What is the conversion factor from g/cm³ to lb/ft³?

62.428 lb/ft³ per g/cm³. This comes from 1 pound = 453.592 grams and 1 foot = 30.48 cm, so 1 cubic foot = 28,316.8 cm³. Dividing: 453.592 g/lb ÷ 28316.8 cm³/ft³ = 0.016018 g/(cm³·lb·ft³), inverted to 62.428.

How do I convert g/cm³ to lb/ft³ by hand?

Multiply the g/cm³ value by 62.428. For example, water at 1 g/cm³ × 62.428 = 62.428 lb/ft³. Carbon steel at 7.85 g/cm³ × 62.428 ≈ 490.1 lb/ft³.

How do I convert lb/ft³ to g/cm³ by hand?

Divide the lb/ft³ value by 62.428. For example, 62.428 lb/ft³ ÷ 62.428 = 1.000 g/cm³ (water). Or equivalently, multiply by 0.016018.

Is g/cm³ the same as g/mL?

Yes. One milliliter equals exactly one cubic centimeter (1 mL = 1 cm³), so g/cm³ and g/mL are numerically identical and interchangeable in chemistry and medicine.

What is the density of water in lb/ft³?

Water at 4 °C has a density of 1.000 g/cm³, which equals approximately 62.43 lb/ft³. This is the standard reference point for density comparisons.

Where is lb/ft³ used?

Pounds per cubic foot is standard in US construction, HVAC (duct liner density), structural engineering, timber grading, and building material specifications. It is rarely used outside the United States.

g/cm3 to lb/ft3 Converter

Name: g/cm3 to lb/ft3 Converter
Availability: InStock
Author: Nham Vu

Convert density from g/cm³ to lb/ft³ instantly — or reverse — with a reference table of common material densities.

Density Converter

Grams per cubic centimeter (g/cm³)

g/cm³

Pounds per cubic foot (lb/ft³)

lb/ft³

Formula: lb/ft³ = g/cm³ × 62.428 | g/cm³ = lb/ft³ ÷ 62.428

Common Material Densities

Click a row to load its value into the converter.

Material	g/cm³	lb/ft³

Summary

Convert density from g/cm³ to lb/ft³ instantly — or reverse — with a reference table of common material densities.

How it works

Enter a density value in the g/cm³ field to convert to lb/ft³.
Or enter a value in the lb/ft³ field to convert back to g/cm³.
The result updates instantly as you type.
The formula is: lb/ft³ = g/cm³ × 62.428.
Use the reference table to look up densities of common materials.
Click any table row to load that material's value into the converter.

Use cases

Convert material density data from metric (CGS) to US customary units for engineering specs.
Determine whether a material will float on water (density < 1 g/cm³ = 62.428 lb/ft³).
Translate lab-reported g/cm³ values into lb/ft³ for structural or civil engineering calculations.
Verify unit consistency before applying density in buoyancy or fluid-dynamics formulas.
Look up densities of metals, wood, concrete, and other construction materials in lb/ft³.
Cross-check supplier data sheets that mix metric and imperial density units.

Frequently Asked Questions

Last updated: 2026-07-23 · Reviewed by Nham Vu