30 Grams of Protein: What It Equals (Plus 10, 20, 50 g)

30 grams of protein is roughly 97 g of cooked chicken breast (130 g raw), 4.5 eggs, 2 small cans of tuna in water, almost 2 containers of skyr, or 335 g of cooked lentils. It's the same protein, but not the same meal: between the lightest and heaviest option on that list there's more than a 200 kcal difference.

Below you'll find a calculator for any amount using whatever foods you choose, followed by ready-made equivalents for 10, 20, 25, 30, 40, and 50 grams — the amounts people search for most.

The quick rule: every 10 g of protein

If you don't want to memorize tables, just learn the 10 g block and multiply. For 30 g, triple it; for 25 g, multiply by two and a half.

• Chicken breast: 32 g cooked or 43 g raw.
• Canned tuna in water: 38 g drained, a bit more than half a small can.
• Egg: one and a half (80 g without shell).
• Egg whites: 3 whites.
• Skyr: 90 g, a bit more than half a container.
• Cooked lentils: 110 g, half a plate.
• Whey protein: 13 g of powder, less than half a scoop.

10 grams of protein: what it equals

10 g is what a normal snack provides, or what a weak breakfast is missing. Watch out for cereal and nuts: they hit that 10 g, but with four or five times more kcal than a can of tuna.

20 grams of protein: what it equals

20 g is a full protein serving for a lighter person, or a snack that actually does the job. Three eggs barely get there; a container of skyr falls short at 16.5 g.

25 grams of protein: what it equals

25 g per meal is a solid target for most adults who train: four meals like that already put you at 100 g a day. That's just about one scoop of whey, or a little under two cans of tuna.

30 grams of protein: what it equals

30 g is the most-searched amount because it's the typical serving in a main meal for someone looking to build or maintain muscle. With lean meat and fish you get there easily; with dairy and legumes you need quite a bit of volume.

Look at the kcal column: those same 30 g of protein cost 134 kcal with tuna and 553 kcal with chickpeas. Legumes aren't a worse choice — they bring fiber, iron, and carbs you also need — but if you're in a deficit, it's worth knowing their protein comes with quite a bit of energy attached.

When there's no time to cook, a whey shake is the quickest and cheapest way per gram to hit that 30 g. It's not better than real food, just more convenient.

40 grams of protein: what it equals

40 g in a single meal makes sense if you eat few meals a day, if you're on the heavier side, or after a full-body workout. With eggs you're already talking about half a dozen; with meat or fish it's still a normal serving.

50 grams of protein: what it equals

50 g isn't a serving anymore — it's half a day's protein for a lot of people. With meat and fish it fits on a big plate; with legumes, dairy, or eggs, you end up with an amount few people would eat in one sitting. At this level it's more realistic to split it across two meals or combine several sources.

Real-world combinations to hit 20, 30, and 40 g

Almost nobody eats 275 g of plain skyr on its own. In practice, the protein in a meal comes from two or three foods. These combinations hit the target without anything weird:

• 20 g snack (184 kcal): a 150 g container of skyr with a tablespoon of peanut butter.
• 30 g breakfast (253 kcal): a container of skyr and 2 scrambled eggs.
• 37 g breakfast (381 kcal): 40 g of oats cooked in a glass of milk, with a scoop of whey mixed in at the end.
• 30 g vegan dinner (505 kcal): 150 g of pan-seared tofu with a serving of rice (80 g dry).
• 41 g meal (356 kcal): a plate of lentils (200 g cooked) with 75 g of cooked shredded chicken.

Raw or cooked: the mistake that throws off the numbers the most

Meat and fish lose water when cooked, around 25%, so the protein becomes more concentrated. 100 g of raw chicken breast has about 23 g of protein; that same 100 g, once pan-cooked, ends up weighing around 75 g, and the protein rises to about 31 g per 100 g cooked. If you use the raw figure with the cooked weight, you'll log less protein than you're actually eating; do it the other way around and you'll log more.

With legumes, pasta, and rice it's the opposite: they absorb water and triple their weight. 100 g of dry lentils has 24 g of protein; cooked, they weigh around 270 g and drop to 9 g per 100 g. Pick one way of weighing and stick with it, and in the calculator use the food version that matches how you weigh.

Which foods give you more protein per calorie

If you're in a deficit, what matters more than protein per 100 g is protein per 100 kcal. Here's how the foods in this guide rank, from most to least efficient:

The fact that eggs or legumes rank near the bottom doesn't make them worse foods: the yolk brings fats, vitamins, and choline, and legumes bring fiber and minerals. The table only shows how much each gram of protein "costs" in energy.

If you're vegetarian or vegan

The plant sources with the most protein per calorie are seitan, textured soy, tofu, and tempeh. Legumes get there too, but with a lot of volume. Combining legumes with grains throughout the day rounds out the amino acids, and a plant-based protein powder helps on days when the numbers don't add up.

Frequently asked questions

How much protein is in an egg?

A medium egg, around 55 g without the shell, has close to 7 g of protein: about 3.5 g in the white and the rest in the yolk. That's why you need 4 or 5 eggs to hit 30 g.

How much protein is in a can of tuna?

A small can of tuna in water (about 56 g drained) has around 14-15 g of protein. Two cans give you about 30 g. In oil the protein is similar, but the kcal go up.

How many grams of chicken is 30 g of protein?

About 130 g of chicken breast weighed raw, or about 97 g if you weigh it cooked. It's the same piece — cooking makes it lose water and weigh less.

How much protein is in a scoop of protein powder?

It depends on the product and the scoop size, but typically 30 g of whey concentrate gives 22-24 g of protein, and 30 g of isolate gives 25-27 g. Check the label: some brands use 25 g scoops.

Does store-bought "Greek yogurt" actually have that much protein?

Often not. Products labeled "Greek style" are usually yogurts with added cream and come in at just 3-6 g of protein per 100 g. True strained yogurts, and skyr, run around 9-11 g. Check the label before swapping one for the other.

How much protein can I actually use in one meal?

There's no cutoff point beyond which protein gets "wasted." 20-40 g per meal covers muscle protein synthesis well, and if you eat more than that, your body still uses it — it just takes longer to digest. What matters most is your total for the day, which you can work out with the protein calculator.