If you’re here because you’re trying to make one practical decision after losing your Collie, I’m so sorry. This guide keeps urn sizing clear and steady—so you can choose a capacity that fits comfortably without second-guessing it.
Quick note: This guide applies to both Rough Collies and Smooth Collies (they’re the same breed size—just different coats).
Quick answer
- Sizing rule: plan for about 1 cubic inch per pound of body weight.
- Typical adult Collie weight: often about 50–75 lb.
- Minimum capacity: about 50–75 cubic inches.
- Comfort range (roomier fit): about 60–90 cubic inches (adds ~20%).
- Most Collies fit best in a Large urn (60–100 cu in), especially if your dog was closer to 60–75 lb or you want the easiest closure with the inner bag.
Start shopping here: Pet Urns for Dogs. For most Collies, compare: Large Pet Urns (60–100 cu in) and Medium Pet Urns (25–60 cu in) (smaller adults).
The sizing rule (1 cubic inch per lb) and why we still size up
Urn capacity is measured in cubic inches. A practical starting point is one cubic inch of urn capacity for each pound of your dog’s weight. Many families choose a little more than the minimum because it helps the inner bag settle more easily, makes closure feel calmer, and leaves breathing room if weight is an estimate.
If you’d like to double-check your number, use the Pet Urn Size Calculator and compare it with the Complete Guide to Choosing the Perfect Urn Size.
Collie weight to urn capacity (cubic inches)
If you have a recent vet record, use that number. If not, use your best estimate and lean toward the comfort number—especially if you’re near a cutoff like 60 cubic inches.
| Your dog’s weight | Minimum capacity (1:1) | Comfort capacity (add ~20%) | Usually a good fit in |
|---|---|---|---|
| 50 lb | 50 cu in | 60 cu in | Large (often the calmer choice) |
| 55 lb | 55 cu in | 66 cu in | Large |
| 60 lb | 60 cu in | 72 cu in | Large |
| 70 lb | 70 cu in | 84 cu in | Large |
| 75 lb (upper end) | 75 cu in | 90 cu in | Large |
Which Funeral.com size category fits most Collies?
Most Collies fit best in a Large pet urn (60–100 cubic inches). The main reason is that the comfort estimate for many adults lands at or above 60 cubic inches. If your Collie was smaller (closer to 50 lb) and you choose a roomy listed capacity, Medium can work—but if you want the easiest closure and less risk of a tight fit, Large is usually the calmer choice.
Tip: Shop by the urn’s listed capacity. Some designs (especially photo urns or memory-box styles with compartments) can have less usable interior space than they appear to from the outside.
Size up if… (a simple rule that prevents a tight fit)
Size up if your dog’s weight is an estimate, your dog is a mix, your dog is big-framed or very muscular, you want room for mementos (tag, note, fur clipping), or you want the easiest closure with the inner bag. If your dog’s weight is close to the top of this size tier, choosing the next tier up is usually the calmer choice because it avoids a tight fit.
For Collies, the main “borderline” point is 60 cubic inches. If your comfort estimate is near 60 (for example, around a 50 lb dog), choosing Large usually removes the stress.
Sharing plan options (keepsakes and jewelry)
If more than one person wants a portion of ashes, a gentle plan is one primary urn plus keepsakes (or jewelry) so you don’t have to reopen the main urn repeatedly.
Helpful tools to confirm your choice
FAQ
What size urn do I need for a Collie?
Use about 1 cubic inch per pound. Many Collies fall around 50–75 lb, so the minimum range is about 50–75 cubic inches. For a calmer fit, many families choose about 60–90 cubic inches.
Is this the right guide for both Rough Collies and Smooth Collies?
Yes. Rough Collies and Smooth Collies are the same breed size—only the coat is different—so the cubic inch guidance is the same.
Should I choose Medium or Large for a Collie?
Large is the most common fit. Medium can work for smaller adults if the urn’s listed capacity meets your target, but if your comfort estimate is near 60 cubic inches (or higher), Large is usually the calmer choice.
What size urn do I need for a 50 lb Collie?
Start with 50 cubic inches minimum. For comfort, aim for about 60 cubic inches. Because 60 is a common cutoff, Large is often the easiest choice for a calm fit.
What size urn do I need for a 70 lb Collie?
Start with 70 cubic inches minimum. For a roomier fit, aim for about 84 cubic inches. A Large pet urn is typically the best match.
How much extra capacity should I add beyond the minimum?
Many families add about 15–20% for comfort. This helps the inner bag settle more easily and reduces the chance of a tight fit.
My dog’s weight is only an estimate. What should I do?
If weight is an estimate, choose extra capacity for comfort. If you’re between two sizes, the larger option is usually the calmer choice.
Can I include a collar tag, note, or small mementos in the urn?
Often, yes—just plan for it. If you want room for mementos, aim for your comfort target (or size up) so the fit doesn’t feel tight.
Can I split my Collie’s ashes between a main urn and keepsakes?
Yes. Many families choose one primary urn plus keepsake urns or cremation jewelry for sharing. This can also reduce how often you need to reopen the main urn.
