Convert volume units — liters, gallons, cups, milliliters, cubic meters, barrels and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 ft³ | 1.72799 in³ | |
| 0.01 ft³ | 17.2799 in³ | |
| 0.1 ft³ | 172.799 in³ | |
| 1 ft³ | 1727.99 in³ | |
| 5 ft³ | 8639.97 in³ | |
| 10 ft³ | 17279.9 in³ | |
| 50 ft³ | 86399.7 in³ | |
| 100 ft³ | 172799 in³ | |
| 1000 ft³ | 1.72799e+06 in³ |
Common cubic foot values converted to cubic inch — factor: 1 ft³ = 1728 in³
| Cubic Foot (ft³) | Cubic Inch (in³) | Context |
|---|---|---|
| 0.01 ft³ | 17.28 in³ | — |
| 0.1 ft³ | 172.8 in³ | — |
| 0.5 ft³ | 864 in³ | — |
| 1 ft³ | 1,728 in³ | — |
| 2 ft³ | 3,456 in³ | — |
| 5 ft³ | 8,640 in³ | — |
| 10 ft³ | 1.728e+04 in³ | — |
| 27 ft³ | 4.666e+04 in³ | — |
| 50 ft³ | 8.64e+04 in³ | — |
| 100 ft³ | 1.728e+05 in³ | — |
| 200 ft³ | 3.456e+05 in³ | — |
| 500 ft³ | 8.64e+05 in³ | — |
| 1,000 ft³ | 1,728,000 in³ | — |
| 5,000 ft³ | 8,640,000 in³ | — |
| 1e+04 ft³ | 17,280,000 in³ | — |
Converting cubic foot to cubic inch comes up frequently in cooking, chemistry, medicine, and engineering. A recipe written in metric units may need to be adapted for a kitchen using cubic inch, or a laboratory protocol may specify volumes in cubic foot that need to be measured with equipment calibrated in cubic inch.
In everyday use, knowing that 5 ft³ = 8640 in³ and 10 ft³ = 1.728e+04 in³ covers most common situations. For bulk calculations, 100 ft³ = 1.728e+05 in³ is a useful anchor. The reverse conversion — cubic inch back to cubic foot — uses the factor 0.0005787, so 1 in³ = 0.0005787 ft³.
All conversions use the internationally recognized factor of exactly 1 ft³ = 1728 in³. 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: Cubic Inch = Cubic Foot × 1727.9934
Multiply any cubic foot value by 1727.9934 to get cubic inch. One cubic foot equals 1727.9934 in³.
Reverse: Cubic Foot = Cubic Inch × 0.00057870593
Cubic feet × 1728 = cubic inches. Exact.
1 ft³ = 1,728 in³ — comes from 12³ = 1,728.
in³ ÷ 1728 = ft³.
Sizes ductwork and fan capacities using CFM (cubic feet per minute).
Records natural gas consumption displayed in cubic feet on residential meters.
Estimates shipment volume in cubic feet to quote truck size and cargo weight.
Orders ready-mix in cubic yards (27 ft³) and converts smaller pours to cubic feet.
Measures timber volume in cubic feet for lumber yield and valuation.
Calculates pool volume in cubic feet to size filtration systems.
The cubic foot is the Imperial and US customary volume unit equal to the space occupied by a cube with one-foot sides. It was formally standardized in the UK by the Weights and Measures Act of 1824.
Cubic feet appear in HVAC (airflow in CFM), natural gas billing in the US, and real-estate appraisals. One cubic foot equals exactly 1,728 cubic inches or approximately 28.317 liters.
Interesting fact: US natural gas meters read in CCF (hundreds of cubic feet) or MCF (thousands), making the cubic foot the invisible unit behind most American gas utility bills.
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.