Mass per volume density.
Pound per Cubic inches to Ounces per Gallon Converter — lb/in3 to oz/gal
Convert Pound per Cubic inch (lb/in3) to Ounce per Gallon (oz/gal) using the exact conversion factor (1 pound per cubic inch = 3,696 ounce per gallon). See the formula, worked examples, conversion table, unit comparison, and common uses.
Pound per Cubic inches to Ounces per Gallon converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 27679.90471 / 7.489151707.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pound per Cubic inches to Ounces per Gallon
Pound per Cubic inch and Ounce per Gallon both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Pound per Cubic inch is most often used for used in machining and materials engineering, particularly for describing the density of metals, where a smaller volume unit than the cubic foot gives a more convenient figure.
Formula
ounces per gallon = pound per cubic inches × 3696
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per cubic inch equals 27679.9047102 base units, and 1 ounce per gallon equals 7.48915170731 base units, so dividing one by the other gives the direct pound per cubic inch-to-ounce per gallon factor of 3696.
Simple example
1 lb/in3 × 3696 = 3,696 oz/gal
1 pound per cubic inch = 3,696 ounces per gallon.
Real-world example
1,000 lb/in3 × 3696 = 3,696,000 oz/gal
1,000 pound per cubic inches = 3,696,000 ounces per gallon.
Conversion table
| Pound per Cubic inch (lb/in3) | Ounce per Gallon (oz/gal) |
|---|---|
| 0.1 lb/in3 | 369.6 oz/gal |
| 1 lb/in3 | 3,696 oz/gal |
| 10 lb/in3 | 36,960 oz/gal |
| 100 lb/in3 | 369,600 oz/gal |
| 1,000 lb/in3 | 3,696,000 oz/gal |
| 10,000 lb/in3 | 36,960,000 oz/gal |
Reverse conversion: Ounce per Gallon to Pound per Cubic inch
1 oz/gal × 0.0002705627706 = 0.0002705628 lb/in3
1 ounce per gallon = 0.0002705628 pound per cubic inches.
pound per cubic inches = ounces per gallon × 0.000270562770563
For a page dedicated to this direction, see Ounce per Gallon to Pound per Cubic inch.
Pound per Cubic inch vs. Ounce per Gallon
| Aspect | Pound per Cubic inch | Ounce per Gallon |
|---|---|---|
| Family | US customary density unit | US customary concentration unit |
| Typical use | Used in machining and materials engineering, particularly for describing the density of metals, where a smaller volume unit than the cubic foot gives a more convenient figure | Used to express dilution rates on many US pesticide, herbicide, and household cleaning product labels, which commonly specify a number of fluid ounces of concentrate per gallon of water |
| Where it's used | United States | United States |
Understanding the Pound per Cubic inch
Pound per Cubic inch (lb/in3) measures density. A US customary density unit suited to describing dense materials in a small volume. It is classified as a US customary density unit.
Where it's used: United States
Uses of the Pound per Cubic inch today
- Used in machining and materials engineering, particularly for describing the density of metals, where a smaller volume unit than the cubic foot gives a more convenient figure
Understanding the Ounce per Gallon
Ounce per Gallon (oz/gal) measures concentration (dilution rate). A US customary way to express how much concentrate is mixed into each gallon of a diluted solution. It is classified as a US customary concentration unit.
Where it's used: United States
Uses of the Ounce per Gallon today
- Used to express dilution rates on many US pesticide, herbicide, and household cleaning product labels, which commonly specify a number of fluid ounces of concentrate per gallon of water
Pound per Cubic inch — sources
- US materials-engineering reference tables — Pounds per cubic inch is a commonly tabulated density unit for metals in US machining and materials references.
Ounce per Gallon — sources
- US product-label dilution conventions (pesticide/herbicide industry guides) — Fluid ounces of concentrate per gallon is a widely used label format for US spray and cleaning product dilution instructions.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ounces per gallon are in 1 pound per cubic inch?
1 pound per cubic inch equals 3,696 ounces per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert pound per cubic inch to ounce per gallon?
Multiply the pound per cubic inch value by 3696. The converter above does this instantly to whatever precision you set.
How do I convert ounce per gallon back to pound per cubic inch?
Use the reverse factor: 1 ounce per gallon equals 0.0002705628 pound per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per cubic inch?
Pound per Cubic inch (lb/in3) measures density. A US customary density unit suited to describing dense materials in a small volume. It is classified as a US customary density unit.
What is a ounce per gallon?
Ounce per Gallon (oz/gal) measures concentration (dilution rate). A US customary way to express how much concentrate is mixed into each gallon of a diluted solution. It is classified as a US customary concentration unit.
Is the pound per cubic inch to ounce per gallon conversion exact?
Yes. Both pound per cubic inch and ounce per gallon are defined by fixed standards rather than physical artifacts, so the factor of 3696 used above is exact to as many digits as you choose to display.
Where is the pound per cubic inch still used today?
United States
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.