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Steel Weight Calculator

Steel weight is calculated by multiplying volume by density, with standard steel density at 7850 kg/m³. This calculator estimates the weight of any steel section from its dimensions.

What Is Steel Weight?

Steel weight is the mass of a steel element, calculated by multiplying its volume by the standard steel density of 7850 kg/m³. It applies to plates, bars, beams, channels, and custom sections. Accurate steel weights are essential for structural design, shipping, and cost estimation.

Formula: Volume x 7850

Example

Formula: Volume x 7850 kg/m³
= (6 m x 0.2 m x 0.01 m) x 7850 kg/m³
= 94.20 kg

Use any units for size, then the result will be in kg.

Tip: Choose your result unit on the right before calculating.

Step-by-step calculation

  1. Enter length, width, and thickness with units.
  2. Calculate to see steel weight in kg.

How this is calculated

Weight = cross-sectional area times length times density (7850 kg/m³ for steel), or about d²/162 kg/m times length for round metric bars. Results are estimates for planning.

Sources: IS 1786 (Steel for Reinforcement of Concrete); SP 16 (Design Aids for RC).

FAQ

How do I calculate steel weight by hand?
Multiply length x width x thickness x 7850. Example: 6 x 0.2 x 0.01 x 7850 = 94.2 kg.
What is the formula for steel weight?
Weight = Volume x 7850 kg/m³. Use 7850 for standard carbon steel.
Steel plate vs steel bar weight
Both use volume x density. Bars are long; plates are flat. The formula is the same.
What units should I use?
Use meters for dimensions to get m³, then kg for weight.
Can I use this for stainless steel?
Stainless steel density is about 8000 kg/m³. Adjust the density for accurate results.

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