Pound/Cubic Foot to Slug/Cubic Foot Converter

Density Converter

16 units available

Decimals:

From

To

0.031081

1 lb/ft³ = 0.031081 slug/ft³

Formula:

slug/ft³ = lb/ft³ × 0.0310809502

With your value: 1 lb/ft³ = 0.03108095 slug/ft³

Other Pound/Cubic Foot to Slug/Cubic Foot conversions

2 lb/ft³ to slug/ft³ 3 lb/ft³ to slug/ft³ 4 lb/ft³ to slug/ft³ 5 lb/ft³ to slug/ft³ 6 lb/ft³ to slug/ft³ 7 lb/ft³ to slug/ft³ 8 lb/ft³ to slug/ft³

Pound/Cubic Foot to Slug/Cubic Foot Conversion Table

Pound/Cubic Foot (lb/ft³)	Slug/Cubic Foot (slug/ft³)
0.5	0.01554
1	0.031081
2	0.062162
5	0.155405
10	0.31081
15	0.466214
20	0.621619
25	0.777024
50	1.554048
100	3.108095
250	7.770238
500	15.540475
1000	31.08095

Slug/Cubic Foot to Pound/Cubic Foot Conversion Table

Slug/Cubic Foot (slug/ft³)	Pound/Cubic Foot (lb/ft³)
0.5	16.087024
1	32.174049
2	64.348097
5	160.870243
10	321.740486
15	482.610728
20	643.480971
25	804.351214
50	1,608.702428
100	3,217.404856
250	8,043.512139
500	16,087.024278
1000	32,174.048557

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Pound/Cubic Foot (lb/ft³)

Density

Exact conversion

Derived from mass per unit volume using the definitions above.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Slug/Cubic Foot (slug/ft³)

Density

Exact conversion

Derived from mass per unit volume using the definitions above.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Pound/Cubic Foot to Slug/Cubic Foot

To convert from Pound/Cubic Foot (lb/ft³) to Slug/Cubic Foot (slug/ft³), multiply the value by 0.0310809502.

Formula: slug/ft³ = lb/ft³ × 0.0310809502

Reverse: lb/ft³ = slug/ft³ × 32.1740485568

Step-by-Step Example

Start with your value in Pound/Cubic Foot. For example: 5 lb/ft³
Multiply by the conversion factor: 5 x 0.0310809502
The result is: 0.155405 slug/ft³

About Pound/Cubic Foot

The pound/cubic foot (lb/ft³) is a unit of density. One pound/cubic foot equals 16.01846337 kilogram per cubic metres. UnitConvertLab converts it against every other density unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: density calculations, engineering and science, education.

About Slug/Cubic Foot

The slug/cubic foot (slug/ft³) is a unit of density. One slug/cubic foot equals 515.3788184 kilogram per cubic metres. UnitConvertLab converts it against every other density unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: density calculations, engineering and science, education.

Frequently Asked Questions

How many Slug/Cubic Foot are in 1 Pound/Cubic Foot?

There are exactly 0.0310809502 Slug/Cubic Foot in 1 Pound/Cubic Foot. This means the conversion factor from Pound/Cubic Foot to Slug/Cubic Foot is 0.0310809502.

What is the formula to convert Pound/Cubic Foot to Slug/Cubic Foot?

The formula to convert Pound/Cubic Foot to Slug/Cubic Foot is: slug/ft³ = lb/ft³ × 0.0310809502. For example, to convert 10 Pound/Cubic Foot to Slug/Cubic Foot, you would multiply 10 by 0.0310809502.

What is a Pound/Cubic Foot?