I need a little help converting sq. feet of 57 stone to tons.

The retaining wall is 12' high x 10' wide x 530' long.

I believe 57 stone has a density of 120lbs/cu. feet.

I have taken 10' x 530', which is 5,300 sq. feet. Then I took the 5,300 x 12', which gives me 63,600 cu. feet.

Then I multiplied the 63,600 cu. feet by the density of the 57 stone (120lbs/cu. feet), and got 7,632,000.

I then divided the 7,632,000 lbs by 2000 to get a total of 3,816 tons.

This doesn't seem correct to me. Any ideas?

The retaining wall is 12' high x 10' wide x 530' long.

I believe 57 stone has a density of 120lbs/cu. feet.

I have taken 10' x 530', which is 5,300 sq. feet. Then I took the 5,300 x 12', which gives me 63,600 cu. feet.

Then I multiplied the 63,600 cu. feet by the density of the 57 stone (120lbs/cu. feet), and got 7,632,000.

I then divided the 7,632,000 lbs by 2000 to get a total of 3,816 tons.

This doesn't seem correct to me. Any ideas?

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