How much protein do you need each day?
Your useful range depends on what you are asking protein to do. The adult RDA is a general-health baseline; dieting and regular strength training create different practical goals.
| Goal | Daily range | What it is for |
|---|---|---|
| General health baseline | 0.8 g/kg | Meeting the needs of nearly all healthy, generally inactive adults |
| Weight loss | 1.2–1.6 g/kg | Supporting fullness and helping preserve lean mass while eating fewer calories |
| Regular strength training | 1.6–2.2 g/kg | Supporting recovery and muscle growth |
If you are losing weight and strength training, choose the training range. If you are new to higher-protein eating, begin near the lower end. Protein works alongside total calories, training and sleep—it does not replace them.
What do those ranges look like at your body weight?
| Body weight | General health | Weight loss | Strength training |
|---|---|---|---|
| 60 kg | 48 g | 72–96 g | 96–132 g |
| 70 kg | 56 g | 84–112 g | 112–154 g |
| 80 kg | 64 g | 96–128 g | 128–176 g |
| 90 kg | 72 g | 108–144 g | 144–198 g |
| 100 kg | 80 g | 120–160 g | 160–220 g |
| 120 kg | 96 g | 144–192 g | 192–264 g |
These are starting ranges, not personalized prescriptions. If your result feels like an enormous jump, use the lower end rather than forcing the maximum. A registered dietitian can individualize the calculation.
Why is the weight-loss target higher than the RDA?
The RDA addresses basic needs for healthy adults. During weight loss, higher protein can be more filling and provides amino acids used to maintain lean tissue. Resistance training remains its strongest practical partner.
Read what protein is and what it does for a jargon-free guide to amino acids, complete proteins and muscle preservation.
Does more protein always work better?
No. Research supports a plausible band, not one perfect gram target. The upper end is optional, and protein should not crowd vegetables, fruit, whole grains and sources of healthy fat off your plate.
What does your protein target look like in food?
| Daily target | One possible day | Approximate total |
|---|---|---|
| About 80 g | Greek yogurt, lentils, tofu, edamame and milk | 82 g |
| About 100 g | Eggs, tuna, chicken breast and edamame | 99 g |
| About 120 g | Greek yogurt, chicken breast, cottage cheese and tuna | 120 g |
| About 150 g | Greek yogurt, eggs, chicken, salmon, cottage cheese and milk | 151 g |
Portions and brands vary, so check labels when precision matters. Our high-protein foods guide compares practical options.
How should you spread protein through the day?
Your daily total matters most. Spreading protein across meals can make the target easier to reach, but a larger serving is not “wasted.” The calculator’s three-, four- and five-occasion figures are planning examples, not limits.
How can you reach your number without overhauling your diet?
- Choose the lower end as your first checkpoint.
- Notice what an ordinary day already provides.
- Add one useful protein source to the meal that currently has the least.
- Recheck after a week and improve a second meal only if needed.
You do not need shakes or diet food. When you are ready, the macro calculator can fit protein alongside carbohydrates, fat and calories.
When should you get individual advice?
Do not use a general calculator to override medical nutrition advice. Ask a doctor or registered dietitian before a large change if you have kidney or liver disease, are pregnant or breastfeeding, are recovering from surgery, have an eating-disorder history, follow a therapeutic diet, or are under 18.
Protein calculator FAQ
How do I calculate how much protein I need?
Convert your weight to kilograms, then multiply by 0.8 for general health, 1.2–1.6 for weight loss, or 1.6–2.2 for regular strength training.
How much protein should I eat to lose weight?
Use 1.2–1.6 grams per kilogram of current body weight. Start near the lower end if that would already be a large increase. Protein can support fullness and lean mass, but weight loss still depends on overall energy intake.
Should I calculate protein from current weight or goal weight?
This calculator uses current weight because it is objective and easy to measure. At a higher body weight, treat the lower end as a practical start and ask a registered dietitian whether goal or adjusted weight is more appropriate for you.
Is the RDA enough protein?
The 0.8 g/kg RDA is designed to meet the needs of nearly all healthy adults. People dieting or training may benefit from more, which is why this calculator separates those goals.
Can I build muscle with the weight-loss range?
Possibly, especially if you are new to resistance training, but regular strength trainees should select the strength-training range. Training, enough total food and recovery matter too.
Can I get enough protein on a vegetarian or vegan diet?
Yes. Soy foods, beans, lentils, peas, seitan, nuts, seeds and higher-protein grains all contribute. A varied day usually covers amino-acid needs without pairing complete proteins at every meal.
Do I need a protein shake?
No. A shake can be convenient when appetite, time or preferences make the target difficult, but ordinary food works. Check serving size, ingredients and independent quality testing if you use a supplement.
Is a high-protein diet safe for your kidneys?
Healthy people and people with kidney disease are different populations. If you have chronic kidney disease, reduced kidney function or dialysis treatment, follow the target from your kidney-care team rather than this calculator.
Is there a limit to how much protein your body can absorb at once?
There is no simple per-meal cutoff after which protein disappears. Spreading intake can be practical and may support muscle protein synthesis, but the daily range matters more than perfect timing for most beginners.