Round bar weight calculator
Estimate kg/m, weight per bar, total kilograms, and metric tonnes from diameter, length, quantity, and an editable density.
Open calculator →Steel tools and public data
Useful before the quotation starts.
Calculate a theoretical bar weight, download the same data in a machine-readable format, or turn the result into a clearer RFQ. No account is required.
Available now
Three routes, one set of assumptions.
Round bar theoretical weight table
Browse common diameters or download the full 1–400 mm table as CSV or JSON. Every row uses the published formula and density basis.
View weight data →Alloy steel RFQ route dataset
Compare six public JOTAIN grade routes without treating cross-standard designations as automatic substitutes.
View RFQ data →When the estimate is ready
Put the commercial details around it.
Weight is only one line in a steel bar inquiry. A workable quotation still needs the grade and controlling standard, diameter and tolerance, length, quantity, condition, inspection documents, packing, and destination.