What size helmet does a 3 year old need?

Step 1: Make sure the helmet is the right size.

Age	Head Circumference (in cm)
12 months	46
2 years	48
3-5 years	51
6-10 years	53

What is the safest bike helmet for a toddler?

Healthline Parenthood’s picks for the best toddler helmets

Giro Scamp MIPS Helmet. SHOP NOW AT Amazon.
Specialized Mio MIPS Toddler Helmet. SHOP NOW AT Specialized.
Nutcase Baby Nutty Helmet. SHOP NOW AT Amazon.
Kamugo Helmet with Protective Pad Set.
Joovy Noodle Helmet.
Lazer Lil Gekko Helmet (with MIPS)
Uvex Hero Helmet.

What size helmet should a 4 year old wear?

Everything you should know before you purchase your kids bike helmet – including size chart

AGE	BOY	GIRL
3.5 YEARS	50 CM – 19.7 INCH	49 CM – 19.3 INCH
4 YEARS	50.5 CM – 19.9 INCH	49.5 CM – 19.5 INCH
4.5 YEARS	51 CM – 20.1 INCH	50 CM – 19.7 INCH
5 YEARS	51 CM – 20.1 INCH	50 CM – 19.7 INCH

What size bike helmet does a 4 year old need?

50th Percentile Head Circumference Example Helmets

Approx. Age	Girl Head Size (cm)	Boy Head Size (cm)
12 mo. 18 mo. 2 yr.	45 46.5 47	46 47.6 48
2.5 yr. 3 yr. 3.5 yr.	48 49 49	49 49 50
4 yr. 4.5 yr. 5 yr.	49.5 50 50	50.5 51 51
6 yr. 7 yr. 8 yr.	51 52 53	52 53 54

What size helmet does a 4 year old need?

Everything you should know before you purchase your kids bike helmet – including size chart

AGE	BOY	GIRL
3 YEARS	49 CM – 19.3 INCH	49 CM – 19.3 INCH
3.5 YEARS	50 CM – 19.7 INCH	49 CM – 19.3 INCH
4 YEARS	50.5 CM – 19.9 INCH	49.5 CM – 19.5 INCH
4.5 YEARS	51 CM – 20.1 INCH	50 CM – 19.7 INCH

Can a 9 month old wear a helmet?

If your baby has a large flat spot that isn’t getting better by about 4 months of age, your doctor may prescribe a helmet. For a helmet to be effective, treatment should begin between 4 and 6 months of age. This will allow for the helmet to gently shape your baby’s skull as they grow.