Biology

Dog Harness Size Calculator

Size up and use the adjustment straps.

Find harness size from chest girth.

Calculated Output

Harness size M

Formula: size bands by chest girth (inches)

Step-by-Step Breakdown

1. Values used:

2. Chest girth = 22

4. Harness size = M

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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.