Pipe Linear Foot Calculator
By the Linear Feet Calculator Team | Reviewed by plumbing and utility installation professionals | Updated June 2026
Whether running a new water line, installing irrigation, or laying conduit, pipe is always measured and priced by the linear foot. Enter the distance and select your pipe type to estimate the total linear footage and material cost.
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Linear Feet for Pipe
Calculate linear feet for pipe
Straight-line distance from source to endpoint
Pipe Cost Comparison by Material
| Material | Material $/LF | Installed $/LF |
|---|---|---|
| PVC (Schedule 40) | $0.50 – $2 | $2 – $4 |
| PEX | $1 – $3 | $3 – $6 |
| Copper (Type L) | $4 – $8 | $8 – $15 |
| Galvanized Steel | $2 – $5 | $4 – $9 |
| HDPE | $1 – $3 | $2.50 – $6 |
Costs are national averages including labor, 2026. Trenching cost is separate — add $5-10/LF for trenching and backfill.
How Plumbers Calculate Pipe Linear Feet
Unlike lumber or fencing that runs in a straight line, pipe routes go around corners, through walls, and underground. Plumbers add waste for:
- Vertical rises: Every sink, toilet, and fixture adds vertical feet to the pipe run.
- Fittings: Each elbow, tee, and coupling adds effective length due to flow resistance. While not literal linear feet, plumbers add an equivalent length for each fitting when sizing pipe.
- Depth changes: Underground lines must go below the frost line, which can change across a property.
- Obstacles: Going around concrete slabs, tree roots, or utility lines adds 10-20% to the direct distance.