Cubic Inch to Gallon (US) Converter
Unit Converter
Instant · Precise · Universal
47 units available
6 categories total
How to Convert Cubic Inch to Gallon (US)
To mL: multiply by 16.387064. To liters: multiply by 0.016387064. To cubic centimeters: multiply by 16.387064.
1 in³ = 16.387064 mL = 16.387064 cm³. There are 1,728 in³ in one cubic foot.
For example, 1 Cubic Inch (in³) = 0.004329004329 Gallon (US) (gal (US)).
Cubic Inch to Gallon (US) — Common Values
| Cubic Inch (in³) | Gallon (US) (gal (US)) |
|---|---|
| 0.1 | 0.0004329004329 |
| 0.5 | 0.002164502165 |
| 1 | 0.004329004329 |
| 2 | 0.008658008658 |
| 5 | 0.02164502165 |
| 10 | 0.04329004329 |
| 25 | 0.1082251082 |
| 50 | 0.2164502165 |
| 100 | 0.4329004329 |
| 500 | 2.164502165 |
| 1000 | 4.329004329 |
About Cubic Inch (in³)
Definition
The cubic inch is an imperial unit of volume equal to the space occupied by a cube one inch on each side.
Mathematical Relationship
1 in³ = 16.387064 mL = 16.387064 cm³. There are 1,728 in³ in one cubic foot.
Conversion Formula
To mL: multiply by 16.387064. To liters: multiply by 0.016387064. To cubic centimeters: multiply by 16.387064.
Practical Applications
Engine displacement (classic American V8s measured in cubic inches), small container volumes, and manufacturing specifications.
Interesting Facts
The iconic Chevrolet 'small block 350' engine has a displacement of 350 cubic inches (5.7 liters). A golf ball is about 2.48 in³.
Common Mistakes
Confusing cubic inches with fluid ounces — 1 in³ ≈ 0.554 fl oz (US). They are not equivalent.
Educational Tips
Think of a standard die (game dice) — it's roughly 1 in³. A cubic inch of water weighs about 0.578 ounces.
About Gallon (US) (gal (US))
Definition
The US gallon is a unit of volume equal to 128 US fluid ounces, or approximately 3.785 liters, used for large liquid volumes.
Mathematical Relationship
1 US gal = 4 US qt = 8 US pt = 16 US cups = 128 US fl oz = 3.785411784 L.
Conversion Formula
To liters: multiply by 3.785. To UK gallons: multiply by 0.832674. To cubic meters: multiply by 0.003785.
Practical Applications
Fuel prices ($/gal), milk jugs, water cooler bottles, swimming pool chemicals, and paint quantities.
Interesting Facts
The US gallon is smaller than the UK gallon: 3.785 L vs. 4.546 L. This means UK fuel economy figures look better by number!
Common Mistakes
Confusing US and UK gallons — UK gallons are 20% larger. Fuel economy (mpg) differs significantly between the two systems.
Educational Tips
1 gallon ≈ 3.8 liters ≈ a large milk jug. 4 quarts = 1 gallon. A gallon of water weighs about 8.3 pounds.