kg/m³ to lb/ft³ Density Converter

kg/m³ to lb/ft³ conversion chart

Calculated with the formula above; filter or export as CSV.

Filter chart

kg/m³ to lb/ft³ conversion chart
kg/m³	lb/ft³	Typical material
1.2	0.07491355	Air
10	0.62427961	—
16	0.99884737	—
25	1.56069901	EPS foam
50	3.12139803	—
100	6.24279606	—
150	9.36419409	—
200	12.48559212	—
250	15.60699014	—
300	18.72838817	—
400	24.97118423	—
500	31.21398029	—
600	37.45677635	Pine
700	43.6995724	—
800	49.94236846	—
900	56.18516452	—
1000	62.42796058	Water (4 °C)
1025	63.98865959	Seawater
1200	74.91355269	—
1500	93.64194086	—
2000	124.85592115	—
2400	149.82710538	Concrete
2700	168.55549356	Aluminium
4500	280.92582259	Titanium
7850	490.05949052	Carbon steel
8000	499.42368461	Stainless 304
8900	555.60884913	Copper

Formula and method

lb/ft³ = kg/m³ × 0.062427961 kg/m³ = lb/ft³ × 16.018463374 Multiply by the source unit’s SI factor to get kg/m³, then divide by the target unit’s SI factor.

Worked example

1,000 kg/m³ × 0.062427961 = 62.428 lb/ft³.

Assumptions and limits

Chart rows are typical room-temperature densities (air, foam, wood, water, seawater, concrete, aluminium, titanium, carbon steel, stainless, copper) for orientation only.
Results show up to 4 decimals; Copy and CSV keep more digits.

Frequently asked questions

How many lb/ft³ are in 1 kg/m³?

1 kg/m³ = 0.062427961 lb/ft³. The factor follows from the SI definitions: 1 lb = 0.45359237 kg and 1 ft³ = 0.028316846592 m³.

How do I convert lb/ft³ back to kg/m³?

Multiply by 16.018463374 (or divide by 0.062427961), or simply switch “From unit” to lb/ft³. For example 10 lb/ft³ = 160.1846 kg/m³.

What is pcf in freight and how is it used?

pcf is lb/ft³. US LTL carriers set the NMFC freight class from a density scale: for example 15 pcf (about 240 kg/m³) is class 70. Convert your kg/m³ to pcf here, or use the freight class calculator to get the class directly from dimensions and weight.

References

kg/m³ to lb/ft³ Density Converter practical guide and common questions

What does kg/m³ to lb/ft³ Density Converter calculate?

Convert density from kg/m³ to lb/ft³ (pcf), g/cm³ and lb/in³ — for freight density as well as material density. Conversion runs in your browser; factors are from NIST SP 811. lb/ft³ = kg/m³ × 0.062427961 kg/m³ = lb/ft³ × 16.018463374 Multiply by the source unit’s SI factor to get kg/m³, then divide by the target unit’s SI factor.

When is this useful?

1,000 kg/m³ × 0.062427961 = 62.428 lb/ft³.

How do I enter the inputs?

Enter the inputs for kg/m³ to lb/ft³ Density Converter: Value, From unit. Calculate, check the units and assumptions, then copy or download the results.

How should I interpret the results?

Chart rows are typical room-temperature densities (air, foam, wood, water, seawater, concrete, aluminium, titanium, carbon steel, stainless, copper) for orientation only. Results show up to 4 decimals; Copy and CSV keep more digits.

Where are my inputs processed?

kg/m³ to lb/ft³ Density Converter runs in this browser. Inputs are not uploaded to a calculation server; copying and CSV download require your action. The existing site analytics and advertising still load.