What density does this calculator use for lead?

Pure lead has a density of 11,340 kg/m³ (11.34 g/cm³). This is the internationally accepted value for commercially pure lead at room temperature.

Does this work for lead alloys?

This tool uses pure lead density. Common alloys like lead-antimony or lead-tin have slightly different densities (typically 10,800–11,200 kg/m³), so results may vary by a few percent for alloys.

How do I convert the result to other units?

The tool shows both kg and lbs. To convert to tonnes divide kg by 1,000. To convert to US short tons divide lbs by 2,000.

Why is lead so much heavier than steel?

Lead's density (~11,340 kg/m³) is about 44% higher than structural steel (~7,850 kg/m³), making it exceptionally heavy relative to its size — which is why it is used for ballast and radiation shielding.

Can I use this for lead shot or pellets?

No. This calculator assumes a solid rectangular beam. Lead shot has air gaps between pellets, so the bulk density is roughly 60–70% of solid lead. Use it only for solid rectangular shapes.

Lead Beam Weight Calculator

Name: Lead Beam Weight Calculator
Availability: InStock
Author: Nham Vu

Calculate the weight of a lead beam from its length, width, and height using lead's density of 11,340 kg/m³.

Beam Dimensions

Unit of measurement

Length

Width

Height

Weight Result

Enter dimensions and click Calculate

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Summary

Calculate the weight of a lead beam from its length, width, and height using lead's density of 11,340 kg/m³.

How it works

Enter the beam's length, width, and height.
Select the unit of measurement: mm, cm, m, or inches.
The calculator computes the volume (length × width × height).
The volume is multiplied by lead's density of 11,340 kg/m³.
Results are shown immediately in both kg and lbs.

Use cases

Estimating weight of lead shielding blocks for X-ray or radiation rooms.
Calculating ballast weight for keels, dive weights, or counterweights.
Planning structural load for lead-lined walls or doors.
Verifying weight of custom lead castings before manufacture.
Budgeting material cost when buying lead by weight.
Engineering checks for lead battery components or electrodes.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu