Cremation Urn Options: Types, Sizes, and What to Consider

After a direct cremation, the remains come back in a temporary container—usually a basic plastic box or a cardboard container. It's functional, but most families eventually transfer the ashes to something permanent. The options range from a simple wooden box to custom-made memorial jewelry, and the choice depends on what you plan to do with the remains long-term.

Sizing: The One Measurement That Matters

An adult's cremated remains typically occupy 180–220 cubic inches. The standard rule is one cubic inch of urn capacity per pound of body weight before death. A person who weighed 180 pounds needs an urn of at least 180 cubic inches.

Buy slightly larger than you think you need. A too-small urn means leaving some remains behind in the temporary container. Most standard adult urns are 200–220 cubic inches, which fits the majority of adults comfortably.

Standard Urns (for Display or Storage)

These are the urns most people picture: a vessel designed to hold the full volume of remains for display on a mantle, shelf, or home altar, or for placement in a columbarium niche.

Materials: Brass, ceramic, stone, marble, wood, glass, and cloisonné are the most common. Brass and stone are the most durable. Wood is warm and understated. Ceramic and glass offer the most variety in artistic design.

Price range: $50–$500 for mass-produced options. Handmade or artist-designed urns can run $500–$2,000 or more.

What to look for: A secure lid (threaded or sealed, not just sitting on top), a wide enough opening to transfer ashes from the temporary container, and a finish that works with where you plan to put it.

Keepsake Urns (for Dividing Remains)

Small urns designed to hold a portion of the ashes—typically 3 to 25 cubic inches. Families use these when splitting remains among siblings, giving a small portion to a grandchild, or keeping a portion at home while interring or scattering the rest.

Materials: Same range as standard urns, scaled down. Mini brass urns, small wooden boxes, and glass vials are common.

Price range: $15–$100 each.

A set of four to six keepsake urns costs less than one standard urn and solves the problem of multiple family members wanting to keep part of the remains.

Biodegradable Urns (for Scattering or Burial)

Designed to break down in water or soil. Used for ocean scattering (the urn dissolves as it sinks), freshwater scattering, or earth burial without a vault.

Water urns: Made from compressed salt, sand, or plant-based materials. They float briefly (for a ceremony), then dissolve over minutes to hours.

Earth urns: Made from recycled paper, natural clay, or organic materials. They decompose in soil over weeks to months. Some include a seed compartment so a tree or plant grows from the burial site.

Price range: $30–$300.

Memorial Jewelry

A small quantity of ashes (a pinch) is sealed inside a pendant, locket, ring, or bracelet. The jewelry looks like any other piece—the compartment is hidden.

Some companies offer ashes pressed into a glass bead or incorporated into a resin setting. Others compress carbon from the ashes into lab-grown diamonds (a process that takes several months and costs $3,000–$10,000 depending on carat size and cut).

Memorial jewelry works for people who want to carry a physical connection but don't want an urn on display. It's also a practical option when multiple family members want a memento—each piece holds a very small portion.

Columbarium-Specific Requirements

If you're placing the urn in a cemetery columbarium niche, check the niche dimensions before buying an urn. Niches are standardized in some cemeteries and irregular in others. A common interior size is 11" wide × 11" tall × 15" deep, but measure first. Some cemeteries also have material restrictions—glass urns may not be permitted in outdoor niches exposed to temperature changes.

The Temporary Container Is Fine, Too

There is no general requirement to transfer ashes to a permanent urn, but check any cemetery, columbarium, or local rules that apply to your eventual disposition. The temporary container from the cremation facility holds the remains securely and indefinitely. Some families keep it as-is, sometimes placing it inside a decorative box or bag. There is no general timeline or obligation.

Our Direct Cremation Guide covers the full range of what to do with cremated remains—from urn selection and home storage to scattering, burial, and memorial options.