Free Protein Calculator
Find how many grams of protein you should eat per day for your goal — fat loss, maintenance, or building muscle. Free, instant, no signup.
Why protein matters most for weight loss
Of the three macronutrients, protein is the one to anchor your diet around. It's the most filling per calorie, it costs the most energy to digest, and it protects the muscle you want to keep while losing fat.
Hitting your protein target without the math
Knowing your number is easy; tracking it at every meal is the hard part. MyDietJourney estimates protein, carbs, and fat from a single photo of your plate — so you can see how close you are to your target without weighing food or searching a database.
Skip the math entirely
Snap a photo of your meal and MyDietJourney's AI counts the calories and macros for you — in about 2 seconds. 7-day free trial.