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Gap Size Charts

Measuring Tips

Here are some tips to help you order the correct size. If you don't have a measuring tape, use a piece of string and hold it alongside a ruler.

Things to Remember

Choose your maternity size based on your pre-pregnancy size. The maternity sizing allows room for a standard weight gain of 25-30 pounds.

Bust

Lift your arms up your sides and measure around your body, crossing over the fullest part of your chest.

Sleeves

With your arm bent and placed at your hip, measure from the back of your neck to your shoulder, elbow, and wrist.

Gap Maternity Tops, Outerwear & Dresses Size Chart

Measurement Unit: US (inch) | World (cm) | Both

Label	US	EU	UK	Japan	Bust	Hip	Sleeve
XXXS	0000	26	00	0000	29¹/₄ inch 74 cm	32¹/₄ inch 82 cm	30³/₈ inch 77 cm
XXS	000 - 00	28 - 30	0 - 2	000 - 00	30¹/₄ - 31¹/₄ inch 77 - 79 cm	33¹/₄ - 34¹/₄ inch 84 - 87 cm	30¹/₂ - 30³/₄ inch 77 - 78 cm
XS	0 - 2	32 - 34	4 - 6	0 - 2	32¹/₄ - 33¹/₄ inch 82 - 84 cm	35¹/₄ - 36¹/₄ inch 90 - 92 cm	30.785 - 31¹/₈ inch 78 - 79 cm
S	4 - 6	36 - 38	8 - 10	4 - 6	34¹/₄ - 35¹/₄ inch 87 - 90 cm	37¹/₄ - 38¹/₄ inch 95 - 97 cm	31¹/₄ - 31¹/₂ inch 79 - 80 cm
M	8 - 10	40 - 42	12 - 14	8 - 10	36¹/₄ - 37¹/₄ inch 92 - 95 cm	39¹/₄ - 40¹/₄ inch 100 - 102 cm	31³/₄ - 31.785 inch 81 - 81 cm
L	12 - 14	44 - 46	16 - 18	12 - 14	38³/₄ - 40¹/₄ inch 98 - 102 cm	41³/₄ - 43¹/₄ inch 106 - 110 cm	32.185 - 32¹/₂ inch 82 - 83 cm
XL	16 - 18	48 - 50	20 - 22	16 - 18	42 - 43³/₄ inch 107 - 111 cm	45 - 46³/₄ inch 114 - 119 cm	32³/₄ - 33.185 inch 83 - 84 cm
XXL	20 - 22	52 - 54	24 - 26	20 - 22	45³/₄ - 47.74 inch 116 - 121 cm	48³/₄ - 50³/₄ inch 124 - 129 cm	33¹/₂ - 33.785 inch 85 - 86 cm

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Length Conversion

Note: 1 inch = 2.54 cm, 1 cm = 0.394 inch, 1 foot = 30.48 cm, 1 cm = 0.033 foot, 1 foot = 12 inch, 1 inch = 0.083 foot

Essential Tools

If you do a lot of online apparel shopping, accurate body measurement using a tape measure is a must. The actual tape you choose doesn’t matter that much. This measuring tape set has two double-sided, 60-inch / 150 cm, durable tape measure in pink and black. They are small and light pocket-size measuring tapes, and they have accurate, large and clear markings in both inches and centimeters, which are very easy and convenient to read. They are also great for body measurement, sewing, tailoring, weight loss tracking, or measuring any curved surface.

How to measure without a ruler or tape measure?

If you don't have a ruler or tape measure handy, you can try to measure with a standard credit card, which has a width of 3 ⅜ inch or 8.56 cm and a height of 2 ⅛ inch or 5.4 cm.