How to Measure Your Dog for the Perfect Fit | Ultimate Pet Sizing Guide

Houw to Measure your Dog for the perfect Fit

Choosing the right size is essential for your dog’s comfort, safety, and happiness. Because every dog has a unique body shape, we always recommend using your dog's actual measurements rather than choosing a size based solely on breed, age, or weight.

Follow our step-by-step pet measuring guide below to find the ideal size for dog collars, harnesses, apparel, and accessories.

What You Need

  • Soft fabric measuring tape (recommended)
  • Your dog standing naturally on a flat surface
  • A treat to keep your pup happy and still!

Step-by-Step Dog Measuring Instructions

1. Measure Your Dog’s Neck (Collar Size)

Where to measure: Wrap the soft measuring tape around the middle of your dog's neck, right where a standard collar normally sits.

Pro Tips:

    • Keep the tape snug but never tight.
    • Leave enough space to comfortably slide two fingers between the tape and your dog's neck.
    • Avoid measuring too high near the head or too low near the shoulders.

Example: If your dog's neck measures 14 inches, select a size that accommodates 14 inches within its adjustable range.

2. Measure Your Dog’s Chest / Girth (Most Important for Harnesses)

Where to measure: Measure completely around the widest part of your dog's ribcage, located directly behind the front legs.

Pro Tips:

    • Ensure your dog is standing straight and looking forward.
    • Keep the measuring tape level and parallel to the ground all the way around.
    • This is the most critical measurement for dog harnesses, life jackets, winter coats, raincoats, and shirts.

3. Measure Your Dog’s Back Length (Apparel Size)

Where to measure: Measure along the spine starting from the base of the neck (where the collar rests) down to the base of the tail.

Pro Tips:

    • Do not include the tail in your measurement.
    • Make sure your dog is standing squarely on all fours.
    • If your dog has a thick or fluffy coat, gently press the fur down for an accurate reading.

4. Weigh Your Dog

Use your dog's current weight as a helpful confirmation tool alongside your tape measurements. Never rely on weight alone, as two dogs of the exact same weight can have vastly different chest widths, bone structures, and body types.

Pro Tips for Size Selection

Between Sizes? If your dog falls right between two sizes, we recommend sizing up for better comfort and mobility.

Fluffy Coats: For heavy-coated breeds, allow a little extra breathing room for thick fur.

Broad/Muscular Builds: If your dog has a deep chest or a muscular frame, prioritize the chest measurementabove all others.

Adjustable Gear: Look for adjustable straps to accommodate growing puppies or seasonal coat changes.