Ashes Urn Size Guide UK: What Size Urn Do I Need?
Choosing an ashes urn for a loved one is a deeply personal decision. Alongside selecting a style and material that reflects their memory, it's important to choose the correct urn size.
One of the most common questions we receive is: "What size ashes urn do I need?" In this guide, we'll explain how urn capacities work, how much cremated ashes typically weigh, and how to choose the right size urn for your needs.
How Are Ashes Urns Measured?
Ashes urns are usually measured by their internal capacity, expressed in litres. The larger the capacity, the more ashes the urn can hold.
As a general rule, an adult's cremated ashes require an urn with a capacity of around 3 to 3.5 litres.
At Serenity Urns, most of our full-sized adult urns and ashes caskets are designed to comfortably hold the ashes of an average adult.
How Much Do Human Ashes Weigh?
The amount of ashes produced after cremation varies depending on the individual's size and bone structure.
As a guide:
Body Weight| Recommended Urn Capacity
Up to 7 Stone (44kg)| 1.0 – 1.5 Litres
7 – 10 Stone (44–63kg)| 1.5 – 2.0 Litres
10 – 14 Stone (63–89kg)| 2.0 – 3.0 Litres
14 – 18 Stone (89–114kg)| 3.0 – 3.5 Litres
18+ Stone (114kg+)| 3.5 Litres+
These figures are approximate, and it's always advisable to choose a slightly larger urn if you're unsure.
What Size Urn Is Needed for an Adult?
For most adults, we recommend an ashes urn with a capacity of 3.1 to 3.4 litres.
This size is suitable for the vast majority of cremated remains and provides peace of mind that all ashes can be stored safely and respectfully.
Many of our most popular urns fall within this capacity range, making them ideal for families seeking a lasting memorial.
What Is a Companion Urn?
A companion urn is designed to hold the ashes of two people together.
These larger urns are often chosen by couples who wish to remain together after passing. Companion urns generally have a capacity of 6 litres or more, depending on the design.
What If I Want to Share Ashes Between Family Members?
Many families choose to divide ashes between several relatives.
In this case, you may wish to consider:
- Keepsake urns
- Mini urns
- Small memorial urns
- Ashes jewellery
- Sharing urns
These options allow family members to keep a meaningful portion of their loved one's ashes while the remainder is stored in a larger urn.
Choosing the Right Ashes Urn
When selecting an urn, consider:
Capacity:
Ensure the urn has enough space to hold the ashes comfortably.
Location:
Will the urn be displayed in the home, placed in a columbarium, buried, or used for scattering ashes?
Material:
Popular options include:
- Ceramic urns
- Wooden ashes caskets
- Metal urns
- Handcrafted memorial urns
Design:
Choose a style that reflects your loved one's personality and memory.
Frequently Asked Questions
Can an urn be too small?
Yes. If an urn does not have sufficient capacity, it may not hold all of the ashes. Always check the capacity before purchasing.
Is it better to buy a larger urn?
If you are uncertain, choosing a slightly larger urn is usually the safest option.
How much ash is produced after cremation?
Most adult cremations produce between 2.5 and 3.5 litres of ashes, depending on body size and bone density.
Can I divide ashes into multiple urns?
Yes. Many families choose keepsake urns or sharing urns so that several family members can keep a portion of the ashes.
Find the Perfect Ashes Urn
At Serenity Urns, we offer a carefully selected range of premium ashes urns, wooden ashes caskets, companion urns and keepsake urns designed to provide a lasting tribute to your loved one.
If you're unsure which size is right for your needs, we're always happy to help and guide you towards the most suitable option.
