What this calculator does
The Grams of Protein Per Meal Calculator tells you how much protein, in grams, to aim for at each meal. It starts from your total daily protein goal, which is set by your body weight and a protein target in grams per kilogram, and then divides that goal evenly across the number of meals you eat in a day. The result is a simple per-meal number you can build each plate around.
How to use it
Enter your body weight and choose whether it is in kilograms or pounds. Set your daily protein target in grams per kilogram of body weight: common ranges are about 0.8 g/kg for the basic RDA, 1.2 to 1.6 g/kg for general fitness, and 1.6 to 2.2 g/kg for building or preserving muscle. Finally, enter how many meals you eat per day. The calculator returns the grams of protein for one meal, along with your full daily target for reference.
The formula explained
Your daily protein need is body weight multiplied by your gram-per-kilogram target. Dividing that by the number of meals gives the per-meal amount:
$$ \text{Protein per meal} = \frac{W \times r}{n} $$Here W is body weight in kilograms, r is the daily protein target in grams per kilogram, and n is the number of meals per day. Pounds are converted to kilograms first using 1 lb = 0.45359237 kg. The tool also shows about 0.4 g/kg per meal, a research-based amount often used to help maximise the muscle-building response of a single meal.
Worked example
Suppose you weigh 70 kg, choose a target of 1.6 g/kg, and eat 4 meals a day. Your daily protein need is 70 times 1.6, which is 112 g per day. Divided across 4 meals, that is 112 divided by 4, or 28 g of protein per meal. If you instead ate 3 meals, each meal would need about 37 g to reach the same daily total.
Frequently asked questions
How many grams of protein should I eat per meal? It depends on your body weight, goal, and meal count, but many active adults land between 20 and 40 g per meal. This calculator gives your exact number by splitting your daily target across your meals.
Is there an upper limit to protein per meal? Your body can digest large amounts, but for maximising muscle protein synthesis in one sitting, research often points to roughly 0.4 g/kg of body weight per meal. Beyond that, extra protein is still used for energy and other functions, just less efficiently for muscle building.
Does meal timing matter more than daily total? Total daily protein is the biggest factor for most goals. Spreading intake fairly evenly across meals is a useful refinement, which is why dividing your daily target by your meal count is a sensible starting point.
