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Pounds per cubic foot to Kilograms per cubic meter (lb/ft³ to kg/m³)

Convert pounds per cubic foot to kilograms per cubic meter: 1 lb/ft³ = 16.0185 kg/m³. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.

Formula

1 lb/ft³ = 16.0185 kg/m³

kilograms per cubic meter = pounds per cubic foot × 16.01846337 — reverse: pounds per cubic foot = kilograms per cubic meter × 0.06242796058

The factor is derived from the SI definitions of both units (base unit: kg/m3) as listed in NIST SP 811; results on this page are shown to 6 significant figures, the API returns up to 12.

Worked examples

5 lb/ft³ = 80.0923 kg/m³
12.5 lb/ft³ = 200.231 kg/m³
100 lb/ft³ = 1601.85 kg/m³

Pounds per cubic foot to kilograms per cubic meter conversion table

Pounds per cubic foot (lb/ft³)	Kilograms per cubic meter (kg/m³)
1	16.0185
2	32.0369
3	48.0554
4	64.0739
5	80.0923
6	96.1108
7	112.129
8	128.148
9	144.166
10	160.185
15	240.277
20	320.369
25	400.462
30	480.554
40	640.739
50	800.923
75	1201.38
100	1601.85
200	3203.69
250	4004.62
500	8009.23
1000	16018.5

FAQ

How many kilograms per cubic meter are in one pound per cubic foot?

1 lb/ft³ = 16.0185 kg/m³. The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.

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

Multiply the value in pounds per cubic foot by 16.01846337: kilograms per cubic meter = pounds per cubic foot × 16.01846337. For example, 5 lb/ft³ = 80.0923 kg/m³.

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

Multiply by the inverse factor 0.06242796058 (pounds per cubic foot = kilograms per cubic meter × 0.06242796058), or use the kilograms per cubic meter-to-pounds per cubic foot page.

Related conversions

Machine access

API: GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=lb%2Fft3&to_unit=kg%2Fm3
MCP: server https://tttkmbb.com/mcp, tool convert_units with {"value":5,"from_unit":"lb/ft3","to_unit":"kg/m3"}
Markdown: https://tttkmbb.com/conversion/lb-per-ft3-to-kg-per-m3.md · JSON: https://tttkmbb.com/conversion/lb-per-ft3-to-kg-per-m3.json (add ?value= for a result) · Units: /api/v1/units?quantity=density
OpenAPI operationId: convert_units. Freshness: static. Authentication: none.