Pipe Weight Calculator
This pipe weight calculator finds the weight of a pipe from its outside diameter, wall thickness, length, and material. Enter the numbers and the pipe weight calculator returns the total weight and the weight per meter, so you can price, ship, and support the pipe correctly. As a weight calculator pipe buyers trust, it turns a size into a figure you can order against. It handles steel, aluminum, copper, and stainless, and works as an ms pipe weight calculator for mild steel by default.
Results
The Pipe Weight Calculator is part of our Weight collection. Browse more weight to size, convert, and check your work alongside this tool.
What the pipe weight calculator does
A pipe is a hollow cylinder, so its weight depends on the metal in the wall, not the space inside. This pipe weight calculator works out that wall volume from the outside diameter and wall thickness, multiplies by the length and the material density, and returns the weight. As a steel pipe weight calculator it defaults to mild steel, and it doubles as an ms pipe weight calculator or an ss pipe weight calculator when you switch the material.
The pipe weight calculation formula (weight calculator pipe)
The pipe weight calculation formula finds the metal in the ring-shaped wall, then multiplies by length and density:
where R is the outer radius, r is the inner radius (outer minus wall thickness), and density is the metal density. The pipe weight calculator does this so the weight of a pipe comes out correctly whether it is a thin-wall tube or a heavy section. Mild steel is about 7.85 g/cm³, which is why an ms pipe weight calculator uses that figure by default.
Ms pipe weight calculator example
A mild steel pipe, 100 mm outside diameter, 5 mm wall, 1 meter long. The pipe weight calculation formula gives:
So the pipe weighs about 11.7 kg per meter. Enter these values and the steel pipe weight calculator returns the same, and the weight per meter for any run.
How to use the pipe weight calculator
Enter the outside diameter, the wall thickness, and the length of the pipe, then choose the material. The pipe weight calculator finds the cross-sectional area of the wall, multiplies by length and density, and returns the total weight plus the weight per meter. To find the weight of a pipe run, enter the full length; the pipe weight calculation formula scales directly with it.
Reading the pipe weight calculator result
The total weight is what you lift, ship, and support; the weight per meter is what you use to scale a run or compare sizes. For structural work, the weight per meter tells you the load a bracket or hanger must carry. Remember the result is the bare pipe: fittings, flanges, coatings, and the fluid inside add more. The pipe weight calculator gives the metal weight, which is the figure suppliers quote and the weight of a pipe calculator basis for pricing.
When to use the pipe weight calculator
- Pricing steel with the steel pipe weight calculator by weight
- Sizing supports from the pipe weight per meter
- Estimating mild steel runs with the ms pipe weight calculator
- Comparing stainless options with the ss pipe weight calculator
- Sizing hollow sections with a square tube weight calculator
Common pipe weight calculator mistakes
- Treating the pipe as solid. The pipe weight calculation uses the wall ring, not the full circle.
- Wrong wall thickness. It is squared in the formula, so a small error shifts the weight of a pipe noticeably.
- Forgetting extras. The pipe weight calculator gives bare metal; add fittings, coating, and fluid for the real load.
Tips for accurate results
- Measure the outside diameter and wall thickness carefully before using the pipe weight calculator.
- Pick the correct material so the density matches, ms versus ss.
- Use the weight per meter to scale runs and size supports.
Why the weight of a pipe calculator uses the wall, not the bore
The mistake that throws off a pipe weight calculation is treating the pipe as a solid cylinder. A pipe is hollow, so only the metal in the wall has weight, and the wall is a ring whose area is the outer circle minus the inner one. That is where the π × (R² − r²) in the pipe weight calculation formula comes from. Because the radius is squared, a small change in outside diameter or wall thickness makes a large change in weight, so measure both carefully. Getting the wall thickness wrong by a millimeter can shift the weight of a pipe by several percent, which matters when the ms pipe weight calculator result drives a shipping cost or a support design.
Material and length in the steel pipe weight calculator
Two more inputs finish the picture. Material sets the density: mild steel and stainless are close, around 7.85 and 8.0 g/cm³, while aluminum is roughly a third the weight and copper is heavier, so switching material in the steel pipe weight calculator changes the answer sharply. Length scales the weight directly, which is why the weight per meter is so useful: work it out once and multiply by any run. For a real installation, add the weight of fittings, valves, insulation, and the fluid the pipe will carry, since the pipe weight calculator gives the bare metal figure that everything else builds on.
Steel pipe weight calculator chart
Approximate weight per meter of mild steel pipe from the pipe weight calculator, by outside diameter and wall thickness:
| OD | Wall 3 mm | Wall 5 mm | Wall 8 mm |
|---|---|---|---|
| 48 mm | 3.33 kg/m | 5.30 kg/m | 7.89 kg/m |
| 60 mm | 4.22 kg/m | 6.78 kg/m | 10.26 kg/m |
| 100 mm | 7.18 kg/m | 11.71 kg/m | 18.15 kg/m |
Pipe Weight Calculator FAQ
How do I calculate the weight of a pipe?
Find the metal in the wall with π × (R² − r²), multiply by length and density. The pipe weight calculator applies this pipe weight calculation formula and returns total weight and weight per meter.
What density should I use?
Mild steel is about 7.85 g/cm³, stainless about 8.0, aluminum 2.70, and copper 8.96. The pipe weight calculator uses the right value when you pick the material, so an ms pipe weight calculator and an ss pipe weight calculator differ only by density.
Does it work for square tube?
This tool is for round pipe. A square tube weight calculator, sq tube weight calculator, or square pipe weight calculator uses the same idea with a square cross-section instead of a ring; the density and length steps are identical, and a rect tube weight calculator handles rectangular sections the same way.
What is pipe weight per meter?
It is the weight of a one-meter length, handy for scaling runs and sizing supports. The pipe weight calculator reports it next to the total weight of a pipe.