Dog photo
Lucky
Golden Retriever
FURSIZE
58cm · 22.8 in
CHEST 58 cm
NECK 41 cm
BACK 52 cm
Example card · fursize.com
THE SIZE NUMBER FOR DOGS
Know your dog's size before you buy.
Every dog gets one FurSize number. Check it against any harness, coat or collar chart and see what fits.
Free. No account needed. Numbers are estimates until you measure.
One number, any shop.
- 01
Get your dog's number
Tell us the breed and weight for an estimate in under a minute. Or measure the chest with your phone camera for the real thing.
- 02
Share a size chart
Screenshot the chart in any shop or app. The browser add-on does it for you on the product page.
- 03
See what fits
We name one size and show the room at the chest, neck and back. If it is a close call, we say so.
Free tools
Start here. Each one ends with a number you can use.
CALCULATOR
Puppy weight calculator
How big will your puppy get, and which size to buy now and later.
GUIDE
How to measure a dog for a harness
Where the tape goes, with pictures.
CALCULATOR
Dog size calculator
Weight in, size group and chest estimate out.
CHART
Dog size chart
Weight bands with a rough chest range.
GUIDE
How should a harness fit
The two-finger check, before the first walk.
Measure with your phone. Done in a minute.
The app guides the tape, saves your dog's card and checks any size chart you share. The browser add-on shows your dog's size right on the product page.
Store links appear here when the apps are live.