Steel Calculators

A free collection of steel engineering calculators for weight, beam load, span, cost, and thermal expansion. Pick the tool you need below — each gives instant results with the formulas and reference data behind them.

How it works & formula

These tools cover the everyday calculations for fabricators, builders, and designers: converting section dimensions to weight, checking how much load a beam carries, how far it can span, what it costs, and how much steel moves with temperature. Each calculator page shows the underlying formula and typical reference values so you can check the result.

Reference data

Available calculators:

Frequently asked questions

Are these steel calculators free?

Yes, every calculator on this page is free to use in your browser with no sign-up required.

What steel density do the weight calculators use?

They use the standard structural steel density of 7,850 kg per cubic metre (0.284 lb per cubic inch) unless a specific grade is selected.

Can I use these tools for structural design?

They are excellent for quick estimates and checks, but final structural design should be verified against current code tables and a qualified engineer.