Cremation Urn Sizes – Complete Guide & What Size Do I Need?
Cremation Urn Sizes – Complete Guide & What Size Do I Need?
Standard Ash Volume in Australia
An adult typically produces 2.5 to 3.5 litres of ashes after cremation. This is the most important number to keep in mind when choosing an urn.
Urn Size Guide
- Keepsake urns: 0.1–0.5L — for a small symbolic portion of ashes
- Child urns: 0.5–2L — varies significantly by age
- Adult urns: 3–4L — suitable for most adults
- Companion urns: 5–7L+ — for two people
The Most Common Buying Mistake
Many families underestimate capacity and choose an urn that is too small for the full ashes. Always choose slightly larger than you think you need if you are unsure.
Sizing Rule of Thumb
Body weight does not directly equal ash volume. Urn sizing is based on cremation output, not the person’s weight. When in doubt, choose a standard adult urn (3–4L).
Sharing Ashes Between Family
If ashes will be divided among family members, consider combining one full-size adult urn with multiple keepsake urns — one for each family member who wants to keep a portion.
Shop by Size
Find the Right Size Urn at Premium Urns
Frequently Asked Questions
What size urn do I need for an adult?
Most adults require a 3–4 litre urn. Always choose slightly larger if you are unsure.
What if I choose the wrong size?
If the urn is too small, the remaining ashes can be kept in a secondary keepsake urn or temporary container.
Can ashes be divided into multiple urns?
Yes. Keepsake urns are specifically designed for sharing ashes among family members.
Do child urns come in different sizes?
Yes, child urn capacity varies significantly. Contact Premium Urns for guidance on the right size for your circumstances.