Mulch and Soil Conversion Chart for Landscapers
You can use this Square Feet of Coverage by Depth Chart in place of a mulch calculator.
In the example below 2 cu. yds. of mulch installed 2″ deep will cover 324 sq. ft.
| Cu. Yds. | 2” | 3” | 4” | 5” |
| 2 | 324 | 216 | 162 | 108 |
| 4 | 648 | 432 | 324 | 216 |
| 6 | 972 | 648 | 486 | 324 |
| 8 | 1296 | 864 | 648 | 432 |
| 10 | 1620 | 1080 | 810 | 540 |
| 12 | 1944 | 1296 | 972 | 648 |
| 14 | 2268 | 1512 | 1134 | 756 |
| 16 | 2592 | 1728 | 1296 | 864 |
| 18 | 2916 | 1944 | 1458 | 972 |
| 20 | 3240 | 2160 | 1620 | 1080 |
| 22 | 3564 | 2376 | 1782 | 1188 |
| 24 | 3888 | 2592 | 1944 | 1296 |
| 26 | 4212 | 2808 | 2106 | 1404 |
| 28 | 4536 | 3024 | 2268 | 1512 |
| 30 | 4860 | 3240 | 2430 | 1620 |
Calculation Notes:
1 cubic yard = 27 cubic feet = 9 bags / 3 cu. in size
Yards needed = sq. ft. x depth (in.) divided by 324
Coverage = cubic yards x 324 divided by depth (in.)
2 cu. bag covers 8 sq. ft. (3″ deep) or 12 sq. ft. (2″)
3 cu. bag covers 12 sq. ft. (3″ deep) or 18 sq. ft. (2″)
