Protein Calculator
Calculate daily protein requirements
About the Protein Calculator
Protein needs scale with your body weight and how hard you train, and "get enough protein" is useless without a number. This calculator gives you that number: enter your weight and pick the activity profile that matches you, and it returns a daily protein target in grams.
It serves a spectrum of goals through four profiles — from a sedentary baseline of 0.8 grams per kilogram up to 2.2 grams for serious strength athletes. Someone recovering from training, a runner building endurance, or a lifter chasing muscle each gets a target grounded in their actual demand rather than a generic recommendation.
How to Use the Protein Calculator
- Input your body weight in kilograms.
- Pick the profile that fits you, from sedentary to high training / bodybuilding.
- Read your recommended daily protein intake in grams.
- Spread that total across your meals through the day.
Why Use ToolForge’s Protein Calculator
- Four activity profiles map to established protein guidelines (0.8 to 2.2 g/kg), so the target reflects your real training demand, not a one-size figure.
- It bases the number on body weight, the variable that protein needs actually scale with.
- The result is a concrete daily gram target you can divide across meals.
- It runs instantly and locally with no account.
Frequently Asked Questions
How much protein do I need per day?
It depends on activity: roughly 0.8 g/kg of body weight for sedentary people, rising to around 1.6 g/kg for muscle gain and up to about 2.2 g/kg for intense strength training. This calculator applies the multiplier for the profile you choose.
Can I eat too much protein?
For healthy people, intakes in the ranges this tool suggests are well tolerated. Very high intakes offer little extra benefit for most goals and displace other nutrients, so there is usually no reason to exceed the high-training range unless advised.
Does it matter when I eat protein?
Total daily protein matters most, but spreading it across meals — rather than loading it all at once — helps your body use it efficiently for muscle repair. Aim to include a protein source at each meal to reach the daily target.
Should I use my current or goal body weight?
Most guidelines use current body weight. If you carry significant excess fat, some prefer to base protein on a target or lean weight, but for general purposes entering your current weight gives a reasonable target.
