Choose the right size cremation urn

Cremation Urn Volume Guide With Calculator

Ashes cremation urns come in a variety of sizes. The size you choose will depend on the amount of ashes you have, as well as your budget and the space you have available. A small urn may be sufficient for a child or pet, while a larger urn may be needed for an adult.

Because ashes are skeletal remains, the volume is determined by the height of the deceased more than the weight.

A rule of thumb is that 1kg of body weight will result in about 36mL of ashes. This equates to 1lb producing 1 cu in of ashes.

You may also want to choose a size that is appropriate for the number of people who will be sharing the urn. If you are unsure what size to choose, you can always consult with a funeral director or cremation specialist. They will be able to help you select an urn that is both practical and aesthetically pleasing.

For most adults, an urn that is at least 3 litres or 183 cubic inches should be sufficient.


Cremation Urn Size/Volume Calculator

Enter the body mass (in pounds or kilograms) to calculate the required urn volume:

 


Otherwise, the table below is a guide: 

Weight Urn Size
Lbs Kgs Cu In Ltr
25 11 25 0.4
50 23 50 0.8
75 34 75 1.2
100 45 100 1.6
125 57 125 2.0
150 68 150 2.5
175 79 175 2.9
200 91 200 3.3
225 102 225 3.7
250 113 250 4.1
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