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

Density Converter

16 units available

Decimals:

From

To

231

1 lb/in³ = 231 lb/gal

Formula:

lb/gal = lb/in³ × 230.9999999998

With your value: 1 lb/in³ = 231 lb/gal

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

2 lb/in³ to lb/gal 3 lb/in³ to lb/gal 4 lb/in³ to lb/gal 5 lb/in³ to lb/gal 6 lb/in³ to lb/gal 7 lb/in³ to lb/gal 8 lb/in³ to lb/gal

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

Pound/Cubic Inch (lb/in³)	Pound/Gallon (US) (lb/gal)
0.5	115.5
1	231
2	462
5	1,155
10	2,310
15	3,465
20	4,620
25	5,775
50	11,550
100	23,100
250	57,750
500	115,500
1000	231,000

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

Pound/Gallon (US) (lb/gal)	Pound/Cubic Inch (lb/in³)
0.5	0.002165
1	0.004329
2	0.008658
5	0.021645
10	0.04329
15	0.064935
20	0.08658
25	0.108225
50	0.21645
100	0.4329
250	1.082251
500	2.164502
1000	4.329004

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 Inch (lb/in³)

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 Inch to Pound/Gallon (US)

To convert from Pound/Cubic Inch (lb/in³) to Pound/Gallon (US) (lb/gal), multiply the value by 230.9999999998.

Formula: lb/gal = lb/in³ × 230.9999999998

Reverse: lb/in³ = lb/gal × 0.0043290043

Step-by-Step Example

Start with your value in Pound/Cubic Inch. For example: 5 lb/in³
Multiply by the conversion factor: 5 x 230.9999999998
The result is: 1,155 lb/gal

About Pound/Cubic Inch

The pound/cubic inch (lb/in³) is a unit of density. One pound/cubic inch equals 27679.90471 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 Inch?

There are exactly 230.9999999998 Pound/Gallon (US) in 1 Pound/Cubic Inch. This means the conversion factor from Pound/Cubic Inch to Pound/Gallon (US) is 230.9999999998.

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

The formula to convert Pound/Cubic Inch to Pound/Gallon (US) is: lb/gal = lb/in³ × 230.9999999998. For example, to convert 10 Pound/Cubic Inch to Pound/Gallon (US), you would multiply 10 by 230.9999999998.

What is a Pound/Cubic Inch?