Clothing Size Converter: From Inches to Letter Sizes
Letter sizes hide the numbers behind them. This converter puts the numbers back: a measurement in inches, mapped to the standard letter range for that garment area.
What is the Clothing Size Converter?
Enter a measurement in inches and choose whether it is a chest or waist measurement, and the tool maps it to a letter size with standard ranges. Letter sizes vary by brand and cut, so use the result to narrow your choice, then check the brand's size chart.
How to use it
- Enter the measurement in inches.
- Choose chest or waist.
- Click Find My Size for the letter size.
Worked example
A 40-inch chest measurement maps to size L, since the standard chest range for L is 40 to 42 inches.
Why do letter sizes vary between brands?
Because each brand sets its own ranges and cuts, so the same letter can fit differently from one label to another.
Frequently asked questions
Should I measure over clothes?
No. Measure over light clothing or underwear, with the tape snug but not tight, for the most useful result.
What if I am between sizes?
Choose the larger size for comfort, or check the brand's exact measurements for that garment.