Pound per Cubic Inch (lb/in³)
The pound per cubic inch (lb/in³) is a compact imperial density scale — about 27,680 kg/m³ per lb/in³.
Pounds per cubic inch describe metals and alloys in US machining, ballistics, and materials handbooks.
Pound per Cubic Inch to Pound per Cubic Foot
Convert pound per cubic inch to pound per cubic foot instantly. Type in either field — results update live.
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Density Pound per Cubic Inch Pound per Cubic Foot
1 pound per cubic inch = 1,727.9999997902 pounds per cubic foot
Unit
Unit
Conversion table
Selected lb/in³ values converted to lb/ft³ using the exact factor from this tool.
| lb/in³ | lb/ft³ |
|---|---|
| 0.01 | 17.2799999979 |
| 0.1 | 172.799999979 |
| 1 | 1,727.9999997902 |
| 2 | 3,455.9999995805 |
| 3 | 5,183.9999993707 |
| 5 | 8,639.9999989512 |
| 10 | 17,279.9999979024 |
| 20 | 34,559.9999958048 |
| 50 | 86,399.9999895121 |
| 100 | 172,799.9999790242 |
| 1,000 | 1,727,999.9997902422 |
How to convert
Exact conversion factors in both directions, plus a worked example.
1 lb/in³ = 1727.9999997902 lb/ft³
1 lb/ft³ = 0.0005787037 lb/in³
To convert pound per cubic inch to pound per cubic foot, multiply by 1727.9999997902.
To convert pound per cubic foot to pound per cubic inch, multiply by 0.0005787037.
Example: convert 10 lb/in³ to lb/ft³
10 × 1727.9999997902 = 17279.9999979024 lb/ft³
About these units
Short background on the units used in this conversion.
Pound per Cubic Foot (lb/ft³)
The pound per cubic foot (lb/ft³) is an imperial density unit common in US construction and bulk material handling.
Pounds per cubic foot rate lumber, foam insulation, soil fill, and aggregate in US engineering references.
Frequently asked questions
How many pounds per cubic foot are in one pound per cubic inch?
One pound per cubic inch equals 1,727.9999997902 pounds per cubic foot. Multiply your pounds per cubic inch value by 1,727.9999997902 to convert to pounds per cubic foot.
What is the conversion formula?
lb/ft³ = lb/in³ × 1,727.9999997902The reverse is
lb/in³ = lb/ft³ × 0.0005787037, using the same exact factors as this converter.Is this Pound per Cubic Inch to Pound per Cubic Foot converter private?
Yes. All calculations run locally in your browser. Nothing you type is sent to a server.
All pound per cubic inch conversions
Jump to any density conversion starting from pound per cubic inch — including the reverse direction and every other unit in our dataset.
pound per cubic foot (lb/ft³) → pound per cubic inch (lb/in³)
pound per cubic inch (lb/in³) → kilogram per cubic meter (kg/m³)pound per cubic inch (lb/in³) → gram per cubic centimeter (g/cm³)pound per cubic inch (lb/in³) → gram per milliliter (g/mL)pound per cubic inch (lb/in³) → gram per cubic meter (g/m³)pound per cubic inch (lb/in³) → kilogram per cubic centimeter (kg/cm³)pound per cubic inch (lb/in³) → gram per cubic millimeter (g/mm³)pound per cubic inch (lb/in³) → milligram per cubic meter (mg/m³)pound per cubic inch (lb/in³) → milligram per cubic centimeter (mg/cm³)pound per cubic inch (lb/in³) → milligram per cubic millimeter (mg/mm³)pound per cubic inch (lb/in³) → exagram per liter (Eg/L)pound per cubic inch (lb/in³) → petagram per liter (Pg/L)pound per cubic inch (lb/in³) → teragram per liter (Tg/L)pound per cubic inch (lb/in³) → gigagram per liter (Gg/L)pound per cubic inch (lb/in³) → megagram per liter (Mg/L)pound per cubic inch (lb/in³) → kilogram per liter (kg/L)pound per cubic inch (lb/in³) → hectogram per liter (hg/L)pound per cubic inch (lb/in³) → dekagram per liter (dag/L)pound per cubic inch (lb/in³) → gram per liter (g/L)pound per cubic inch (lb/in³) → decigram per liter (dg/L)pound per cubic inch (lb/in³) → centigram per liter (cg/L)pound per cubic inch (lb/in³) → milligram per liter (mg/L)pound per cubic inch (lb/in³) → microgram per liter (µg/L)pound per cubic inch (lb/in³) → nanogram per liter (ng/L)pound per cubic inch (lb/in³) → picogram per liter (pg/L)pound per cubic inch (lb/in³) → femtogram per liter (fg/L)pound per cubic inch (lb/in³) → attogram per liter (ag/L)pound per cubic inch (lb/in³) → pound per cubic yard (lb/yd³)pound per cubic inch (lb/in³) → pound per gallon (us) (lb/US gal)pound per cubic inch (lb/in³) → pound per gallon (uk) (lb/UK gal)pound per cubic inch (lb/in³) → ounce per cubic foot (oz/ft³)pound per cubic inch (lb/in³) → ounce per cubic inch (oz/in³)pound per cubic inch (lb/in³) → ounce per gallon (us) (oz/US gal)pound per cubic inch (lb/in³) → ounce per gallon (uk) (oz/UK gal)pound per cubic inch (lb/in³) → grain per cubic foot (gr/ft³)pound per cubic inch (lb/in³) → grain per gallon (us) (gr/US gal)pound per cubic inch (lb/in³) → grain per gallon (uk) (gr/UK gal)pound per cubic inch (lb/in³) → ton (short) per cubic yard (short ton/yd³)pound per cubic inch (lb/in³) → ton (long) per cubic yard (long ton/yd³)pound per cubic inch (lb/in³) → slug per cubic foot (slug/ft³)pound per cubic inch (lb/in³) → psi per 1000 feet (psi/1000 ft)pound per cubic inch (lb/in³) → earth's density (mean) (Earth ρ)