Protein calculator: how much you actually need in a day

Your daily protein target is one gram for every pound you weigh. If you weigh 180 pounds, eat 180 grams. The calculator above does the division into meals for you.

That is the same number the BryksBuilt app sets your target to when you finish onboarding, so this page and the app agree by construction rather than by coincidence.

Why one gram per pound

There are two honest answers and most articles only give you one.

The research answer: protein synthesis stops responding somewhere around 0.7 to 0.8 grams per pound of bodyweight for people who lift. Beyond that you are paying for expensive food that gets used for energy. By that logic the target should be about 0.8.

The practical answer, and the reason we use 1.0: almost nobody hits their number. People undershoot on busy days, they eyeball portions, they forget the drinks, and the protein on a label is not always the protein in the food. Aiming at one gram per pound builds in a margin so that a slightly bad week still lands above the threshold that matters. The cost of being slightly over is that you spent a bit more on chicken. The cost of being under is that the training you already paid for in sweat does not show up.

If you would rather aim at the bottom of the range, take your bodyweight in pounds and multiply by 0.7. Nobody will arrest you.

What it looks like in food

The number that surprises people is not the daily total, it is what it takes to hit it. Here is roughly where 180 grams comes from in a normal day.

Food	Protein
Large chicken breast	about 60 g
Big tub of Greek yoghurt	about 50 g
Scoop of whey	about 25 g
Tin of tuna	about 25 g
Two eggs	about 12 g
Slice of bread, cup of rice, an apple	almost none

That last row is the one that gets people. A day that feels full of food can be almost empty of protein, because bread, rice, pasta, fruit and anything you drink contribute almost nothing. This is why tracking for two or three weeks is the fastest nutrition education available: nearly everyone is shocked by how little protein a normal day contains.

Per meal is the number that actually helps

A daily total is a scoreboard. A per meal number is an instruction, and instructions are what people can follow.

At 180 grams across four meals that is 45 grams a meal. Against the table above that is most of a chicken breast, or a scoop of whey plus a tin of tuna, or two eggs plus most of a tin of tuna. Once you know what 45 grams looks like on a plate you stop needing to weigh anything, which is the point at which this becomes sustainable rather than a project.

Three meals means 60 grams a meal and is harder than it sounds. Five means 36 and suits people who graze. Pick the one that matches how you already eat rather than the one that sounds most disciplined.

The mistakes worth avoiding

Counting the protein you meant to eat. The gap between intended and actual is where most people live. Track it honestly for two weeks before deciding the target is impossible.

Treating shakes as the plan. Whey is a gap closer at the end of a day, not a foundation. Whole food brings the rest of the nutrition and keeps you full.

Worrying about timing. Spread it out because that is easier to eat, not because the clock matters. The thirty minute window is a supplement marketing invention.

Forgetting it during a cut. This is exactly backwards. In a deficit protein is what decides whether the weight you lose comes off your fat or your muscle.

Hitting it is the hard part

Knowing your number takes ten seconds. Hitting it four days out of five for a year is the entire game, and that is a tracking problem rather than a knowledge problem.

BryksBuilt sets this target automatically from your bodyweight, logs what you eat against it, builds meal plans and grocery lists that hit it, and shows you the days you missed. It is free to download.