PEX Tubing Length Calculator
Estimate PEX tubing for home-run or measured branch layouts using cold and hot outlet counts, average run length, recirculation length, waste and coil size.
Default project preview
5 coils
Fixture-run tubing
966 ft
Hot-water runs
9
Cold-water runs
14
Purchased tubing
1,500 ft
Calculator
Build the material order
Your order will appear here
Enter the project details and calculate a rounded material estimate.
Methodology
Transparent calculation
BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.
Fixture tubing = (cold runs + hot runs) × average run length. Add recirculation and mains, apply allowance, then round to full coils.
BuildMeter Guides
Understand the measurements and assumptions
Use these visible reference guides before changing project inputs or planning allowances.
FAQ
PEX Tubing Length Calculator questions
Can hot and cold tubing be combined in one order?+
Only when the same size and product are used. Separate colors, diameters or barrier types should be calculated separately.
Should fitting takeoffs be included?+
This calculator covers tubing length only. Manifolds, fittings, supports, sleeves and valves need a separate schedule.
Is average run length accurate enough?+
It is useful early in planning. A route-by-route takeoff from drawings or field measurements is more accurate before purchasing.