lb to in3 – pounds to cubic inches – mass to volume online

Mass (weight) in pounds (lb):

Density in

Volume in cubic inches (in³, cu in):

0.00in3

Density of some materials:

  • Air ≈ 0.000043 lb/in3
  • Aluminum ≈ 0.0975 lb/in3
  • Concrete ≈ 0.0867 lb/in3
  • Diesel ≈ 0.0307 lb/in3
  • Gasoline (petrol) ≈ 0.02565 lb/in3
  • Steel ≈ 0.2836 lb/in3
  • Water (4°C) ≈ 0.03613 lb/in3

How to convert from lb to in3?

The volume in cubic inches is equal to the mass (weight) in pounds divided by the density in pounds per cubic inch.

Formula:

V = m / p

V – volume in cubic inches (in3, cu in);

m – mass (weight) in pounds (lb);

ρ – density in pounds per cubic inch (lb/in3, lb/(cu in), lb in-3).

 

Example

Convert 100 lb to in3 if the density is 0.03613 lb/in3.

Solution: V = m / p = 100 / 0.03613 = 2767.8 in3. Answer: 100 lb = 2767.8 in3 (density = 0.03613 lb/in3)

In this calculator, density can be entered in the following units (click on density unit):

  • kilogram per cubic meter (kg/m³, kg/(cu m))
  • tons per cubic meter (t/m³, t/(cu m))
  • grams per milliliter (g/mL)
  • grams per cubic centimeter (g/cm³, g/(cu cm), g/cc)
  • pound per cubic inch (lb/in³, lb/(cu in))
  • pound per cubic foot (lb/ft³, lb/(cu ft), lb/(cf))
  • pound per US liquid gallon (lb/US gal)
  • ounce per cubic inch (oz/in³, oz/(cu in))
  • ounce per cubic foot (oz/ft³, oz/(cu ft))
  • slug per cubic foot (slug/ft³, slug/(cu ft), slug/cf)