font loading for Top nav
Girls wearing M&S school uniform

Get the measure

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

Girls wearing M&S school uniform

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 Hip
    2-3 35½-38½ 20-21¼ 20-20½ 20½-21½
    3-4 38½-41 21¼-22 20½-21 21½-23
    4-5 41-43¼ 22-22¾ 21-21¾ 23-24
    5-6 43¼-45¾ 22¾-24 21¾-22 24-25
    6-7 45¾-48 24-24¾ 22-22½ 25-26½
    7-8 48-50¼ 24¾-26 22½-23 26½-27½
    8-9 50¼-52¾ 26-27 23-23¼ 27½-28¾
    9-10 52¾-55 27-28½ 23¼-24¼ 28¾-30¼
    10-11 55-57½ 28½-29½ 24¼-24¾ 30¼-31½
    11-12 57½-59¾ 29½-30½ 24¾-25 31½-33
    12-13 59¾-62¼ 30½-32¼ 25-25¾ 33-34½
    13-14 62¼-64½ 32¼-34 25¾-26½ 34½-36¼
    14-15 64½-65½ 34-36 26½-28 36¼-37¾
    15-16 65½-66 36-37½ 28-29 37¾-39½
    16-17 66-67 37½-39 29-29½ 39½-41
    17-18 67-67½ 39-41 29½-31½ 41-43
    Sizes for Blazers
    Age Chest Blazer Length
        Short Regular Long
    9-10 27-28½ 21 23 24
    10-11 28½-29½ 21½ 23½ 24¾
    11-12 29½-30½ 22½ 24 25½
    12-13 30½-32¼ 23½ 25 26¾
    13-14 32¼-34 24½ 26 27½
    14-15 34-36 24½ 26 27½
    15-16 36-37½ 25¾ 26½ 28
    16-17 37½-39 25¾ 26½ 28
    17-18 39-41 25½ 26¾ 28½
    Sizes for Trousers
    Age Waist Inside Leg
        Standard Short Long Extra Long
    2-3 20-20½ 15¾ 14 17½ 19
    3-4 20½-21 17¼ 15¾ 19 20½
    4-5 21-21¾ 19 17¼ 20½ 22
    5-6 21¾-22 20 18¼ 21¾ 23¼
    6-7 22-22½ 21¼ 19¾ 22¾ 24½
    7-8 22½-23 22½ 20¾ 24 25½
    8-9 23-23¼ 23½ 22 25 26¾
    9-10 23¼-24¼ 24¾ 23¼ 26½ 28
    10-11 24¼-24¾ 26 24½ 27½ 29
    11-12 24¾-25 27½ 25½ 28¾ 30¼
    12-13 25-25¾ 28½ 26¾ 30 31½
    13-14 25¾-26½ 29½ 28 31 32½
    14-15 26½-28 29½ 28 31 32½
    15-16 28-29 29½ 28 31 32½
    16-17 29-29½ 29½ 28 31 32½
    17-18 29½-31½ 29½ 28 31 32½
  •  
    View sizes for | |
     
    Sizes for Dresses, Jumpers & Cardigans, Shirts, Blouses & Polo Shirts, Skirts
    Age Height Chest Waist Hip
    2-3 35½-38½ 19-19½ 18-19 19¼-20
    3-4 38½-41 19½ -20 19-19½ 20-21¼
    4-5 41-43¼ 20½-21¼ 19½-20 21¼-22½
    5-6 43¼-45¾ 21¼-22½ 20-20½ 22½-23½
    6-7 45¾-48 22½-23¼ 20½-21 23½-24¾
    7-8 48-50¼ 23¼-24½ 21-21¼ 24¾-26
    8-9 50¼-52¾ 24½-25½ 21¼-22 26-27¼
    9-10 52¾-55 25½-26¾ 22-23 27¼-28¾
    10-11 55-57½ 26¾-28 23-23¼ 28¾-30
    11-12 57½-59¾ 28-29 23¼-23½ 30-31½
    12-13 59¾-62¼ 29-31 23½-24¼ 31½-33
    13-14 62¼-64½ 31-32½ 24¼-24¾ 33-34½
    14-15 64½-65½ 32½-34¼ 24¾-26½ 34½-36¼
    15-16 65½-66 34¼-36 26½-28 36¼-37¾
    16-17 66-67 36-37½ 28-29½ 37¾-39½
    17-18 67-67½ 37½-39 29½-31 39½-41
    Blazers – Slim Fit
    Age Chest Blazer Length
        Short Regular Long
    9-10 25½-26¾ 21 23 24
    10-11 26¾-28 21½ 23½ 24¾
    11-12 28-29 22½ 24 25½
    12-13 29-31 23½ 25 26¾
    13-14 31-32½ 24½ 26 27½
    14-15 32½-34¼ 24½ 26 27½
    15-16 34¼-36 25¾ 26½ 28
    16-17 36-37½ 25¾ 26½ 28
    17-18 37½-39 25½ 26¾ 28½
    Trousers – Slim Fit
    Age Waist Inside Leg
        Standard Short Long Extra Long
    2-3 18-19 15¾ 14 17½ 19
    3-4 19-19½ 17¼ 15¾ 19 20½
    4-5 19½-20 19 17¼ 20½ 22
    5-6 20-20½ 20 18¼ 21¾ 23¼
    6-7 20½-21 21¼ 19¾ 22¾ 24½
    7-8 21-21¼ 22½ 20¾ 24 25½
    8-9 21¼-22 23½ 22 25 26¾
    9-10 22-23 24¾ 23¼ 26½ 28
    10-11 23-23¼ 26 24½ 27½ 29
    11-12 23¼-23½ 27½ 25½ 28¾ 30¼
    12-13 23½-24¼ 28½ 26¾ 30 31½
    13-14 24¼-24¾ 29½ 28 31 32½
    14-15 24¾-26½ 29½ 28 31 32½
    15-16 26½-28 29½ 28 31 32½
    16-17 28-29½ 29½ 28 31 32½
    17-18 29½-31 29½ 28 31 32½
  •  
    View sizes for | |
     
    Sizes for Dresses, Jumpers & Cardigans, Shirts, Blouses & Polo Shirts, Skirts
    Age Height Chest Waist Hip
    2-3 35½-38½ 23-23½ 22½-23 23-24
    3-4 38½-41 23½-24½ 23-23¼ 24-25
    4-5 41-43¼ 24½-25 23¼-24 25-26½
    5-6 43¼-45¾ 25-26½ 24-24½ 26½-27½
    6-7 45¾-48 26½-27 24½-24¾ 27½-28¾
    7-8 48-50¼ 27-28½ 24¾-25 28¾-30
    8-9 50¼-52¾ 28½-29 25-26 30-31½
    9-10 52¾-55 29-30½ 26-26¾ 31½-32½
    10-11 55-57½ 30½-32 26¾-27 32½-34
    11-12 57½-59¾ 32-33 27-27½ 34-35½
    12-13 59¾-62¼ 33-35 27½-28½ 35½-37
    13-14 62¼-64½ 35-36½ 28½-29 37-38½
    14-15 64½-65½ 36½-38 29-30¼ 38½-39¾
    15-16 65½-66 38-39¾ 30¼-32 39¾-41¾
    16-17 66-67 39¾-41½ 32-33½ 41¾-43¼
    17-18 67-67½ 41½-43 33½-35 43¼-44¾
    Blazers – Plus Fit
    Age Chest Blazer Length
        Short Regular Long
    9-10 29-30½ 21 23 24
    10-11 30½-32 21½ 23½ 24¾
    11-12 32-33 22½ 24 25½
    12-13 33-35 23½ 25 26¾
    13-14 35-36½ 24½ 26 27½
    14-15 36½-38 24½ 26 27½
    15-16 38-39¾ 25¾ 26½ 28
    16-17 39¾-41½ 25¾ 26½ 28
    17-18 41½-43 25½ 26¾ 28½
    Trousers – Plus Fit
    Age Waist Inside Leg
        Standard Short Long Extra Long
    2-3 22½-23 15¾ 14 17½ 19
    3-4 23-23¼ 17¼ 15¾ 19 20½
    4-5 23¼-24 19 17¼ 20½ 22
    5-6 24-24½ 20 18¼ 21¾ 23¼
    6-7 24½-24¾ 21¼ 19¾ 22¾ 24½
    7-8 24¾-25 22½ 20¾ 24 25½
    8-9 25-26 23½ 22 25 26¾
    9-10 26-26¾ 24¾ 23¼ 26½ 28
    10-11 26¾-27 26 24½ 27½ 29
    11-12 27-27½ 27½ 25½ 28¾ 30¼
    12-13 27½-28½ 28½ 26¾ 30 31½
    13-14 28½-29 29½ 28 31 32½
    14-15 29-30¼ 29½ 28 31 32½
    15-16 30¼-32 29½ 28 31 32½
    16-17 32-33½ 29½ 28 31 32½
    17-18 33½-35 29½ 28 31 32½

Leg shapes

Skinny leg – a tapered leg for our most fashionable fit

Slim leg – a flattering narrow leg for a stylish, modern look

Regular leg – our classic straight-cut trousers are sharp and smart

Shop girls' trousers

Fits

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

Regular Fit – our classic and comfortable regular fit on the waist/body

Plus Fit – a wider cut through the waist and/or body for extra comfort

Shop girls' uniform

Lengths

We have a range of lengths available for children of all heights. Our trousers come in short, regular, long and extra long, all at increments of 4cm. Girls blouses and blazers come in regular and long, and skirts come in regular, long and extra long, also with 4cm difference

Shop girls' uniform