Lucky
Golden Retriever
FURSIZE
58cm · 22.8 in
CHEST 58 cm
NECK 41 cm
BACK 52 cm
Example card · fursize.com
DOG HARNESS AND COAT SIZING
Know your dog's size before you buy.
Measure one number, your dog's chest. We show which size fits in each brand, read straight from the maker's own chart.
Free. No account needed. Numbers are estimates until you measure.
WHAT IS A FURSIZE NUMBER
Your dog's chest, in centimeters. That is the whole idea.
Every harness and coat chart starts with chest girth, but each brand calls its sizes something different. A Medium here is a Large there. One plain number travels between brands, and the chart does the rest.
58
Chest girth in cm. Around the widest part of the ribcage, behind the front legs. Shown with inches beside it.
S M L
Then each brand's own chart. We copy the charts from the makers' pages and show the row that fits.
~
Estimates say so. From weight we can guess a number. A tape measure is the real thing, and we label which is which.
One number, any shop.
01Get 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.
02Share a size chart
Screenshot the chart in any shop or app. The browser add-on does it for you on the product page.
03See 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.
TRY IT
Slide your dog's weight. Watch the number move.
A quick feel for how weight turns into a FurSize number. It is a rough estimate. The tape measure has the last word.
Estimate from FurSize's early model. See the size chart for ranges.
FURSIZE7474 cm · 29.1 inMedium
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.
CALCULATOR
Dog size calculator
Weight in, size group and chest estimate out.
GUIDE
How to measure a dog for a harness
Where the tape goes, with pictures.
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.
GUIDE
How to measure for clothes
Coats and sweaters need back length too.
BRAND SIZE CHARTS
Harness size charts by brand
Copied from each maker's own page, with the link and the date we checked. Type your dog's chest and see the row that fits.
COMING SOON
The app and browser add-on are on the way.
The iPhone app guides the tape and saves your dog's card. The Chrome add-on shows your dog's size right on a shop's product page. Leave your email and we will tell you when they are ready. This site works without them.
One email when they launch. No newsletter.