Mulch Calculator
Enter the length and width of the area to be covered, then the desired depth (standard depth for mulch is 3"), then click Calculate. The calculator will tell you approximately how many cubic yards of mulch you'll need (based on the most common coverage of 100 sq. ft./cubic yard, 3" deep).
Gravel & Sand Calculator
Enter the length and width of the area to be covered, then the desired depth (standard depth is 2"), then click Calculate. The calculator will tell you approximately how many tons of material you'll need (based on the most common coverage of 90 sq. ft./ton, 2" deep).