Spike's Calculators

Pipe Bend Radius Calculated from an Angle

Curved Pipe

Calculate a pipe's bend radius using the curve's internal angle and the bend's length. This calculator uses inches for measurements.

Bend Radius

Internal Angle in
Length of Curve in
Decimal Precision #


Bend Radius in


  1. enter the angle of the curve in degrees
  2. the length of the curve in inches
  3. decimal precision, number of digits after the decimal point


  1. the bend radius in inches

r = 0.5L/sin(a/2)
where r is the bend radius
L the bend length
the internal angle of the curve
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