Pounds per cubic foot to Kilograms per cubic metre Converter lb/ft³ → kg/m³

1 pound per cubic foot (lb/ft³) = 16.01846337 kilograms per cubic metre (kg/m³). Type a value below — the conversion happens instantly, entirely on your device.

From

1 lb/ft³ = 16.01846337 kg/m³

Precision

62.4 pounds per cubic foot = 999.55211 kilograms per cubic metre

62.4 × 16.0185 = 999.55211

1 lb/ft³ equals 16.0185 kg/m³, so multiplying by 16.0185 converts the value. The result describes the exact same quantity — only the measuring stick changes.

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

kilograms per cubic metre = pounds per cubic foot × 16.01846337 — multiply the pound per cubic foot value by 16.0185.

Example: 62.4 lb/ft³ = 999.552 kg/m³.

To convert the other way: pounds per cubic foot = kilograms per cubic metre ÷ 16.01846337 — or use the dedicated kg/m³ to lb/ft³ converter .

Pounds per cubic foot to kilograms per cubic metre multiplies by about 16.018: 62.4 lb/ft³ (water) is 1,000 kg/m³. Use it to bring US material densities into SI.

Pounds per cubic foot to Kilograms per cubic metre conversion table

Pounds per cubic foot (lb/ft³)	Kilograms per cubic metre (kg/m³)
0.1	1.6018463
0.25	4.0046158
0.5	8.0092317
1	16.018463
2	32.036927
3	48.05539
4	64.073853
5	80.092317
6	96.11078
7	112.12924
8	128.14771
9	144.16617
10	160.18463
15	240.27695
20	320.36927
25	400.46158
30	480.5539
40	640.73853
50	800.92317
75	1201.3848
100	1601.8463
250	4004.6158
500	8009.2317
1000	16,018.463

About the units

What is a pound per cubic foot?

The US density unit, about 16.018 kg/m³. Water is about 62.4 lb/ft³; building materials and soils are often specified this way.

What is a kilogram per cubic metre?

The SI unit of density — mass in kilograms per cubic metre. Water is 1,000 kg/m³; air at sea level about 1.225 kg/m³.

Frequently asked questions

How many kilograms per cubic metre are in 1 pound per cubic foot?

1 pound per cubic foot (lb/ft³) = 16.01846337 kilograms per cubic metre (kg/m³).

What is the formula to convert pounds per cubic foot to kilograms per cubic metre?

kilograms per cubic metre = pounds per cubic foot × 16.01846337 — multiply the pound per cubic foot value by 16.0185.

How do I convert lb/ft³ to kg/m³ without a calculator?

Multiply by 16 for a close estimate. Exact factor: 1 lb/ft³ = 16.01846337 kg/m³.

Is this lb/ft³-to-kg/m³ converter accurate and private?

Yes. It uses the exact internationally defined conversion factors and computes results locally in your browser — your input is never sent to a server, and the page keeps working offline.