Mr Calcu | Steel Weight Calculator for All Shapes and Sizes

Accurately calculate the weight of steel bars, sheets, pipes, and plates for any dimensions.

Steel Weight Calculator

Steel Weight Calculator Guidelines

  • Select the shape of the steel item.
  • Input accurate dimensions using metric units.
  • Use the default steel density or modify it for alloys.
  • Press Calculate to get the result in kg and lbs.
  • Use the result for transportation, costing, and fabrication planning.

Steel Weight Calculator Description

What is a Steel Weight Calculator?

A Steel Weight Calculator is a critical engineering tool used to compute the weight of steel based on its type, shape, and dimensions. This calculator aids in project planning, cost estimation, transportation logistics, and construction design. The density of steel is assumed to be 7850 kg/m3, which is used across all standard calculations unless otherwise specified.

Supported Shapes:

  • Round Bars
  • Rectangular Plates
  • Square Bars
  • Steel Pipes (Hollow)
  • Flat Bars

Knowing the accurate weight helps buyers and engineers optimize structural integrity and manage budget constraints. This calculator removes manual guesswork and provides instant, reliable results.

Formulae and Standards

Different shapes require different formulae. Here's a quick reference:
Round Bar: π × r2 × length × density
Square Bar: side × side × length × density
Rectangular Plate: length × width × thickness × density
Pipe: π × (OuterRadius2 - InnerRadius2) × length × density
Flat Bar: width × thickness × length × density

This calculator takes all necessary parameters and computes weights in kilograms and pounds, and provides insights for procurement and structural analysis.

Use Cases

Whether you are estimating weight for shipping, preparing a quotation for steel fabrication, or analyzing structural load, this calculator brings real-time precision. Industries that rely on this include:

  • Construction & Civil Engineering
  • Steel Manufacturing
  • Shipbuilding
  • Mechanical Engineering
Use it regularly to avoid over- or under-estimation, which can severely impact project timelines and cost efficiency.

Example Calculation

ShapeDimensionsWeight (kg)
Round BarDia: 20mm, L: 6m14.8 kg
Rectangular Plate1000x500x10 mm39.25 kg
Steel PipeOD: 100mm, ID: 90mm, L: 3m17.5 kg

Frequently Asked Questions

The calculator uses 7850 kg/m³ as the standard steel density, which is commonly used across industries.

This calculator currently supports metric units only. For imperial, you can convert to mm/cm before input.

You can manually update the density field to match the specific gravity of your alloy steel for precision.

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