Girls’ swimwear sizing

Girls’ Size Guide

Sizes for the smallest members of the family. Our girls’ swimsuits are designed to feel comfortable for hours of sun and water. Use age as a starting point, then check height and weight to confirm.

Girls’ Size Chart

Size	Age	Height cm	Height in	Weight kg	Weight lb
0/6 m	0–6 mo	60–67	23″–26″	5–8	11–18
6/12 m	6–12 mo	67–76	26″–30″	8–11	18–24
12/18 m	12–18 mo	76–82	30″–32″	10–12	22–26
2 / 2T	2 yr	85–92	33″–36″	12–14	26–31
4 / 4T	3–4 yr	95–104	37″–41″	14–17	31–37
5	4–5 yr	104–110	41″–43″	16–19	35–42
6	5–6 yr	110–118	43″–46″	18–22	40–48
8	7–8 yr	122–130	48″–51″	22–28	48–62
10	9–10 yr	134–142	53″–56″	28–35	62–77
12	11–12 yr	146–154	57″–61″	35–43	77–95
14	13–14 yr	156–164	61″–65″	43–52	95–115

How to Choose

Use age as a starting point, then check height and weight. If your daughter is taller or stronger for her age, choose the larger size so the swimsuit feels comfortable and lasts longer.

Girls’ swimsuits include UPF 50+ sun protection.
Many styles have adjustable straps for a better fit.
If you are between sizes, size up.
Need a size we do not list? Custom sizes are available on request.

Shop Mommy & Me Sets →

Need help choosing? Email info@lainoswimwear.com with your child’s measurements.