Size of Urn	Pet Weight	Cubic Inches	Cups	Ounces
Keepsake		4 c.i	1/3 c.	2.2 oz.
Small	up to 12 lbs.	14.4 c.i	1 c.	8 oz.
Medium	up to 40 lbs.	50.5 c.i.	3.5 c.	28 oz.
Large	up to 90 lbs.	101 c.i.	7 c.	56 oz.
X-Large	up to 140 lbs.	144.3 c.i.	10 c.	80 oz.
Custom	> 140 lbs.

*	Industry Standard is approximately 1 pound (lb.) = 1 cubic inch (c.i.)