Question 1

How do I convert kg/m³ to lb/ft³?

Accepted Answer

Multiply by 0.0624. 1000 kg/m³ = 62.4 lb/ft³.

Question 2

What is the density of common materials in lb/ft³?

Accepted Answer

Water: 62.4. Steel: 490. Aluminum: 169. Oak wood: 45.

Question 3

What's the relationship between density and specific gravity?

Accepted Answer

Specific gravity is density relative to water (1 g/cm³). So a material with SG of 2.5 is 2.5 times denser than water, or 2500 kg/m³.

Question 4

Why does temperature affect density?

Accepted Answer

Most materials expand when heated, decreasing density. Water is unusual - it's densest at 4°C. This is why ice floats.

kg/m³ to lb/ft³ Converter

Frequently Asked Questions