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Welcome to Mothercare

size guide

maternity buyers guide

Maternity fitting and sizing guide

We fit our garments on mums to be so that we fully understand her needs during pregnancy, making sure the clothes look good and are comfortable.

Check your measurements against our size chart to ensure you are buying the right size.

Remember that we are all different shapes & sizes and sometimes we can sit in the middle of a size. Trying a size above or below can help achieve the most comfortable fit for you.

Our well designed maternity clothes are versatile and often suitable for post-pregnancy.

8 10 12 14 16 18 20
European size 36 38 40 42 44 46 48
Dual size guide S M L XL
Full bust (pre pregnancy) 82 87 92 97 102 107 112
Full bust 86 91 96 101 106 111 116
Dual sized bust 86 - 91 96 - 101 106 - 113 111 - 116
Waist (pre pregnancy) 64.5 69.5 74.5 79.5 84.5 89.5 94.5
Bump circumference (early stages - 3rd trimester) 87 - 96 92 - 101 97 - 106 102 - 111 107 - 116 112 - 121 117 - 126
Low hip (pre pregnancy) 89 94 99 104 109 114 119
Low hip 93 98 103 108 113 118 123
Dual sized hip 93 - 98 103 - 108 113 - 118 118 - 123
Thigh 52 55 57.5 61 64 67 70
Inside leg (petite) 74
Inside leg (standard) 79
Inside leg (longer length) 84

measurement shown are in cm's

How to measure maternity clothing

bust measurement

Bust - measure bust at fullest point

waist measurement

Waist / Bump Circumference - measure waist at fullest point

low hip measurement

Low hip - you can find 20cm below your waist

How to measure your maternity bra

Your bra measurement - 2 steps

how to measure your bra

  • You need to establish two measurements the under bust and the cup size. Ideally measurement should be taken over your current bra but without your top on.
  • A) under bust you need to take a firm measurement under the bust holding the tape measure in a straight line. Working in inches add 4 to the measurement if it is even and add 5 if it is odd. e.g. you measure 31 inches so add 5 to make it 36 inches.
  • B) Over bust / cup size - you need to measure loosely around the fullest part of the cup ensuring the tape measure is level at the front and the back. The difference between measurement A equals the cup size or measurement B. e.g. you measure 40 around the bust (B) so the difference between 36 (or A) is 4 or a D cup. Please see chart below.
  • Bra fittings are widely avaliable throughout the high street.
  • You should be measured for a nursing bra around 36 - 38 weeks into pregnancy.
Mothercare bra band size
inches 32 34 36 38 40 42 44 46
cm 70 75 80 85 90 95 100 105
Cup size
size A B C D DD E F G
inches 0 1 2 3 4 5 6 7
cm 10 - 12 13 - 15 15 - 17 18 - 20 20 - 22 23 - 25 26 - 28 28 - 30
Trying on and trouble shooting

band too big

band too big - band riding up at the back

Go down a band size, but up a cup size. 36D band too big, try 34DD.

band too small

band too small - straps parallel and strees on the hook and eye

Go up a band size, but down a cup size. 34D band too small, try 36C.

correct band size

correct band size

Band should run straight, right around the body. Straps should appear in a "v" shape.

cups too big

cups too big - fabric sagging and gaping at the cups

Keep the band size the same, but go down a cup size. 36D cups too big, try 36C.

cups too small

cups too small - breasts not encased in the cups

Keep the band size the same, but go up a cup size. 36D cups are too small, try 36DD.

correct cup size

correct cup size

You should be able to slide two fingers under the band, cup edge, underarm and straps. The front of the bra should sit close to the chest.

Hosiery sizing

UK & EUR Skirt size / Hip m/ments
Size 8-10 (36-38) Size 12-14 (40-42) Size 16-18 (44-46) Size 20+ (48+)
Height 88 - 92 cms

(34.5 - 36 inches)

96 - 101 cms

(38 - 40 inches)

106 - 111 cms

(42 - 44 inches)

117 - 123 cms

(46 - 48 inches)

150 - 160cms

(4ft 11" - 5ft 3")

S M M L
163 - 170cms

(5ft 4" - 5ft 7")

M M L XL
173 - 178cms

(5ft 8" - 5ft 10")

M L L XL
178 - 183cms

(5ft 10" - 6ft)

L L XL XL