Health Calculator
Protein Intake Calculator
Estimate how much protein you need per day based on your weight, goal, activity level, training style, and number of meals. Get a daily target, safe range, per-meal target, and food examples.
for a 165 lb active person aiming to build or maintain muscle.
Nutrition estimator
Calculate your daily protein intake
Enter your details to estimate your daily protein need.
Protein breakdown
Protein Intake Range Chart
Visual comparison of minimum, target, and upper protein estimate.
Food examples to reach your target
Meal split table
| Meals/day | Protein per meal | Example use |
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How it works
What this protein intake calculator does
This calculator estimates your daily protein target using your body weight, training goal, activity level, and training style. It gives a practical range instead of one fixed number because protein needs are not the same for every person.
You can use body weight for a simple estimate or enable lean-mass adjustment if you want the calculator to reduce the influence of body fat on the protein target.
Formula
Protein intake calculation method
1. Weight conversion
If weight is entered in pounds, the calculator converts it to kilograms before applying the protein multiplier.
Weight in kg = Weight in lb ÷ 2.20462 2. Goal-based target
The calculator chooses a protein multiplier based on your goal, activity, and training style.
Protein target = Weight used × Protein multiplier 3. Meal split
Your daily target is divided by your selected number of meals.
Protein per meal = Daily protein ÷ Meals per day Examples
Protein intake examples
Example 1: General health
A 70 kg person with a general health goal may need a lower protein target than someone lifting weights several times per week.
Example 2: Muscle gain
A 165 lb active person trying to build muscle may land near 150–180g per day depending on training and selected settings.
Example 3: Fat loss
During fat loss, protein can help support fullness and muscle retention, especially when combined with resistance training.
Guide
How to use this calculator
- Enter your weight. Choose pounds or kilograms. The calculator automatically converts units.
- Select your goal. Choose general health, fat loss, muscle maintenance, muscle gain, or performance.
- Set your activity and training style. More intense training usually increases the recommended protein range.
- Choose meals per day. This gives you a practical protein target for each meal.
- Review food examples. Use the food examples as rough serving estimates, not strict meal plans.
FAQ
Protein Intake Calculator FAQ
How much protein do I need per day?
Daily protein needs depend on your body weight, goal, activity level, training style, age, and overall diet. Sedentary adults may need less, while active people, athletes, and people trying to build or preserve muscle often need more.
Is 1 gram of protein per pound of body weight enough?
For many active people trying to build or maintain muscle, 1 gram per pound can be a simple practical target. Some people may need less or more depending on body composition, calories, training, and health status.
Should I use body weight or lean body mass?
Most people can use body weight. If someone has a high body-fat percentage, lean body mass or adjusted weight can sometimes give a more realistic protein target.
How much protein should I eat per meal?
This calculator divides your daily target by your selected number of meals. Many people prefer spreading protein across 3 to 5 meals to make the target easier to reach.
Can too much protein be harmful?
Very high protein intake may not be suitable for everyone, especially people with kidney disease or certain medical conditions. This calculator is for general education and is not medical advice.