Dress shirt size calculator
Find your dress shirt size in two minutes
Enter your neck and sleeve. You get the collar and sleeve size to shop for, like 16 34/35, plus a fit to try. Letter sizes change from brand to brand. Collar and sleeve numbers don’t.
You need: a soft tape measure. Optional: chest and waist, for a fit suggestion. No tape? Measure a shirt that fits you. Here’s how.
- Inches or centimeters
- Collar, sleeve and fit
- No sign-up
We may earn a commission when you buy through links on this page, at no extra cost to you. As an Amazon Associate, DressShirt.com earns from qualifying purchases. How we make money.
Your measurements
General guide. Brands cut differently, so check the brand's own chart before buying. Your measurements stay in your browser.
Got your size? Shop shirts that come in it
Brands that sell by collar and sleeve let you order the exact numbers above, instead of guessing between M and L.
How to measure: neck, sleeve, done
- Neck: wrap a soft tape around the base of your neck, where a collar sits. Slip one finger under the tape. Read the number.
- Sleeve: stand straight with your arm relaxed at your side. Measure from the bump at the center back of your neck, across the top of your shoulder, down the outside of your arm to your wrist bone. A second person makes this much easier.
- Optional, for fit: measure around the fullest part of your chest and around your natural waist (usually at the belly button).
Full walkthrough: how to measure for a dress shirt.
Guides by question
- Dress shirt size chart: collar and sleeve sizes explained, with inch and centimeter columns.
- US, UK and EU collar size conversion.
- Slim vs classic vs athletic fit: which cut matches your build.
- Collar types and which suits your face.
- Best non-iron dress shirts and the best dress shirt brands.
- What to wear to a wedding and to a job interview.
- How to iron a dress shirt.
Quick answers
What do the two numbers on a dress shirt mean?
The first number is the collar (neck) size in inches. The second is the sleeve length in inches, measured from the center of the back of your neck, over the shoulder, to the wrist. A 16 34/35 shirt has a 16-inch collar and fits a 34- or 35-inch sleeve.
Should I add room to my neck measurement?
Yes. Measure where the collar sits with one finger between the tape and your neck, then round up to the next half inch. If you measured snug with no finger, add half an inch.
Is a 16.5 neck a large?
Often, but not always. Letter sizes (S, M, L) are set by each brand, so a 16.5 collar can be a Large at one brand and an XL at another. Shop by collar and sleeve numbers when a brand offers them.
What if I’m between sleeve sizes?
Most people do best rounding to the nearer inch. Many brands sell paired sleeves like 32/33 or 34/35, which cover both.