Introduction
A poorly fitted collar can cause discomfort, chafing, or even safety hazards. Whether you're buying your puppy's first collar or upgrading to a luxury leather one, getting the right size is essential. This guide will show you exactly how to measure your dog for a perfect fit every time.
Why Proper Fit Matters
Too tight? Can cause breathing difficulties, skin irritation, and discomfort.
Too loose? Risk of slipping off during walks, getting caught on objects, or your dog escaping.
Just right? Comfort, safety, and style — all in one.
What You'll Need
- A flexible measuring tape (or a string + ruler)
- A pen and paper to record measurements
- Your dog (preferably standing calmly)
Step-by-Step Measuring Guide
Step 1: Measure the Neck
- Find the widest part of your dog's neck (usually where the collar naturally sits)
- Wrap the measuring tape around the neck, keeping it snug but not tight
- Add 2 fingers' width (about 1-2 inches) for comfort
- Record this measurement
Pro Tip: If using string, mark where it meets, then measure with a ruler.
Step 2: Measure for Width
Width preference depends on your dog's size and comfort:
| Dog Size | Recommended Width | Example Breeds |
|---|---|---|
| Small (under 20 lbs) | ½" – ¾" | Chihuahua, Yorkie, Pomeranian |
| Medium (20-60 lbs) | 1" – 1.25" | Beagle, Cocker Spaniel, Bulldog |
| Large (60-100 lbs) | 1.5" – 2" | Labrador, Golden Retriever, German Shepherd |
| Extra Large (100+ lbs) | 2"+ | Great Dane, Mastiff, Saint Bernard |
Step 3: Check the Fit
Once you have the collar, perform the Two-Finger Test:
- Place the collar on your dog's neck
- Slide two fingers between the collar and neck
- If your fingers fit comfortably — perfect fit
- If you can't fit two fingers — too tight
- If you can fit three or more — too loose
Common Sizing Mistakes
- ❌ Measuring over fur — Measure close to the skin for accuracy
- ❌ Using old collar length — Old collars stretch over time
- ❌ Guessing by breed — Every dog is unique; always measure
- ❌ Forgetting growth — Puppies need room to grow
Puppy Sizing Tips
Growing puppies need special consideration:
- Measure weekly during growth periods
- Choose collars with multiple adjustment holes
- Consider a collar that's slightly larger with room to adjust
- Check fit frequently as puppies grow fast
Our Size Guide
| Size | Neck Circumference | Typical Weight |
|---|---|---|
| XS | 8" – 12" | Under 10 lbs |
| S | 12" – 16" | 10 – 25 lbs |
| M | 16" – 20" | 25 – 50 lbs |
| L | 20" – 24" | 50 – 80 lbs |
| XL | 24" – 28" | 80+ lbs |
Conclusion
A properly fitted collar is the foundation of your dog's comfort and safety. Take the time to measure correctly, and you'll have a collar that fits like it was custom-made.
Need help choosing the right size? Browse our Complete Collection with detailed sizing guides for each product.