Best budget collar
Budget / $Blueberry Pet adjustable collar medium
Budget collar comparison for medium neck ranges.
Amazon / $ / Basic ID wear
Size category guide
Small Dog Collar Size Guide
Start with small dog sizing patterns, then confirm your dog's real measurements against the product brand chart.
Interactive tool
Check collar size
Answer a few fields, then compare the result with the brand chart before ordering.
Start here
Find the right starting size
Enter breed, weight, and any measurements you have.
No login neededMeasurement-first
Use breed and weight for a fast estimate. Add measurements for a tighter recommendation, then confirm against the brand chart.
Recommended size
medium starting point
Why this size
This is a broad weight-based estimate. Measurements will produce a more useful result.
Confidence
Breed or weight estimate
Before buying
Compare this result with the brand's chart and fit notes.
Measure this next
Measure neck circumference next for a tighter result.
Size up if
Size up if the adjusted collar cannot pass the two-finger fit test without sitting at the last hole.
Avoid if
Avoid collars that can slip over the ears or tighten against the throat.
- Start with your dog's measurements whenever possible.
- Always compare this estimate with the specific brand's size chart before buying.
Fit checklist
- Two fingers fit under collar.
- Collar cannot slip over ears.
- Buckle and tag ring are sturdy.
- No hair loss or rubbing.
Options by budget
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Product picks are starting points. Confirm size, price, and availability on Amazon before buying.
Wide everyday collar
Balanced / $$Max and Neo wide collar medium
Balanced medium-dog collar search with wider webbing and reflective options.
Amazon / $$ / Medium dogs
Breed examples
Small breeds to compare
Bichon Frise collar size
12-18 lb typical adult range
Border Terrier collar size
11-15 lb typical adult range
Boston Terrier collar size
12-25 lb typical adult range
Cairn Terrier collar size
13-18 lb typical adult range
Cardigan Welsh Corgi collar size
25-38 lb typical adult range
Cavalier King Charles Spaniel collar size
13-18 lb typical adult range
Corgi collar size
22-38 lb typical adult range
Coton de Tulear collar size
8-15 lb typical adult range
Dachshund collar size
11-32 lb typical adult range
French Bulldog collar size
16-28 lb typical adult range
Havanese collar size
7-13 lb typical adult range
Jack Russell Terrier collar size
13-17 lb typical adult range
Lhasa Apso collar size
12-18 lb typical adult range
Miniature Schnauzer collar size
11-20 lb typical adult range
Pembroke Welsh Corgi collar size
22-31 lb typical adult range
Pug collar size
14-18 lb typical adult range
Rat Terrier collar size
10-25 lb typical adult range
Russell Terrier collar size
9-15 lb typical adult range
More category guides