Calculateur de Calories Gratuit en Ligne

Eat 500 calories below your TDEE for ~1 lb/week loss. For example, if your TDEE is 2,200 calories, eat 1,700/day. Avoid going below 1,200 calories (women) or 1,500 (men) without medical supervision.

BMR (Basal Metabolic Rate) is calories burned at complete rest — just to keep you alive. TDEE (Total Daily Energy Expenditure) adds your activity level on top. You should eat at your TDEE to maintain weight.

The Mifflin-St Jeor equation, which is considered the most accurate for most people: BMR = 10×weight(kg) + 6.25×height(cm) − 5×age + 5 (men) or −161 (women). The Harris-Benedict formula is also available.

TDEE estimates can be off by 10–20% due to individual metabolic variation. Use the result as a starting point, track your actual weight change over 2–3 weeks, then adjust intake by 100–200 calories if needed.

Not necessarily, but tracking helps. Awareness of intake is the strongest predictor of dietary adherence. Many people lose weight without formal counting by focusing on food quality, portion control, and satiety signals.

Yes, the Calculateur de Calories on Allio Tools is completely free with no sign-up or registration required. It works directly in your browser.

Calculez vos calories quotidiennes nécessaires pour perdre, gagner ou maintenir votre poids. No data is sent to a server — everything runs locally in your browser for maximum privacy and speed.

No installation needed. The Calculateur de Calories runs entirely in your web browser on any device — desktop, tablet, or mobile.

Completely safe. The Calculateur de Calories processes everything locally in your browser. No input data, results, or usage information is ever transmitted to or stored on any server.

After the page loads for the first time, the Calculateur de Calories works without an internet connection for all client-side processing. Tools that fetch live external data (such as DNS or network lookups) require an active connection.

The Calculateur de Calories uses clinically validated formulas such as the Mifflin–St Jeor or Harris–Benedict equations where applicable. Results are population-based estimates and can differ from measured values by 10–20% for individuals with atypical body composition. See our <a href="/methodology/">Methodology page</a> for full formula sources and references. Consult a qualified healthcare professional before making medical or dietary decisions.

The Calculateur de Calories uses an established, peer-reviewed formula endorsed by leading health organisations such as the WHO, CDC, or NIH where applicable. The specific formula is chosen for its validated accuracy across diverse adult populations under normal conditions.

Yes. The Calculateur de Calories is built with standard browser APIs and works on all modern browsers including Chrome, Firefox, Safari, and Edge — on both desktop and mobile. No plugins, extensions, or third-party software are required.

Select and copy the result text to paste into any document or app. For image tools, a Download button saves the file directly to your device. Your browser's built-in screenshot function also captures results quickly. No account or login is required.