Size 0: Bust 31.5", Waist 23", Hips 34.5"
Size 2: Bust 32.5", Waist 24", Hips 35.5"
Size 4: Bust 33.5", Waist 25", Hips 36.5"
Size 6: Bust 34.5", Waist 26", Hips 37.5"
Size 8: Bust 35.5", Waist 27", Hips 38.5"
Size 10: Bust 36.5", Waist 28", Hips 39.5"
Size 12: Bust 38", Waist 29.5", Hips 41"
Size 14: Bust 39.5", Waist 31", Hips 42.5"
Size 16: Bust 41", Waist 32.5", Hips 44"
Size 18: Bust 43", Waist 34.5", Hips 46"
Size 20: Bust 45", Waist 36.5", Hips 48"
Keep in mind that these measurements are just a guide, and it's always best to have your bridesmaids try on dresses in person or order a size up if they are in between sizes. It's also important to consider alterations, as most dresses will need to be hemmed or taken in to ensure a perfect fit.
720 × 504
Source:https://www.kennedyblue.com/pages/bridesmaid-size-chart
531 × 630
Source:https://www.kennedyblue.com/pages/measurementguide
976 × 1257
Source:https://www.celebrationsbridalandprom.com/t1463/bridesmaid-size-charts.html
2369 × 3847
Source:https://www.jennyyoo.com/page/fit-guide
1463 × 900
Source:https://dessy.com/size-charts/
1500 × 1200
Source:https://shoprevelry.com/pages/revelry-size-chart
1637 × 3847
Source:https://www.jennyyoo.com/page/fit-guide
1024 × 731
Source:https://www.daisyformals.com/products/size-chart-please-choose-your-size
1069 × 800
Source:https://thebridescloset.com/bridesmaid-dresses/
1684 × 1192
Source:https://www.template.net/editable/100431/bridesmaid-dress-size-chart