You would need 31.88 cubic yards of topsoil to cover 855 sq feet at 6 inches deep.
It will cover 324 sq/ft or 36 sq/yrd at 1" thick It will cover 162 sq/ft or 18 sq/yds at 2" thick It will cover 108 sq/ft or 12 sq/yds at 3" thick It will cover 81 sq/ft or 9 sq/yds at 4" thick.
To find the volume of soil needed, first convert the depth to feet (3 inches = 0.25 feet). Then, multiply the area (400 sq ft) by the depth (0.25 ft) to get the volume: 400 sq ft * 0.25 ft = 100 cubic ft. Therefore, you will need 100 cubic ft of soil to cover 400 sq ft at 3 inches deep.
"Rule of thumb, 1.5 tons equals a cubic yard. 1 ton covers approximately: 220 sq ft at 1 in depth 110 sq ft at 2 in depth 73 sq ft at 3 in depth 36 sq ft at 6 in depth 22 sq ft at 9 in depth" east haven landscape 2008.
The Southern Ocean covers approximately 7.8 million square miles.
0.148645 hectares.
60000 sq ft = 5574 sq metres, approx.
9,364,602 sq feet (approx).
0.08 hectares = 8611.13 sq feet
0.073 hectares = 7857.65 sq ft (to 2 dp).
60,000 square feet = 1.38 acres
17.2 hectares = 0.172 sq km.
120 sq metres = 0.012 hectares
One Hectare = 2.47 acres. One Hectare = 10000 sq. meters or 107600 sq. feet. One Acre = 4050 square meters or 43560 sq. feet
1.69 hectares = 16900 sq metres
An average football ground is approx 73460 sq feet. 40 hectares is 4.30556e6 sq feet which means 58.6 or about 60 football fields would fit in.
3.25 hectares