font loading for Top nav
Search
Boys wearing M&S school uniform

Get the measure

Make sure his uniform fits perfectly
ahead of the new school term with
our easy-to-use size and fit guide

For good measure

1. Chest
Measure the chest at the fullest part, placing the tape close up under the arms

2. Waist
Measure the natural waistline

3.Collar
Measure around the base of the neck where the collar sits

4. Inside leg
Measure from the crotch to where the trouser hem falls on the shoe

5. Height
Without shoes, place feet together flat on the floor, and measure from the top of the head to the ground

HANDY TIP
If you’re buying a school blazer, it’s also a good idea to measure from the centre of the neck to the hemline

View In:
 
View sizes for | |
 

Sizes for Dresses, Jumpers & Cardigans, Shirts, Blouses & Polo Shirts, Skirts

 
Age Height Chest Waist Collar
2-3 35½-38½ 20-21¼ 20-20½ 11
3-4 38½-41 21¼-22 20½-21 11
4-5 41-43¼ 22-22¾ 21-21¾ 11
5-6 43¼-45¾ 22¾-24 21¾-22 11½
6-7 45¾-48 24-24¾ 22-22½ 12
7-8 48-50¼ 24¾-26 22½-23¼ 12
8-9 50¼-52¾ 26-27 23¼-24 12¼
9-10 52¾-55 27-28½ 24-24¾ 12½
10-11 55-57½ 28½-29½ 24¾-26 13
11-12 57½-59¾ 29½-30½ 26-26¾ 13½
12-13 59¾-62¼ 30½-32¼ 26¾-27¾ 14
13-14 62¼-64½ 32¼-34 27¾-28¾ 14½
14-15 64½-67 34-35½ 28¾-30 15
15-16 67-69¼ 35½-37 30-32 15½
Age Chest Blazer length
2-3 20-21¼ 17½
3-4 21¼-22 18
4-5 22-22¾ 19
5-6 22¾-24 19¾
6-7 24-24¾ 20¾
7-8 24¾-26 21½
8-9 26-27 22½
9-10 27-28½ 23¼
10-11 28½-29½ 24½
11-12 29½-30½ 25
12-13 30½-32¼ 26¼
13-14 32¼-34 27
14-15 34-35½ 28¾
15-16 35½-37 30¼
Age Waist Standard (Inside Leg)
2-3 20 - 20½ 15¾
3-4 20½ - 21 17½
4-5 21 - 21¾ 19
5-6 21¾ - 22 20
6-7 22 - 22½ 21¼
7-8 22½ -23¼ 22½
8-9 23¼ -24 23½
9-10 24 - 24¾ 24¾
10-11 24¾- 26 26
11-12 26 -26¾ 27½
12-13 26¾ -27¾ 28½
13-14 27¾ -28¾ 29½
14-15 28¾ -30 31
15-16 30-32 31

Leg shapes

Super skinny leg – our narrowest leg yet with added stretch in the fabric

Skinny leg – a tapered leg for our most fasionable cut

Slim leg – a flattering trouser that is narrower in the leg

Regular leg – our classic straight cut trouser shape is sharp and smart

Shop boys' trousers

Fits

Regular fit – our classic regular fit

Slim fit – a narrower cut through the waist and/or body

Plus fit – wider cut through the waist and/or body

Shop boys' school uniform

Lengths

Our trouser lengths for boys are short, regular, long and extra long going up in 4cm increments. Our shirt lengths for boys are regular and long, also with a 4cm difference.

Shop boys' school uniform