Steel Billet Weight Calculator
Enter the shape, size and length to get the theoretical weight per metre and total weight, using a steel density of 7.85 g/cm³.
Formulae used
- Square: side² × 0.00785 = kg per metre
- Round: diameter² × 0.006165 = kg per metre
Dimensions in mm. Real billets have rounded corners and tolerance, so actual weights are a little lower than theory. Kesari Alloys' indicative weights are on the billet size chart, within ±3%. Read the full guide with worked examples.
Weight questions
How do I calculate the weight of a steel billet?
For a square section, weight in kg per metre is side in mm squared × 0.00785. For a round section it is diameter squared × 0.006165. Use the billet weight calculator for any length. Actual weight varies with corner radius and tolerance.
What billet and bloom sizes does Kesari Alloys supply?
100 × 100, 125 × 125 and 160 × 160 mm billets, 200 × 200 and 250 × 250 mm blooms, and 200 mm diameter round blooms, in lengths up to 12 metres. Weights per metre are on the billet size chart.