What formula is used to calculate brass square bar weight?

The formula is: Weight = Side² × Length × Density. The side and length are converted to meters, side is squared to get the cross-sectional area (m²), multiplied by length to get volume (m³), then multiplied by the brass density (8530 kg/m³) to obtain weight in kilograms.

What density value does this calculator use for brass?

This calculator uses 8530 kg/m³ (8.53 g/cm³), which is the standard engineering density for common yellow brass alloys such as C260 (cartridge brass) and C360 (free-machining brass). Actual values range from 8470 to 8600 kg/m³ depending on alloy composition.

Does this calculator support metric and imperial units?

Yes. Side length can be entered in mm, cm, or inches. Bar length can be entered in meters, mm, feet, or inches. All values are converted to meters internally before calculation.

How does brass square bar weight compare to aluminum or steel?

Brass (8530 kg/m³) is roughly 3.2 times heavier than aluminum (2700 kg/m³) and slightly heavier than carbon steel (7850 kg/m³). For the same bar dimensions, expect a brass bar to be significantly heavier than an equivalent aluminum bar.

Can I calculate the total weight for multiple bars?

Yes. Enter the number of bars in the Quantity field and the calculator will display both the per-bar weight and the total weight for the entire batch.

Which brass alloy does this density apply to?

The 8530 kg/m³ value covers most common yellow brass alloys including C260 (70/30 cartridge brass), C270, C330, and C360 (free-machining brass). Naval brass (C464) is slightly denser at 8530–8580 kg/m³, so the same value applies.

Brass Square Bar Weight Calculator

Enter side length and bar length to instantly calculate brass square bar weight in kg and lbs.

Bar Dimensions

Side Length

Bar Length

Quantity (bars)

Formula Reference

W = S² × L × 8530

Where S = side length (m), L = bar length (m), 8530 = brass density (kg/m³), W = weight (kg).

Enter dimensions on the left and click Calculate.

Brass Alloy Density Reference

Alloy	Common Name	kg/m³	g/cm³
C260	Cartridge Brass (70/30)	8530	8.53
C270	Yellow Brass (65/35)	8470	8.47
C330	Low-Lead Brass	8500	8.50
C360	Free-Machining Brass	8530	8.53
C385	Architectural Bronze	8470	8.47
C464	Naval Brass	8560	8.56

This calculator uses 8530 kg/m³, the standard value for yellow brass alloys.

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Summary

Enter side length and bar length to instantly calculate brass square bar weight in kg and lbs.

How it works

Enter the bar side length in millimeters, centimeters, or inches.
Enter the bar length in meters, millimeters, feet, or inches.
Optionally enter a quantity for multiple bars.
The calculator applies W = Side² × Length × 8530 and displays weight in kg and lbs.
Click Copy to save the result to your clipboard.

Use cases

Estimating brass material weight for machining and fabrication projects.
Calculating freight and shipping weight for square bar stock orders.
Preparing bill of materials (BOM) for brass components.
Verifying load limits on handling and storage equipment.
Cost estimation for brass square bar purchases by weight.
Material planning for plumbing fittings, electrical contacts, and decorative hardware.
Comparing square vs. round bar weight for the same cross-section footprint.
Quick weight checks for CNC turning and milling stock selection.

Frequently Asked Questions

Last updated: 2026-09-19 · Reviewed by Nham Vu