Spike's Calculators

Curved Pipe Volume

Curved Pipe

Calculate the volume and capacity inside a curved section of pipe using the curve's length and angle. This calculator uses inches for measurements.

Curved Pipe Volume

Curve Length in
Angle in
Pipe Diameter in
Wall Thickness in


In Cubic Inches in³
In Cubic Feet ft³
In Cubic Metre
Pipe Capacity:
In US Gallons gal US
In Imperial Gallons gal Imperial
In Litres L


  1. enter the length of the curve in inches
  2. the angle in degrees
  3. the outside diameter of the pipe
  4. the thickness of the wall


  1. the volume of the curved section in cubic inches
  2. the volume in cubic feet
  3. the volume in cubic metres
  4. the capacity of the curved section in US gallons
  5. the capacity in Imperial gallons
  6. the capacity in litres
V = 2.4674((d-t+r)²-(r+d)²)(d-2t)(a/360)
where V is the volume of the curve section
2.4674 a constant
d the pipe diameter
t the thickness of the pipe wall
r the radius of the curve
the interior angle of the curve
one cubic inch (in³) = 0.000578703703703704 cubic feet (ft³)
one cubic inch (in³)	= 0.000016387064 cubic metres (m³)
one cubic inch (in³) = 0.00432900432900432 gallons (gal) US
one cubic inch (in³) = 0.00360465014990905 gallons (gal) Imperial
one cubic inch (in³) = 0.016387064 litres (L)
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