We list sewing patterns by bust/waist size instead of the sewing pattern size because:
- Sewing pattern sizes continue to change
- Ready to wear clothing sizes (modern rack sizes) don’t match sewing pattern sizes
- Sewing pattern sizes are a higher number than the ready to wear sizes
Here are some examples of measuring sewing charts
1950’s measurement charts
Here is a sewing pattern chart from the 1960’s to show you how the sewing pattern sizes changed in 20’s years.