Dog Harness Size Converter

Some harness sizes convert to another brand cleanly. Others can't be converted at all, because the two brands measure different things: chest girth, body weight, or both. Pick the brand and size your dog already wears below to see which other brands actually correspond, and which ones don't.

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Why some brands can't convert

A harness sized by chest girth (Ruffwear) and one sized by weight (Help 'Em Up, PetSafe CareLift) aren't measuring the same thing — a girth number can't be turned into a weight number without your dog's actual weight, and vice versa. Walkabout sizes by abdomen and upper-thigh circumference, which none of the other seven brands publish at all, so it never converts into anything else here. GingerLead publishes no numeric bands whatsoever — its own fitting method is a fabric "towel test," not a chart. When two brands do share a measurement, we still only call it a match if one brand's whole band sits inside the other's; if the bands only partly overlap, that's flagged as "overlaps but doesn't match," because your dog could be in the piece that doesn't line up.