How to Choose Kids’ Glasses by Age

Why Age-Based Sizing Works

Choosing glasses based on your child’s age is one of the easiest ways to ensure a proper fit. Tomato Glasses has developed a sizing chart tailored to typical face widths across different age groups.

Frame Size Guide by Age  

Age Range Recommended Frame Size (Lens Width in mm)

0–1 years 35–37 mm

1–2.5 years 37–38 mm

2.5–4 years 40–42 mm

4–7 years 43–45 mm

7–10 years 45–47 mm

10–16 years 47–52 mm

These sizes correspond to the lens width (e.g., 42 mm) and bridge width (e.g., 15 mm). Frame sizes are often shown like 42–15, meaning a 42 mm lens and a 15 mm bridge.

Why This Works for Parents

Simple: No measuring needed—just go by age.

Standardized: Tomato Glasses frames (Baby, Kids, Junior) are categorized by age.

Growth-friendly: Each size leaves room for facial growth without being oversized.