Garden calculators

April 16, 2019

Photo by Lisa Fotios from Pexels

Handy online conversions and charts for all your planting needs.

cubic yards

Spacing	10 sq. ft.	15 sq. ft.	25 sq. ft.	50 sq. ft.	100 sq. ft.
5" x 6"	48	72	120	240	480
5" x 8"	36	54	90	180	360
6" x 6"	40	60	100	200	400
6" x 7"	34	51	86	171	343
6" x 8"	30	45	75	150	300
7" x 8"	26	39	65	130	260
8" x 8"	23	34	57	113	225
8" x 9"	20	30	50	100	200

1 (one) lb. of bluegrass will cover	667 sq. ft.
1 (one) lb. of common mixed seed (40% Kentucky bluegrass, 40% creeping red fescue, 20% perennial ryegrass) will cover	200 sq. ft.
1 (one) lb. of perennial rye will cover	143 sq. ft.
1 (one) lb. of Chewings fescue will cover	286 sq. ft.
1 (one) lb. of Colonial bent will cover	2000 sq. ft.
1 (one) lb. of creeping bent will cover	2000 sq. ft.

Spaced 4" apart will cover	11 sq. ft.
Spaced 6" apart will cover	25 sq. ft.
Spaced 8" apart will cover	44 sq. ft.
Spaced 10" apart will cover	70 sq. ft.
Spaced 12" apart will cover	100 sq. ft.
Spaced 15" apart will cover	156 sq. ft.
Spaced 18" apart will cover	225 sq. ft.
Spaced 24" apart will cover	400 sq. ft.
Spacing is figured centre to centre.

Gallons per minute	Cubic feet per minute	Gallons per hour	Gallons per 24 hr.	Acre ft. per 24 hr.
100	13.37	6000	144,000	.44
200	26.74	12,000	288,000	.88
300	40.10	18,000	432,000	1.32
500	66.80	30,000	720,000	2.20
900	120.30	54,000	1,296,000	3.96

All above numbers for the water conversion chart are based on standard industry U.S. gallon calculations.

The following conversion factors can be used if necessary: