(In case you're not familiar with these sizes... a size 27 is generally a size 4, and a size 30 is generally a size 10. I range between a size 10 and a size 12 on bottom, so the 30's and 31's are usually just about right for me.)
Waist Size: XS or extra small means 28–30 inches (71–76 cm), S or Small means 30–32 inches (76–81 cm), M or Medium means 32–34 inches (81–86 cm), and L or Large means 34–36 inches (86–91 cm).
Women's Jeans Size Chart
If you ask yourself what size is a 30-inch waist in women's jeans, then use this chart to find out that it corresponds to a US Size 12 or EU 40. Find out more about women's jeans sizes and how to measure to find the perfect fit.
Jeans sizes are indicated in inches, for example 30/32. The first number indicates the waist size and the second indicates the inside leg length. Determine your inch size by measuring jeans that fit well. The inside leg length is measured from the top of the inside leg to the bottom opening.
Jeans Size Calculator
For example, a size 10 is a jeans size 28. However, if you find you're in-between sizes, a waist 29 pair of jeans equates to a size 11. A size 12 would wear a jeans size 30, but a size 31 in jeans equates to a size 13 in regular UK sizing.
US 10 - either UK 12 (Waist 29”/30" and Bust 37”/38") or UK 14 (Waist 31”/32" and Bust 39”/40") US 12 - approximately UK 14 (Waist 31”/32" and Bust 39”/40") US 14 - approximately UK 16 (Waist 33"/34" and Bust 41"/42") US 16 - approximately UK 18 (Waist 35”/36" and Bust 43”/44")
If you ask yourself, what size is a 30 inch waist in women's jeans, then use this chart to find out that it corresponds to a US Size 12 or EU 40.
A US size 6 is equivalent to an Australian size 10 for women's clothing.