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📏 Pounds per cubic foot to Pounds per US gallon Converter

Convert pounds per cubic foot (lb/ft³) to pounds per us gallon (lb/gal) instantly, with the formula, a worked example and a conversion table.

Quick answer: 1 pound per cubic foot (lb/ft³) = 0.13368056 pounds per us gallon (lb/gal). Formula: lb/gal = lb/ft³ × 0.13368056.

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Pounds per cubic foot to Pounds per US gallon Converter inputs

Result

1 lb/ft³ =

0.13368056 lb/gal

lb/gal = lb/ft³ × 0.13368056

1 pound per cubic foot = 0.13368056 lb/gal · lb/gal to lb/ft³

Pounds per cubic foot to Pounds per US gallon conversion table

Pounds per cubic foot (lb/ft³)Pounds per US gallon (lb/gal)
0.1 lb/ft³0.013368056 lb/gal
0.5 lb/ft³0.066840278 lb/gal
1 lb/ft³0.13368056 lb/gal
2 lb/ft³0.26736111 lb/gal
3 lb/ft³0.40104167 lb/gal
5 lb/ft³0.66840278 lb/gal
10 lb/ft³1.3368056 lb/gal
20 lb/ft³2.6736111 lb/gal
25 lb/ft³3.3420139 lb/gal
50 lb/ft³6.6840278 lb/gal
100 lb/ft³13.368056 lb/gal
1,000 lb/ft³133.68056 lb/gal

Other density conversions

lb/ft³ to kg/m³lb/ft³ to g/cm³lb/ft³ to lb/gal

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How to convert pounds per cubic foot to pounds per us gallon

Multiply the number of pounds per cubic foot by 0.13368056 to get pounds per us gallon: lb/gal = lb/ft³ × 0.13368056.

Example: 5 lb/ft³ = 0.66840278 lb/gal.

The pound per cubic foot (lb/ft³) and the pound per us gallon (lb/gal) are both units of density. Need the opposite direction? Use the lb/gal to lb/ft³ converter.

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Metric and imperial units

The metric system (SI) is used by almost every country and by science worldwide. Its units scale by powers of ten – 1 kilometer is 1,000 meters, 1 meter is 100 centimeters – which makes conversions inside the system easy. The imperial and US customary systems (inches, feet, pounds, gallons) are still used daily in the United States and partly in the UK.

Since 1959 the inch has been defined as exactly 2.54 centimeters and the pound as exactly 0.45359237 kilograms, so conversions between the two systems are exact. Note that a US gallon (3.785 L) and an imperial gallon (4.546 L) are different – choose the right one above.

This converter covers 18 categories and 106 units: length, weight, temperature, volume, area, speed, time, data, energy, pressure, power, angle, force, torque, frequency, flow rate, illuminance, density.

Frequently asked questions

How many pounds per us gallon are in a pound per cubic foot?

1 pound per cubic foot = 0.13368056 pounds per us gallon.

How do I convert pounds per cubic foot to pounds per us gallon?

Use the formula lb/gal = lb/ft³ × 0.13368056. For example, 5 lb/ft³ = 0.66840278 lb/gal.

How do I convert pounds per us gallon back to pounds per cubic foot?

1 pound per us gallon = 7.4805195 pounds per cubic foot. Use the lb/gal to lb/ft³ converter linked on this page.

Are these conversions exact?

Yes – all factors use the internationally defined values (for example 1 inch = 2.54 cm exactly, 1 pound = 0.45359237 kg exactly). Results are rounded to 8 significant digits for display.