| Age | Weight | Length | Head Circ. |
|---|---|---|---|
| 3 days | 8 lbs. 3.5 oz. | ||
| 2 weeks | 9 lbs. 0.5 oz. (75%ile) | 22″ (90%ile) | 14.5″ (10%ile) |
| 2 months | 11 lbs. 5 oz. (75%ile) | 24″ (95%ile) | 15.5″ (75%ile) |
| 4 months | 14 lbs. 6.5 oz. (75%ile) | 25.5″ (90%ile) | 16.75″ (85%ile) |
| 6 months | 16 lbs. 5 oz. (60%ile) | 26.5″ (80%ile) | 17.25″ (80%ile) |
| 9 months | 18 lbs. 1.5 oz. (40%ile) | 28.25″ (75%ile) | 17.75″ (75%ile) |
| 12 months | 18 lbs. 11 oz. (15%ile) | 29.25″ (60%ile) | 18″ (70%ile) |
| 15 months | 20 lbs. 1 oz. (10%ile) | 31″ (75%ile) | 18.5″ (75%ile) |
| 18 months | 23 lbs. 6.5 oz. (40%ile) | 32.5″ (75%ile) | 18.75″ (75%ile) |
| 2 years | 24 lbs. 13 oz. (25%ile) | 34.75″ (70%ile) | 18.75″ (75%ile) |
| 2 1/2 years | 29.5 lbs. (60%ile) | ~35.75″ (45%ile) | |
| 3 years | 32.6 lbs. (50%ile) | 37″ (50%ile) |