Steel & Pipe Calculators for India
Quick engineering calculators for estimating weights, areas and capacities of pipes, plates and bars. Built for Indian buyers and fabricators — metric first, weights in kg and kg per metre, with inch and foot inputs when you need them. Results update as you type.
Pipe Weight Calculator
Weight of a steel pipe from outside diameter, wall thickness and length.
Pipe Outside Surface Area Calculator
Outside surface area of a pipe for painting, coating and insulation estimates.
Pipe Volume & Capacity Calculator
Internal volume and water capacity of a pipe run.
Plate & Sheet Weight Calculator
Weight of a rectangular steel plate or sheet from length, width and thickness.
Round Bar Weight Calculator
Weight of solid round bar from diameter and length.
Flange Weight Calculator
Approximate weight of a flange from outside diameter, bore, thickness and bolt holes.
Flange Bolt Circle Calculator
Bolt hole spacing, chord distance and hole coordinates on a flange bolt circle.
Flange Bolt Torque Calculator
Bolt torque from target bolt load or stress using the K-factor method.
Gasket Area & Seating Load Calculator
Ring gasket contact area and the bolt load needed for a given seating stress.
Steel Pipe Dimensions Chart
NPS, DN, outside diameter and nominal wall thickness in mm for schedules 5s to XXS.
Flange Dimensions Chart
ASME B16.5 Class 150, 300 and 600 — flange OD, PCD, bolt count, hole size and bolt size in mm.
Steel Pipe Data Chart
Quick reference for pipe outside diameters and wall thicknesses in mm — NPS 1/8 to 24, schedules 5s to XXS.
How to use these calculators
Enter the dimensions of the item you are estimating and select the unit next to each field. Weights are calculated from the material density you choose, and you can type in a custom density for any grade not listed. Every result is theoretical — actual delivered weight varies with manufacturing tolerances, so use these figures for estimating and confirm final quantities with our team.
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