Cubic inch (in³)
A cube one inch on each side.
What is a cubic inch?
- Symbol
- in³
- Quantity
- Volume
- Unit system
- US customary
- Definition
- A cube one inch on each side.
- Exact
- Yes, the value is exact by definition
- Source
- International yard and pound agreement (1959)
Common applications
Used in the United States for engine displacement and small container volumes.
Cubic inch in other volume units
- 1 in³ = 16.387064 mLMilliliter
- 1 in³ = 0.016387064 LLiter
- 1 in³ = 16.387064 cm³Cubic centimeter
- 1 in³ = 0.000016387064 m³Cubic meter
- 1 in³ ≈ 3.324675325 tspTeaspoon (US customary)
- 1 in³ ≈ 1.108225108 tbspTablespoon (US customary)
- 1 in³ ≈ 0.5541125541 fl ozFluid ounce (US)
- 1 in³ ≈ 0.06926406926 cupCup (US customary)
- 1 in³ ≈ 0.03463203463 ptPint (US liquid)
- 1 in³ ≈ 0.01731601732 qtQuart (US liquid)
- 1 in³ ≈ 0.004329004329 galGallon (US liquid)
- 1 in³ ≈ 0.576744024 imp fl ozFluid ounce (imperial)
- 1 in³ ≈ 0.0288372012 imp ptPint (imperial)
- 1 in³ ≈ 0.0144186006 imp qtQuart (imperial)
- 1 in³ ≈ 0.00360465015 imp galGallon (imperial)
- 1 in³ ≈ 0.0005787037037 ft³Cubic foot
- 1 in³ ≈ 0.00002143347051 yd³Cubic yard
Cubic inch quick reference
| Cubic inch | Liter | Gallon (US liquid) | Milliliter |
|---|---|---|---|
| 1 in³ | = 0.016387064 L | ≈ 0.004329004329 gal | = 16.387064 mL |
| 10 in³ | = 0.16387064 L | ≈ 0.04329004329 gal | = 163.87064 mL |
| 100 in³ | = 1.6387064 L | ≈ 0.4329004329 gal | = 1638.7064 mL |
| 1000 in³ | = 16.387064 L | ≈ 4.329004329 gal | = 16387.064 mL |
Where the cubic inch fits
The next smaller volume unit is the US tablespoon (tbsp). 1 in³ ≈ 1.108225108 tbsp, and 1 tbsp = 0.90234375 in³.
The next larger volume unit is the imperial fluid ounce (imp fl oz). 1 in³ ≈ 0.576744024 imp fl oz, and 1 imp fl oz ≈ 1.733871455 in³.
Frequently asked questions
- How many liters are in one cubic inch?
- One cubic inch = 0.016387064 L (liters).
- How many US gallons are in one cubic inch?
- One cubic inch ≈ 0.004329004329 gal (US gallons).
- How many milliliters are in one cubic inch?
- One cubic inch = 16.387064 mL (milliliters).