Spike's Calculators

Calculate the bend radius and the angle from the length of the curve and the height. This calculator uses inches for measurements. You do not always know the angle or the bend radius to calculate the volume of a curved section of pipe, but the two measurements needed for this calculation are easy to get.

- enter the curve length in inches
- the height of the curve in inches
- decimal precision, the number of digits after the decimal point

- the bend radius in inches
- the internal angle in radians
- in decimal degrees
- in degrees, minutes, and seconds

r = (d²/h+h)/2 a = sin^{-1}(d/r) where r is the bend radius the angle in radians d half the length of the curve h the height of the curve r the bend radius

- Bend Radius and Angle
- Curved Pipe Volume
- Internal Angle from the Bend Radius
- Pipe Bend Radius Calculated from an Angle
- Pipe Volume from Curve Length and Height
- Pipe Volume

- Pipe Inner and Outer Surface Area - Inches
- Pipe Inner and Outer Surface Area - Millimetres
- Pipe Surface Area - from a Circumference in Inches
- Pipe Surface Area - from a Circumference in Metres
- Pipe Surface Area - from a Circumference in Millimetres
- Pipe Surface Area from Diameter - Decimal Inch
- Pipe Surface Area - From Diameter in Inches + Fraction