Copyright © 2020 Babyzeit
| Age | Body length (cm) | Size |
| 1 month | up to 50 | 50 |
| 1-2 months | 51 – 56 | 56 |
| 2-3 months | 57 – 62 | 62 |
| ca. 6 months | 63 – 68 | 68 |
| ca. 9 months | 69 – 74 | 74 |
| ca. 12 months | 75 – 80 | 80 |
| ca. 18 months | 81 – 86 | 86 |
| 2 years | 87 – 92 | 92 |
| 3 years | 93 – 98 | 98 |
| 4 years | 99 – 104 | 104 |
| 5 years | 105 – 110 | 110 |
| 6 years | 111 – 116 | 116 |
| 7 years | 117 – 122 | 122 |
| Age | Head circum. | Hat sizes |
| Newborn | 33-35cm | 35 |
| First Month | 35-37cm | 37 |
| 1-2 Months | 37-39cm | 39 |
| 2-3 Months | 39-41cm | 41 |
| 4-5 Months | 41-43cm | 43 |
| 6-7 Months | 43-45cm | 45 |
| 8-12 Months | 45-47cm | 47 |
| up to 2 Years | 47-49cm | 49 |
| up to 3 years | 50-52cm | 51 |
| up to 4 years | 50-52 | 51 |
| up to 5 years | 50-53cm | 53 |
| up to 6 years | 50-53cm | 53 |
| up to 7 years | 52-56cm | 55 |
