Convert Pounds per Cubic Foot to Kilograms per Cubic Meter

What are pounds per cubic foot and kilograms per cubic meter?

Pounds per cubic foot is the imperial density unit used in US construction; water is about 62.4 lb/ft³. Kilograms per cubic meter is the SI unit of density; water is about 1,000 kg/m³. For reference: water is 1,000 kg/m³ (1 g/cm³), and steel is about 7,850 kg/m³.

How to convert pounds per cubic foot to kilograms per cubic meter

1 lb/ft³ = 16.0185 kg/m³. To convert, multiply the number of pounds per cubic foot by 16.0185. For example, 5 lb/ft³ = 80.0923 kg/m³, and 20 lb/ft³ = 320.369 kg/m³. To go the other way, multiply kilograms per cubic meter by 0.062428 (since 1 kg/m³ = 0.062428 lb/ft³).

Pounds per Cubic Foot to Kilograms per Cubic Meter conversion table

FAQ

What is 1 lb/ft³ in kg/m³?

1 lb/ft³ = 16.0185 kg/m³. To convert any amount, multiply the number of pounds per cubic foot by 16.0185.

How do I convert kilograms per cubic meter back to pounds per cubic foot?

Go the other way: 1 kg/m³ = 0.062428 lb/ft³, so multiply kilograms per cubic meter by 0.062428 to get pounds per cubic foot.

Is a pounds per cubic foot bigger than a kilograms per cubic meter?

Yes — 1 lb/ft³ is the larger unit, equal to 16.0185 kg/m³.

Are these density conversions exact?

They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.