Children’s Size Guide
Use your child’s body measurements to find the most suitable FIZZI age size. All measurements below are in centimetres.
Age labels are a guide because children grow differently. If measurements fall across two sizes, choose the larger size for growing room.
Age-size reference
| FIZZI size | Height | Chest | Waist | Hip |
|---|---|---|---|---|
| 0–1 month | Up to 56 | — | — | — |
| 1–3 months | 56–62 | — | — | — |
| 3–6 months | 62–68 | — | — | — |
| 6–9 months | 68–74 | — | — | — |
| 9–12 months | 74–80 | — | — | — |
| 12–18 months | 80–86 | 49–51 | 50–51 | 52–54 |
| 18–24 months | 86–92 | 51–53 | 51–52 | 54–56 |
| 1–2 years | 80–92 | 49–53 | 50–52 | 52–56 |
| 2–3 years | 92–98 | 53–55 | 52–53 | 56–58 |
| 3–4 years | 98–104 | 55–57 | 53–54 | 58–60 |
| 4–5 years | 104–110 | 57–59 | 54–55 | 60–62 |
| 5–6 years | 110–116 | 59–61 | 55–57 | 62–65 |
| 7–8 years | 122–128 | 63–67 | 58–60 | 68–71 |
| 9–10 years | 134–140 | 69–73 | 61–64 | 73–78 |
| 11–12 years | 146–152 | 75–79 | 63–68 | 79–84 |
These are body-measurement reference ranges—not measurements of FIZZI garments—based on published UK childrenswear sizing conventions. Baby chest, waist and hip values are not included where the source does not provide them. Check the garment label or contact FIZZI for exact supplier-specific measurements.
Four quick measurements
Height
Measure barefoot from the top of the head to the floor. Use height before age when choosing a size.
Chest
Measure around the fullest part of the chest, keeping the tape level and comfortably loose.
Waist
Measure around the natural waistline without pulling the tape tight.
Hip
With feet together, measure around the fullest part of the hips.