Pounds Per Cubic Foot to Kilograms Per Cubic Meter Converter

Conversion Updated 15 Jun 2026

This Pounds Per Cubic Foot to Kilograms Per Cubic Meter Converter lets you convert Pounds per cubic foot (lb/ft3) into Kilograms per cubic meter (kg/m3) in one step. Enter a value in pounds per cubic foot and you'll instantly see the equivalent in kilograms per cubic meter, worked out with the formula kg/m3 = lb/ft3 x 16.018463367839058. It's handy whenever you need a quick, precise pounds per cubic foot-to-kilograms per cubic meter conversion without doing the arithmetic by hand.

  • Conversion constants are fixed and do not vary by region.

Formula

kg/m3 = lb/ft3 x 16.018463367839058
  • To convert pounds per cubic foot to kilograms per cubic meter, multiply your value by the fixed factor 16.018463367839 (so 1 lb/ft3 = 16.018463367839 kg/m3).
  • The factor comes from the internationally agreed definitions of each unit, so it never changes.
  • Displayed results are rounded for readability, but the full-precision value is used in the calculation.

Example

Inputs
  • Pounds per cubic foot (lb/ft3): 1000

Start with 1,000 lb/ft3. Multiply by 16.018463367839 to get 16,018.463367839058 kg/m3.

Frequently asked questions

How do I convert pounds per cubic foot to kilograms per cubic meter?
Multiply the number of pounds per cubic foot by 16.018463367839. For example, 1,000 lb/ft3 equals 16,018.463367839058 kg/m3.
Are these conversion factors accurate?
Yes. The calculator uses internationally accepted definitions for each unit, so the conversion factor is exact.
Why can tiny differences appear after conversion?
Very small differences are only a display effect from rounding the output. The underlying calculation keeps full precision.