The calculator is based on the piping formulas and equations below.
Moment of inertia can be expressed as
I = π (do4 - di4) / 64
≈ 0.0491 (do4 - di4) (1)
I = moment of inertia (in4)
do = outside diameter (in)
di = inside diameter (in)
Section modulus can be expressed as
S = 0.0982 (do4 - di4) / do (2)
S = section modulus (in3)
Section modulus is a geometric property for a given cross-section used in the design of beams or flexural members.
Transverse metal area can be expressed as
Am = π (do2 - di2) / 4 (3)
Am = transverse metal area (in2)
External pipe or tube surface per ft of length can be expressed as
Ao = π do / 12 (4)
Ao = external pipe surface area (ft2 per ft pipe)
Internal pipe or tube surface per ft of length can be expressed as
Ai = π di / 12 (5)
Ai = internal pipe surface area (ft2 per ft pipe)
Transverse internal area can be expressed as
Aa = 0.7854 di2 (6)
Aa = transverse internal area (in2)
External circumference can be expressed as
Ce = π do (7)
Ce = external circumference (in)
Internal circumference can be expressed as
Ci = π di (8)
Ci = internal circumference (in)
|Nominal Pipe Size|
Sizes and dimensions of pipes and tubes, and their fittings - inside and outside diameter, weight and more.
Internal and external diameters, areas, weights, volumes and number of threads for ANSI schedule 40 steel pipes.
Typical cross sections and their Area Moment of Inertia.
Convert between Area Moment of Inertia units.
Convert between units of area.
Standard dimensions and weight of PVC - Polyvinyl Chloride - and CPVC - Chlorinated Polyvinyl Chloride.
The Mass Moment of Inertia vs. mass of object, it's shape and relative point of rotation - the Radius of Gyration.
Calculate cross-sectional areas, weight of empty pipes, weight of pipes filled with water, inside and outside surface areas.
Radius of gyration describes the distribution of cross sectional area in columns around their centroidal axis.
Convert between Elastic Section Modulus units.
Dimensions, wall thickness and weights of stainless steel pipes according to ASME B36.19 Stainless Steel Pipes.
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