Pipe Volume Calculator

Inputs

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Actual inside diameter, not nominal pipe size.
mm
Length of one identical pipe run.
m
Number of identical pipe runs included in the total capacity.
runs
Bulk fill percentage of the contained volume. Use 100% for a full closed line.
%
Flow used to estimate fill or drain time. Set to zero if time is not needed.
L/min
Fluid density used to convert contained volume into mass. Water is about 998 kg/m^3 near room temperature.
kg/m³

Results

Default result
Edit inputs
Contained liquid(V_f)
14.73L
Pass

100% of total capacity.

Also computed

Total pipe capacity(V_total)14.73L

1 identical run.

Capacity per run(V_run)14.73L

Fluid mass(m)14.7kg

Density 998.0 kg/m^3.

Fill / drain time(t)Pass0.2945min

At 50.00 L/min.

Pipe flow area(A)490.9mm²

Method notes 3 notes
  • Pipe capacity uses V = (pi*D^2/4)*L. Use actual inside diameter, not nominal pipe size.
  • Fill fraction is a simple bulk fraction of contained line volume. It is not open-channel partial-depth geometry.
  • Final field work still needs trapped air, pitch, low points, fittings, valves, equipment volume, flushing allowance, fluid expansion and measured installed lengths.

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