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PIPING / Pipe Weight Calculator

Pipe Weight Calculator

Calculate theoretical pipe mass from actual outside diameter, wall thickness, length and material density.

Inputs

Updates as you type

kg/m³

Results

Total weight

22.195kg
Results
Total weight0.022 ton
Total weight48.932 lb
Weight per meter22.195 kg/m
Inside diameter80 mm
Metal cross-sectional area2,827.433 mm²

Overview

Calculate theoretical pipe mass from actual outside diameter, wall thickness, length and material density.

Formula 

ID = OD − 2t
Ametal = π(OD² − ID²)/4
Mass per meter = Ametal × ρ
Mass = Ametal × L × ρ
Dimensions: m · Density: kg/m³ · Mass: kg

Example

OD 100 mm, wall 10 mm, length 1 m and density 7,850 kg/m³ give an inside diameter of 80 mm, a metal area of 2,827.433 mm² and a mass of approximately 22.195 kg.

How to use

  1. Check the units, enter the required values and select the available calculation options.
  2. Results update immediately. Correct any highlighted input before using the result.
  3. Choose display precision, copy the result or share the current inputs. Reset restores the example values.

Engineering notes

  • Use actual outside diameter, not the DN or NPS designation. Verify wall thickness against the applicable dimensional standard and schedule.
  • Presets are nominal densities. Manufacturing tolerance, coating, lining, corrosion, fluid and fittings are excluded. Use the specified density for your material and temperature.

Frequently asked questions FAQ

Does total weight include fluid and flanges?

No. This is the theoretical mass of a uniform straight pipe wall. Add internal volume × fluid density, flanges, valves and insulation separately.

Does display precision change the calculation?

No. Rounding is applied only to displayed results, not intermediate calculations. Small nonzero values use scientific notation. Consider the precision of the original measurements when interpreting results.

KEEP WORKING

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