Each container should have a gallon capacity, or size printed on it. Here's how we measure our can liners: The first number in our bag measurements is the width of the top of the bag when it is laid flat. This would be half of the circumference. The next measurement will be the length of the bag from top to bottom.
Example: a 38” x 60” bag will have a 76” (38” x 2) circumference and a top to bottom measure of 60”.
Simply use the methods below for gauging the circumference of your trash container to see if it would work. Also, keep in mind that you can go longer than a trash container, but you really do not want your bags to go shorter, as they will fall inside of your container. Just match the picture to your receptacle and it will tell you which size trash bag you need.
Bag Width: To calculate the proper width of the trash can liner for your container, simply divide the circumference of your container by 2.
Square Container Circumference: Circumference = sum of all four sides added together.
Round Container Circumference: Circumference = diameter multiplied by 3.14.
Bag length: (round & square containers) add the height of the container, plus 4-5 inches for overhang.