Convert volume units — liters, gallons, cups, milliliters, cubic meters, barrels and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 in³ | 0.000554114 fl oz | |
| 0.01 in³ | 0.00554114 fl oz | |
| 0.1 in³ | 0.0554114 fl oz | |
| 1 in³ | 0.554114 fl oz | |
| 5 in³ | 2.77057 fl oz | |
| 10 in³ | 5.54114 fl oz | |
| 50 in³ | 27.7057 fl oz | |
| 100 in³ | 55.4114 fl oz | |
| 1000 in³ | 554.114 fl oz |
Common cubic inch values converted to fluid ounce — factor: 1 in³ = 0.5541 fl oz
| Cubic Inch (in³) | Fluid Ounce (fl oz) | Context |
|---|---|---|
| 1 in³ | 0.5541 fl oz | — |
| 5 in³ | 2.771 fl oz | — |
| 10 in³ | 5.541 fl oz | — |
| 16 in³ | 8.866 fl oz | — |
| 30 in³ | 16.62 fl oz | — |
| 61 in³ | 33.8 fl oz | — |
| 100 in³ | 55.41 fl oz | — |
| 231 in³ | 128 fl oz | — |
| 500 in³ | 277.1 fl oz | — |
| 1,000 in³ | 554.1 fl oz | — |
| 1,728 in³ | 957.5 fl oz | — |
| 3,000 in³ | 1,662 fl oz | — |
| 5,000 in³ | 2,771 fl oz | — |
| 1e+04 in³ | 5,541 fl oz | — |
| 4.666e+04 in³ | 2.585e+04 fl oz | — |
Converting cubic inch to fluid ounce comes up frequently in cooking, chemistry, medicine, and engineering. A recipe written in metric units may need to be adapted for a kitchen using fluid ounce, or a laboratory protocol may specify volumes in cubic inch that need to be measured with equipment calibrated in fluid ounce.
In everyday use, knowing that 5 in³ = 2.771 fl oz and 10 in³ = 5.541 fl oz covers most common situations. For bulk calculations, 100 in³ = 55.41 fl oz is a useful anchor. The reverse conversion — fluid ounce back to cubic inch — uses the factor 1.805, so 1 fl oz = 1.805 in³.
All conversions use the internationally recognized factor of exactly 1 in³ = 0.5541 fl oz. Calculations are performed in IEEE 754 double-precision floating point, giving accuracy to at least 8 significant figures — more than sufficient for any practical application.
Formula: Fluid Ounce = Cubic Inch × 0.55411433
Multiply any cubic inch value by 0.55411433 to get fluid ounce. One cubic inch equals 0.55411433 fl oz.
Reverse: Cubic Inch = Fluid Ounce × 1.8046817
1 in³ = 0.55411433 fl oz. Memorize this for instant mental estimates.
Use 0.5541 as a quick mental factor. Multiply your cubic inches value by this to estimate fluid ounces.
To verify: multiply your result by 1.8046817 to recover the original in³ value.
Compares engine displacements in cubic inches — a Harley Sportster 1200 displaces 73.2 in³.
Calculates material volume for machined parts in cubic inches for cost estimation.
Compares refrigerator and oven interior volumes in cubic inches on US spec sheets.
Determines hydraulic cylinder displacement in cubic inches for legacy US equipment.
Compares compressor capacities in cubic inch displacement for older American systems.
Calculates product and box volumes in cubic inches to optimize pallet stacking.
The cubic inch is the volume of a cube with one-inch sides, equal to exactly 16.387064 mL. It belongs to US customary and British Imperial systems, in practical use since the 17th century.
Cubic inches appear most often in engine displacement for small engines and in precision machining for material volume calculations.
Interesting fact: A standard 12-fluid-ounce US soda can has a volume of about 21.7 cubic inches.
The US fluid ounce is defined as 1/128 of a US gallon, exactly 29.5735 mL. The US and UK fl oz differ: the US is 29.57 mL while the Imperial fl oz is 28.41 mL.
Fluid ounces appear on every US beverage container: a soda can is 12 fl oz, a water bottle is 16.9 fl oz, and a US shot glass is 1.5 fl oz.
Interesting fact: Despite sharing the name 'ounce', the fluid ounce measures volume, not weight. One fl oz of water weighs about 1.04 oz, but one fl oz of honey weighs about 1.5 oz.