Dog Harness Size Calculator

Size up and use the adjustment straps.

Find harness size from chest girth.

Harness size M

Formula: size bands by chest girth (inches)

Step-by-step with your numbers:

1. Values used:

2. Chest girth = 22

4. Harness size = M

Did we solve your problem today?

Estimate harness size from your dog's chest girth (always check the brand's chart too).

The math behind it

Measure the chest girth just behind the front legs: <16" XS, 16–22" S, 22–28" M, 28–34" L, 34"+ XL.

22" girth → Medium.

Between sizes?

Size up and use the adjustment straps.