Women's Bottoms (in inches)

Euro Size US Size Bust Below Natural Waist Hip
34 24 2 / XXS 23 - 24 33.5 - 34.5
36 26 4 / XS 25 - 26 35 - 36
38 28 6 / S 26.5 - 27.5 36.5 - 37.5
40 30 8 / M 28 - 29 38 - 39
42 32 10 / L 29.5 - 30.5 39.5 - 40.5
44 33 12 / XL 31 - 32 41 - 42
46 34 14 / XXL 33 - 34 43 - 44
How to Measure 
Use a fabric measuring tape, and if possible, have another person help you. 

Bust
Wrap the tape under your arms around the fullest part of your bust. 

Waist
Measure around your natural waistline, halfway between your waist and hip. For low-rise styles, measure slightly below your natural waistline. 

Hip
Standing with your heels together, measure around the fullest part of your hips.