Protein Intake Calculator: How Much You Need

Protein intake calculator: How much protein you need & how to hit it

Find your daily protein number in a minute, then turn it into meals you'll actually eat. A calculator, ranges by goal, a per-meal split, 15 foods with their grams, and fixes for the days it falls apart.

Read Shop

Free Shipping on Every Meal PlanFree Shipping
Up to 20% Off 30-Meal PlansUp to 20% Off
Chef Cooked, Dietitian BuiltDietitian Built
Heat & Eat in MinutesHeat & Eat

Tina Sassine, RD, MPHRegistered Dietitian · Sep 15, 2025

Clean Eatz Kitchen High Protein Meal Plan box with plated chef-cooked meals

Quick answer

The 2025 to 2030 Dietary Guidelines for Americans set protein at 1.2 to 1.6 grams per kilogram of body weight a day. For a 160-pound adult, that's about 87 to 116 grams. If you lift and want more muscle, research supports up to about 1.6 to 2.2 g/kg. Spread it over 3 to 5 meals or snacks, typically 20 to 40 grams each.

Protein advice online runs from "you need way less than you think" to "one gram per pound or you're wasting your workout." Neither helps much on a Tuesday.

This page gives you a number and a plan. Use the calculator below for a daily target, check it against the ranges for your goal, split it across your meals, and use the food table to build those meals.

Then come the parts most protein guides skip: what to do on a low-appetite morning, a lunch crunch or a night you're too tired to cook.

Why protein intake matters

Too little costs muscle

Protein builds and maintains muscle, supports your immune system and runs countless processes in the body. Both too little and far too much carry costs, which is why a number beats a guess.

Too little protein over time leads the body to break down muscle for the amino acids it needs elsewhere. That can mean less strength and endurance, a weaker immune response and slower wound healing. In older adults, low protein speeds age-related muscle loss (sarcopenia), which raises the risk of falls, frailty and losing independence.

Too much is less of a worry than it sounds for healthy people. The kidneys filter the byproducts of protein, but a 2018 meta-analysis of 28 trials and 1,358 adults without kidney disease found kidney function didn't change differently on higher-protein diets (at least 1.5 g/kg or 100 g a day) than on normal or lower ones. People who already have kidney disease are a different case and need personal medical guidance.

Moderately higher protein has real benefits, especially for active people, older adults and anyone losing fat or building muscle: it helps preserve lean muscle during weight loss, improves fullness and supports recovery after exercise. For most healthy adults, the Dietary Guidelines range of 1.2 to 1.6 g/kg is a safe place to land.

How to hit your daily protein target

Six steps from number to plate

A target only helps if it turns into food. These steps go from the number to the plate, in the order you'd plan a day.

Step 1: Find your protein range by goal

Start with grams per kilogram

These are typical daily ranges. Personalize them with the calculator above and your clinician as needed.

Daily protein ranges by goal, in grams per kilogram and per pound of body weight
Goal	From	Per kg	Per lb	Where it comes from
General health	1.2	1.2 to 1.6 g	0.54 to 0.73 g	Dietary Guidelines for Americans, 2025 to 2030
Muscle gain	1.6	1.6 to 2.2 g	0.7 to 1.0 g	With strength training and a slight calorie surplus. Gains leveled off near 1.6 on average (Morton 2018)
Fat loss	1.6	1.6 to 2.2 g	0.7 to 1.0 g	Higher protein helps fullness and muscle retention. Lean lifters in a deficit may go higher (ISSN 2017)
Older adults	1.0	1.0 to 1.2 g or more	0.45 to 0.54 g or more	At least this much, 1.2 or more if active, more with illness (PROT-AGE 2013)

Daily protein ranges by goal, in grams per kilogram and per pound of body weight

Here is the math for a 160-pound adult. Divide by 2.2 to get 72.6 kg. At 1.2 to 1.6 g/kg, that's about 87 to 116 grams a day. At 1.6 to 2.2 g/kg for muscle gain, it's about 116 to 160 grams.

The muscle-gain range comes from a 2018 meta-analysis of 49 trials and 1,863 people doing resistance training. Extra protein stopped adding muscle at about 1.62 g/kg a day on average, and the estimate's upper bound was 2.2 g/kg. The International Society of Sports Nutrition puts most exercising people at 1.4 to 2.0 g/kg, and says 2.3 to 3.1 g/kg may help lean, resistance-trained people keep muscle while dieting.

Step 2: Split your protein across meals

20 to 40 grams, 3 to 5 times

Most people feel and perform best with about 20 to 40 grams of protein per eating occasion. Use this table to divide your daily total.

Protein per meal for common daily totals, rounded to the nearest gram
Daily total	3 meals	4 meals	5 meals
100 g	33 g	25 g	20 g
120 g	40 g	30 g	24 g
140 g	47 g	35 g	28 g
160 g	53 g	40 g	32 g

Protein per meal for common daily totals, rounded to the nearest gram

Three to five protein-rich meals or snacks spread through the day beat one huge serving at dinner for fullness and recovery.

Step 3: Build each meal around a protein food

Pick the protein first

Choose the protein, then add the rest of the plate. The numbers below are from USDA FoodData Central where a generic food exists, and typical label values for branded foods. Brands vary, so check your package.

High-protein foods and their typical grams of protein per serving
Food	About	Range	Serving	Notes
Chicken breast, cooked	35 g	35 g	4 oz	Lean and versatile
Salmon, cooked	40 g	38 to 43 g	6 oz	Farmed to wild, plus omega-3s
Tuna, light, in water	22 g	22 g	3 oz drained	Budget-friendly
Shrimp, cooked	41 g	41 g	6 oz	Very lean
Eggs	13 g	13 g	2 large	Add egg whites to boost protein
Egg whites	26 g	26 g	1 cup liquid	Almost no fat
Greek yogurt, plain	20 g	16 to 23 g	3/4 to 1 cup (170 to 227 g)	Great for bowls and sauces
Cottage cheese	26 g	24 to 28 g	1 cup	2% to 1% milkfat, a bedtime snack option
Tofu, firm	22 g	22 g	1/2 cup (126 g)	Brands vary widely, press for better texture
Tempeh	17 g	17 g	3 oz	Fermented soy, nutty
Edamame, prepared	18 g	18 g	1 cup	Easy freezer staple
Beans or lentils, cooked	16 g	15 to 18 g	1 cup	Black beans to lentils
Chickpea or lentil pasta	13 g	11 to 15 g	2 oz dry	Label values, more than regular pasta
Protein powder	25 g	20 to 30 g	1 scoop	Check the label, great in overnight oats
Protein bar	18 g	15 to 20 g	1 bar	Read calories and fiber carefully

High-protein foods and their typical grams of protein per serving

MedlinePlus offers a quick rule for everything else: one ounce of most protein-rich foods has about 7 grams of protein. That's an ounce of meat, fish or poultry, one large egg, a quarter cup of tofu or half a cup of cooked beans.

Step 4: Time protein around your workouts

A protein meal after training

Training days: have a protein-rich meal or shake within a couple of hours after lifting, skating or cycling.
Evening: cottage cheese or Greek yogurt can support fullness and recovery overnight.
Even spread: aim for 3 to 5 protein servings a day rather than one huge one.

Exercise and protein work together. The ISSN position stand notes that resistance exercise and protein each stimulate muscle protein synthesis, and the effect is greater when protein comes before or after the workout. The CDC recommends adults do muscle-strengthening activity at least 2 days a week, and protein makes those sessions count.

Step 5: Plan for busy days

Fix the hard meals in advance

Planning ahead is how you hit the number consistently. Build each meal around a high-protein food such as chicken, fish, tofu or Greek yogurt, and keep quick options like hard-boiled eggs or tuna pouches ready for busy days. Protein-rich snacks such as cottage cheese, edamame or protein bars fill gaps, and prepping meals ahead covers the rest.

Low-appetite mornings: a smoothie with a scoop of protein, fruit and Greek yogurt, or eggs plus egg whites.
Lunch crunch: keep ready proteins (tuna pouches, rotisserie chicken, tofu cubes) and build bowls with vegetables and rice or high-protein pasta, topped with a yogurt-based sauce.
After work, tired: lean on our High Protein Meal Plan or Build A Meal Plan to take the decision off your plate.
Budget: eggs, canned tuna or salmon, bulk Greek yogurt, dry beans and lentils, edamame and high-protein pasta are strong picks per dollar.

Step 6: Use protein supplements to fill gaps

Convenient, not required

Protein powders and ready-to-drink shakes are a quick, portable, easily measured way to add protein when whole food isn't practical. They help most when time, appetite or dietary restrictions keep you short of your target.

Research supports them for building muscle with training. The Morton meta-analysis found protein supplementation added strength and muscle size during resistance training in healthy adults, with smaller effects as age increased.

They aren't essential, though, and whole foods remain the better foundation. Whole foods bring vitamins, minerals, fiber and other compounds a powder doesn't, and some supplements add sugar, artificial flavors or other additives. Read labels, especially if you watch ingredients or avoid allergens.

Whey and casein both come from milk. Whey is absorbed quickly and suits post-workout use, while casein is absorbed slowly and suits bedtime. People with lactose intolerance or a dairy allergy may need to avoid them. Plant-based powders work for vegans, vegetarians and people sensitive to dairy, and many blend several plant sources for a balanced amino acid profile. If purity is a concern, choose third-party-tested products.

Animal vs plant protein sources

Both work, for different reasons

Animal proteins are "complete," meaning they contain all nine essential amino acids. Fish and seafood add omega-3 fats that support heart health. Lean poultry and lean cuts of red meat deliver a lot of protein with less saturated fat than fattier or processed meats.

Plant proteins bring fiber, antioxidants and other plant compounds, and they're typically lower in saturated fat and free of cholesterol. Many are low in one essential amino acid on their own, but MedlinePlus notes you don't need to eat animal products to get all the protein you need, and essential amino acids don't have to be eaten at every meal: the balance over the whole day matters more.

A mix of lean animal proteins and a variety of plant proteins, mostly minimally processed, gets you the protein plus the broadest spread of everything else.

Special considerations for protein needs

When the general range shifts

Older adults: aim for the higher end. The PROT-AGE group recommends at least 1.0 to 1.2 g/kg a day for people over 65, 1.2 or more for those who are active, and 1.2 to 1.5 with acute or chronic illness.
Vegetarian or vegan: you can hit your target. Use tofu, tempeh, edamame, beans and lentils, soy yogurt, high-protein pasta and fortified alternatives.
High blood pressure or sodium limits: lean toward unsalted or low-sodium proteins and flavor with herbs and acid. See our electrolyte guide too.
Kidney disease, pregnancy, breastfeeding or other medical conditions: personalize protein with your clinician. Older adults with severe kidney disease who aren't on dialysis may need to limit protein, per PROT-AGE. This page is general information.

High-protein meals from Clean Eatz Kitchen

Where our meals fit, by the grams

If knowing your number isn't the problem and hitting it three times a day is, that's where ready meals help. Our current menu (October 2026) runs from 20 to 55 grams of protein a meal, with a median of 31.5 grams, and 20 of the 32 meals have 30 grams or more. Every meal's numbers are on our Nutrition Info page.

High Protein Meal Plan: 2 extra ounces of meat per meal, about 10 grams more protein and 50 more calories than the regular recipe, at roughly 500 calories or more a meal. From $63.00 for 6 meals.
Hall of Fame Meal Plan: a ready-made box of meals, from $94.95 for 10.
Breakfast Meal Plan: protein-forward breakfasts that heat in under 5 minutes, from $89.95 for 10.
High Protein Overnight Oats: 20 grams of protein per pouch for $3.49. Add milk and chill.
Protein Empanadas: 11 to 13 grams of protein each for $4.99, a snack-sized fill-in. Our breakfast sandwiches are $4.99 too.
Cauliflower Crust Protein Pizza: 20 to 25 grams of protein, $7.99. It's currently sold out, so check the page for its return.

Every meal plan order ships free to the contiguous 48 states, and there's no subscription.

Protein intake FAQ

Quick answers

How much protein should I eat per day?

The 2025 to 2030 Dietary Guidelines for Americans recommend 1.2 to 1.6 grams of protein per kilogram of body weight a day. Choose the low end for maintenance and go higher for fat loss or muscle gain, where research supports up to about 1.6 to 2.2 g/kg with strength training. Then personalize the number with the calculator.

How much can I use per meal? Do I "max out" at 30 g?

No hard cap. You absorb what you eat. In a 2023 study of 36 young men, 100 grams of protein after a workout produced a bigger and longer muscle-building response than 25 grams, lasting more than 12 hours. That's one small study, but the old 30-gram ceiling doesn't hold. Extra protein still counts toward your daily total.

Do I need protein shakes?

No, but they're convenient. Whole foods plus an optional scoop of protein powder can make it much easier to hit your number on busy days. Whole foods bring fiber, vitamins and minerals a shake doesn't, so treat the shake as a gap filler, not the base of your diet, and read the label for added sugar.

Is high protein bad for kidneys?

For healthy adults, research generally supports higher-protein diets in the ranges above. A 2018 meta-analysis of 28 trials found no difference in kidney function change between higher-protein diets and normal or lower ones in people without kidney disease. If you have kidney disease or risk factors for it, follow personalized medical advice.

What if I'm losing weight & feel hungry?

Increase your protein and vegetable volume, add fruit, and check that your calorie deficit isn't too aggressive. Protein tends to be filling, so moving toward the higher end of your range often helps. Use the Calorie Calculator to fine-tune your overall target if hunger stays high.

How do I calculate my daily protein needs?

Multiply your body weight in kilograms by 1.2 to 1.6, or your weight in pounds by 0.54 to 0.73. A 160-pound adult lands at about 87 to 116 grams a day. Adjust within the range for your activity level and goals, and go higher if you're strength training for muscle gain.

Do protein needs differ by age?

Yes. Older adults often need more protein to keep muscle and stay strong. The PROT-AGE group recommends at least 1.0 to 1.2 g/kg a day for people over 65, and 1.2 or more for those who are active. Aiming for the higher end of the general range is a sensible default for older adults.

How does activity level affect protein requirements?

Active people, especially those strength training or doing endurance sports, generally need more protein for muscle repair and recovery. The International Society of Sports Nutrition puts most exercising people at 1.4 to 2.0 g/kg a day, compared with 1.2 to 1.6 in the general guidelines. Training days are a good time for a protein-rich meal afterward.

Should I use my current or goal weight for calculations?

If you're well above or below your goal weight, use your goal weight to estimate protein needs. It gives a steadier, more realistic daily number. A 220-pound person aiming for 180 pounds would plan around 180, which at 1.2 to 1.6 g/kg is about 98 to 131 grams a day.

Does gender impact recommended protein intake?

Protein needs are based mainly on body weight and activity, not gender. A man and a woman of the same weight and training load land in the same range. Calorie needs often differ, which changes how much room protein takes up in the day, but the grams per kilogram stay the same.

Are there special considerations for pregnancy or medical conditions?

Yes. Pregnancy, breastfeeding, kidney disease and other medical conditions can change protein needs, so get a personal recommendation from your doctor or a registered dietitian. Older adults with severe kidney disease who aren't on dialysis, for example, may need to limit protein, an exception to the higher targets on this page.

How do I know if I'm getting enough protein?

Track your intake for a few typical days with a food journal or app and compare it with your target. Then watch how you feel and perform: energy, fullness between meals, strength in the gym and recovery. If you're consistently under, add one protein-rich snack before changing anything else.