (×1.375). Moderately active = 3–5 days/week (×1.55). Very active = 6–7 days/week (×1.725). Extra active = hard daily exercise or a physical job (×1.9).
Yes, CodBolt's Calorie Calculator is completely free with no signup and no ads. All calculations run instantly in your browser and no data is stored. It is a general estimate, not medical advice.