To calculate the cubic inches inside a jar or other cylinder shaped object, you will need to know the diameter and height of the jar then apply the following formula:

Trying to figure out how many jelly beans there are in a mason jar or gallon jug? Here’s our method of getting the number, but you can jump to the bottom and just use the calculator too.

To calculate the area of a circle, use the following formula:

Let’s say our circle is 8 inches in diameter. Half of the circle’s diameter equals it’s radius (8 / 2 = 4). Square the radius (4 * 4 = … Continue Reading →

The Topsoil Calculator will help you figure out how much topsoil or potting soil to buy, with a breakdown in terms of bags or yards. It will convert your measurements into cubic feet and yards so you … Continue Reading →