Pound/Cubic Foot to Pound/Gallon (US) Converter

Density Converter

16 units available

Decimals:

From

To

0.133681

1 lb/ft³ = 0.133681 lb/gal

Formula:

lb/gal = lb/ft³ × 0.1336805556

With your value: 1 lb/ft³ = 0.13368056 lb/gal

Other Pound/Cubic Foot to Pound/Gallon (US) conversions

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

Pound/Cubic Foot to Pound/Gallon (US) Conversion Table

Pound/Cubic Foot (lb/ft³)	Pound/Gallon (US) (lb/gal)
0.5	0.06684
1	0.133681
2	0.267361
5	0.668403
10	1.336806
15	2.005208
20	2.673611
25	3.342014
50	6.684028
100	13.368056
250	33.420139
500	66.840278
1000	133.680556

Pound/Gallon (US) to Pound/Cubic Foot Conversion Table

Pound/Gallon (US) (lb/gal)	Pound/Cubic Foot (lb/ft³)
0.5	3.74026
1	7.480519
2	14.961039
5	37.402597
10	74.805195
15	112.207792
20	149.61039
25	187.012987
50	374.025974
100	748.051948
250	1,870.12987
500	3,740.25974
1000	7,480.519481

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

Pound/Gallon (US) (lb/gal)

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 Pound/Gallon (US)

To convert from Pound/Cubic Foot (lb/ft³) to Pound/Gallon (US) (lb/gal), multiply the value by 0.1336805556.

Formula: lb/gal = lb/ft³ × 0.1336805556

Reverse: lb/ft³ = lb/gal × 7.4805194805

Step-by-Step Example

Start with your value in Pound/Cubic Foot. For example: 5 lb/ft³
Multiply by the conversion factor: 5 x 0.1336805556
The result is: 0.668403 lb/gal

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 Pound/Gallon (US)

The pound/gallon (us) (lb/gal) is a unit of density. One pound/gallon (us) equals 119.8264273 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 Pound/Gallon (US) are in 1 Pound/Cubic Foot?

There are exactly 0.1336805556 Pound/Gallon (US) in 1 Pound/Cubic Foot. This means the conversion factor from Pound/Cubic Foot to Pound/Gallon (US) is 0.1336805556.

What is the formula to convert Pound/Cubic Foot to Pound/Gallon (US)?

The formula to convert Pound/Cubic Foot to Pound/Gallon (US) is: lb/gal = lb/ft³ × 0.1336805556. For example, to convert 10 Pound/Cubic Foot to Pound/Gallon (US), you would multiply 10 by 0.1336805556.

What is a Pound/Cubic Foot?