Construction

Rip Rap Calculator

rip rap stone for erosion control.

Length

Width

Depth

Density (lb/ft³)

Price per ton ($)

Calculated Output

Volume 0.037

Weight 0.0825

Total cost ($) 0

Formula: tons = L × W × (depth/12) × density ÷ 2000

Step-by-Step Breakdown

1. Values used:

2. Length = 1

3. Width = 1

4. Depth = 12

5. Density = 165 lb/ft³

6. Price per ton = 0 $

8. Volume = 0.037

9. Weight = 0.0825

10. Total cost = 0$

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The math behind it

Volume (ft³) = length × width × depth. Weight = volume × density; tons = weight ÷ 2,000.

Enter your area and depth — results update instantly.

How is weight found?

Cubic feet × material density (lb/ft³), then divided by 2,000 for US tons.