How does the protein calculator determine my daily protein needs?

It uses your weight, your goal (such as maintaining, losing, or gaining muscle), and your activity level to estimate a daily protein target. More active individuals and those aiming to build muscle typically need more protein per kilogram of body weight.

What is the recommended protein intake for muscle building?

For muscle building, a common guideline is 1.6 to 2.2 grams of protein per kilogram of body weight per day. This calculator adjusts the recommendation based on your specific goal and activity level, so you get a target tailored to you.

Can I use this calculator for weight loss?

Yes. When your goal is weight loss, higher protein intake can help preserve muscle mass and increase satiety. The calculator provides a protein target that supports your weight loss goal while considering your activity level.

Fitness

Instantané, privé et gratuit

Calculateur de Proteines.

15 oct. 2026

Besoin quotidien en proteines

Cette calculatrice n'est pas encore entièrement traduite ; une partie du texte s'affiche en anglais.

Calcul sur l'appareilSans inscription

Saisissez vos valeurs

Les résultats se mettent à jour pendant la saisie.

02 / RÉPONSE

Optimiser protéine

Protéine essentielle

Poids corporel (kg)

Votre objectif

Niveau d'activité

Vos besoins protéinés quotidiens

Apport quotidien recommandé

70g

Par jour

Par repas

23g

Plage acceptable

63-77g

Référence sources protéinées

Sources animales

Poulet
Boeuf
Saumon
Œufs
Yaourt

Sources végétales

Lentilles
Pois chiches
Tofu
Quinoa
Amandes

Par kg de poids corporel

1.0g/kg

Calories de protéine

280 cal

Par collation

14g

Conseils

Répartition
Chaque repas
Combiner
Poudre
Hydrater

Calculatrices associées

Protein Intake CalculatorEstimate a daily protein target from body weight, activity level, and goal.Advanced Macro CalculatorCalculate macronutrient targets (protein, carbs, fats) with multiple diet presets Macro CalculatorCalculate macronutrient ratios for your goals Calorie CalculatorCalculate daily calorie needs for weight goals Body Fat CalculatorEstimate body fat percentage using measurements BMR CalculatorCalculate your Basal Metabolic Rate (BMR) using Mifflin-St Jeor, Revised Harris-Benedict, and Katch-McArdle formulas.

Cite this calculator

Canonical URL: https://mathify.one/fr/fitness/protein

Updated 15 oct. 2026

Cite as: Mathify. (2026). Calculateur de Proteines. https://mathify.one/fr/fitness/protein

Use Cases

Plan your daily protein for muscle gain

If you're training to build muscle, this calculator gives you a daily protein target to support muscle repair and growth based on your weight and activity.

Example: A 70 kg active individual aiming to gain muscle might get a target of 140-154 g of protein per day.

Adjust protein intake for weight management

Whether you're trying to lose, maintain, or gain weight, this tool helps you set a protein goal that aligns with your objective and activity level.

Example: A sedentary person wanting to lose weight may receive a lower protein target than an athlete with the same goal.

Frequently Asked Questions

How does the protein calculator determine my daily protein needs?: It uses your weight, your goal (such as maintaining, losing, or gaining muscle), and your activity level to estimate a daily protein target. More active individuals and those aiming to build muscle typically need more protein per kilogram of body weight.
What is the recommended protein intake for muscle building?: For muscle building, a common guideline is 1.6 to 2.2 grams of protein per kilogram of body weight per day. This calculator adjusts the recommendation based on your specific goal and activity level, so you get a target tailored to you.
Can I use this calculator for weight loss?: Yes. When your goal is weight loss, higher protein intake can help preserve muscle mass and increase satiety. The calculator provides a protein target that supports your weight loss goal while considering your activity level.

Tips & Common Mistakes

Tips

Enter your current weight accurately, as the protein target is directly proportional to it.
Be honest about your activity level – it significantly affects your protein needs.
Spread your protein intake evenly across meals to maximize muscle protein synthesis.
Use the result as a starting point and adjust based on how your body responds.

Common Mistakes to Avoid

Using your goal weight instead of your current weight, which can lead to an inaccurate protein target.
Overestimating activity level, resulting in a protein recommendation that's higher than necessary.
Ignoring the calculator's result and following a generic protein guideline that may not fit your specific situation.

Last updated: August 13, 2026