Calculate: A Compost Calculator and Quick Conversions

Landscape Calculator

How many cubic yards do you need? Use our handy coverage calculator to give an approximate volume to fill or cover a given area. We also created a "How Much Do I Need?" grid that helps you order the right amount of soil, each and every time. Download it here.

Input (*required)	Results
Length (ft.) *	Answer in Two Cubic Foot Bags
Width (ft.) *	Answer in Three Cubic Foot Bags
Depth (in.) *	Answer in Cubic Feet
	Answer in Cubic Yards

Quick Conversions and Tables

Quick Conversions

One Cubic Yard equals 27 Cubic Feet One Cubic Foot equals 7.481 Gallons 1.5 cu.ft. equals 11.22 gallons 2 cu.ft. equals 14.96 gallons

One Cubic Foot Should Fill Approximately

48-56 Four-Inch Pots 16-18 Six-Inch Pots 6-11 Eight-Inch Pots or Hanging Baskets 3 Twelve-Inch Pots or Hanging Baskets

About 3.5 cu.ft. of Mix…

…for One Half Wine Barrel

1 Cubic Yard of Compost Covers

Square Feet	at	Depth
324 sq. ft.	at	1″ depth
162 sq. ft.	at	2″ depth
108 sq. ft.	at	3″ depth
81 sq. ft.	at	4″ depth
65 sq. ft.	at	5″ depth
54 sq. ft.	at	6″ depth

Cubic Yds. Required to Cover 1,000 sq ft…

Layer (Inches)	Greater Than	Cubic Yards
1/4 inch layer	≥	0.75yd³
1/2 inch layer	≥	1.5yd³
1 inch layer	≥	3.0yd³
1 1/2 inch layer	≥	4.5yd³
2 inch layer	≥	6.0yd³
2 1/2 inch layer	≥	7.5yd³
3 inch layer	≥	9.0yd³

Cubic Yds. Required for Various Depths of Coverage…

Square Feet	1/32″	1/16″	1/8″	1/4″	1″	2″	3″
1,000	0.10	0.19	0.39	0.78	3	6	9
5,000	0.48	0.97	1.94	3.88	15.5	31	46.5
10,000	0.97	1.94	3.88	7.75	31	62	93
43,560 (1 acre)	4.22	8.44	16.88	33.76	135	270	405
100,000	9.69	19.38	38.75	77.5	310	620	930