How big should an urn be for an adult?

Allow one cubic inch of capacity per pound of body weight before cremation. A 200 cubic inch urn is the standard adult size and suits most adults up to roughly 200 lb.

Do the ashes go directly into the urn?

Usually not. The crematory returns the remains in a sealed bag, and that bag is placed inside the urn intact. You can transfer the remains loose if you prefer, but there is no need to.

Can I buy an urn somewhere other than the funeral home?

Yes. The FTC Funeral Rule requires funeral providers to accept a container you bought elsewhere without adding a fee for using it.

How long does an urn take to arrive?

Most orders ship within one business day. If you have a service date coming up, call (877) 281-0752 and we will confirm timing before you order.

How much do cremation urns cost?

Solid quarried stone urns bought direct typically run a fraction of funeral-home pricing. Keepsakes start lowest, full-size stone sits in the middle, and companion urns cost most because of the material volume. Shipping is free over $100 in the contiguous US.

Do cremation urns need to be sealed?

Not for a home display — a threaded lid or recessed base plate is enough. Seal the lid with a bead of clear silicone only for burial, a niche, or scattering at sea.

Are ashes heavy? What will the urn weigh?

An adult's remains weigh roughly 4–8 lb. A full-size marble or granite urn adds another 6–12 lb, so plan for a shelf or mantel that can carry 15–20 lb.

Buyer's guide

Cremation urns for human ashes: what to know before you buy

Most families buy an urn once, usually within a few days of a death, with very little information to work from. This guide covers the four decisions that actually matter — size, material, how it closes, and where it will live — so you can order with confidence.

6 min read

Start with capacity, not looks

Cremated remains take up roughly one cubic inch of space for every pound of healthy body weight before cremation. A 180 lb adult needs an urn rated for about 180 cubic inches; the industry standard "adult" urn holds 200 cubic inches, which covers most people with room to spare.

If you are close to the limit, size up. An urn that is slightly too large is invisible. An urn that is slightly too small means a return at the worst possible time.

Adult / full size: 180–220 cubic inches
Medium or youth: 100–160 cubic inches
Keepsake or sharing: 3–50 cubic inches
Companion (two people): 350+ cubic inches

Material changes how the urn ages

Natural stone — marble, granite, onyx — is quarried and turned from a solid block, so the veining runs all the way through rather than sitting on the surface as a printed or cast finish. Stone is heavy, which is part of why it feels permanent on a shelf, and it does not fade in daylight.

Hardwood is lighter, warmer in a room with other wood furniture, and easier to engrave. Cultured marble and resin pieces cost less up front but are poured rather than quarried, and the finish can yellow with sun exposure.

How the urn closes matters for burial and travel

Ashes are returned from the crematory in a sealed plastic bag inside a temporary container. That bag goes into the urn as-is, so a threaded lid or a recessed base plate is enough for a home display.

For burial in a cemetery plot or a columbarium niche, ask the cemetery whether they require an urn vault — many do. For air travel, the TSA requires that the container be screenable by X-ray; dense stone and metal are not, so a temporary wood or plastic container is the safer choice for the flight itself.

What a fair price looks like

Funeral homes routinely mark urns up several times over. Buying direct is legal and normal — under the FTC's Funeral Rule, a funeral provider must accept an urn you supply and cannot charge a handling fee for it.

At Memory Urns a solid quarried stone urn generally costs a fraction of the same piece bought through a funeral home, and shipping is free on orders over $100 in the contiguous US.

Common questions

How big should an urn be for an adult?: Allow one cubic inch of capacity per pound of body weight before cremation. A 200 cubic inch urn is the standard adult size and suits most adults up to roughly 200 lb.
Do the ashes go directly into the urn?: Usually not. The crematory returns the remains in a sealed bag, and that bag is placed inside the urn intact. You can transfer the remains loose if you prefer, but there is no need to.
Can I buy an urn somewhere other than the funeral home?: Yes. The FTC Funeral Rule requires funeral providers to accept a container you bought elsewhere without adding a fee for using it.
How long does an urn take to arrive?: Most orders ship within one business day. If you have a service date coming up, call (877) 281-0752 and we will confirm timing before you order.
How much do cremation urns cost?: Solid quarried stone urns bought direct typically run a fraction of funeral-home pricing. Keepsakes start lowest, full-size stone sits in the middle, and companion urns cost most because of the material volume. Shipping is free over $100 in the contiguous US.
Do cremation urns need to be sealed?: Not for a home display — a threaded lid or recessed base plate is enough. Seal the lid with a bead of clear silicone only for burial, a niche, or scattering at sea.
Are ashes heavy? What will the urn weigh?: An adult's remains weigh roughly 4–8 lb. A full-size marble or granite urn adds another 6–12 lb, so plan for a shelf or mantel that can carry 15–20 lb.

Sources and further reading

FTC Funeral Rule — Consumer Guide
Confirms a funeral home must accept an urn you bought elsewhere, with no handling fee.
TSA — Travelling with cremated remains
Screening rules for carrying an urn through airport security.
NFDA — Cremation statistics and consumer resources
US cremation rate and funeral cost data updated each year.

Shop the urns in this guide

Marble urns

Quarried stone, hand-finished

Granite urns

Dense and durable

Wood urns

Warm, engravable hardwood

Every urn

Browse the full collection

Not sure what you need? Call (877) 281-0752 or see the size guide.

Keep reading

Sizing

What size urn do I need?

Guide

How to choose a cremation urn

Materials

Marble, granite or wood: choosing an urn material