Construction

Pipe Weight Calculator

Estimate the weight of a hollow steel pipe.

Outer diameter

Wall thickness

Length

Density (lb/in³)

Calculated Output

Weight 2.673

Weight 1.212

Formula: weight = π (ro² − ri²) × length × density

Step-by-Step Breakdown

1. Values used:

2. Outer diameter = 1

3. Wall thickness = 1

4. Length = 1

5. Density = 0.2836 lb/in³

7. Weight = 2.673

8. Weight = 1.212

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The math behind it

Cross-section area = π × (outer radius² − inner radius²); volume = area × length; weight = volume × density.

4 in OD, 0.25 in wall, 10 ft of steel ≈ 100 lb.

Inner radius?

Outer radius minus the wall thickness.