Tools & calculators.
Free engineering calculators and reference charts for pipe, plate, bar, flanges and bolting.
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Teshi PipeData — every pipe, flange and fitting dimension
Find any item step by step — product, type, standard, rating, size — and get its drawing, dimensions, weight and purchase description. Over 7,500 items to ASME, EN, IS, BS, JIS and AWWA, in mm and inches. Free, works offline on your phone.
Open PipeDataPipe weight
Weight per metre and total weight from outside diameter and wall thickness.
Open calculator PipePipe surface area
Outside surface area for painting, coating and insulation estimates.
Open calculator PipePipe volume & capacity
Internal volume and water capacity of a pipe run.
Open calculator SteelPlate & sheet weight
Weight of a rectangular plate or sheet.
Open calculator SteelRound bar weight
Weight of solid round bar from diameter and length.
Open calculator FlangeFlange weight
Approximate weight of a plate or slip-on flange from its dimensions.
Open calculator FlangeFlange bolt circle
Hole spacing, chord distance and hole coordinates on a pitch circle.
Open calculator FlangeFlange bolt torque
Tightening torque from bolt load or target stress (K-factor method).
Open calculator FlangeGasket area & seating load
Ring gasket contact area and the bolt load needed to seat it.
Open calculator ChartsDimensional standards
Flange, fitting, pipe, gasket and stud bolt dimension charts with PDF downloads.
View charts Ask an engineerNeed a different calculation?
Send us your drawing or data — our engineers will work out weights, dimensions or bolting for your exact part.
Contact usResults are estimates for planning. Confirm critical dimensions and weights against the governing standard and the mill certificate.
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