Protein Formula: About 10 to 35% of your diet should be protein, so the daily protein amount needed is calculated by determining your daily caloric needs, then dividing by 4 (4 calories per gram of protein) and then multiplying by .225 (the approximate percentage of your diet which should be protein).

Protein Definition Our free online protein calculator makes it “whey” easier to calculate how much protein you should have in your diet than calculating by hand! To learn how many grams of protein you should consume each day just enter in your weight, height, age, gender, and activity level. Find out how much protein you need and then be sure to check out the rest of our online health calculators!

How to Calculate Protein Let's be honest - sometimes the best protein calculator is the one that is easy to use and doesn't require us to even know what the protein formula is in the first place! But if you want to know the exact formula for calculating protein then please check out the "Formula" box above.