Protein Calculator
Estimate daily dietary protein needs for adults based on body weight, activity level, and metabolic energy expenditure.
Result
Recommended daily protein intake ranges from major health organizations:
American Dietetic Association (ADA):
-- grams/day
Centers for Disease Control and Prevention (CDC):
-- grams/day
Based on 10% - 35% of estimated daily calorie expenditure
World Health Organization (WHO) Safe Lower Limit:
-- grams/day
| Age Group | Baseline RDA (g/day) |
|---|---|
| Ages 1 - 3 | 13 g |
| Ages 4 - 8 | 19 g |
| Ages 9 - 13 | 34 g |
| Ages 14 - 18 (Girls) | 46 g |
| Ages 14 - 18 (Boys) | 52 g |
| Ages 19 - 70+ (Women) | 46 g |
| Ages 19 - 70+ (Men) | 56 g |
| Pregnancy & Lactation Stage | Extra Protein | Extra Energy |
|---|---|---|
| Pregnancy Trimester 1 | +1 g/day | 375 kJ/day |
| Pregnancy Trimester 2 | +10 g/day | 1,200 kJ/day |
| Pregnancy Trimester 3 | +31 g/day | 1,950 kJ/day |
| Lactation (First 6 months) | +19 g/day | 2,800 kJ/day |
| Lactation (After 6 months) | +13 g/day | 1,925 kJ/day |