Cubic Inches To Gallons Converter
Convert volume from cubic inches to US gallons. A useful conversion for engine displacement and small container capacities.
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Volume Conversion: Cubic Inches to Gallons
The Conversion Formula
The relationship between US gallons and cubic inches is a standard definition in the US customary system.
1 US Gallon = 231 Cubic Inches
This exact definition gives us the formulas for conversion:
- Cubic Inches to Gallons: Gallons = Cubic Inches / 231
- Gallons to Cubic Inches: Cubic Inches = Gallons * 231
Common Conversions
Here’s a quick reference table for converting cubic inches to gallons:
| Cubic Inches (in³) | US Gallons (gal) |
|---|---|
| 100 in³ | ~0.433 gal |
| 231 in³ | 1 gal |
| 500 in³ | ~2.165 gal |
| 1000 in³ | ~4.329 gal |
| 1728 in³ (1 cubic foot) | ~7.481 gal |
Practical Applications
This conversion is important in several specific areas:
- Automotive Engineering: Engine displacement is often measured in cubic inches (e.g., a 350 V8 engine) or liters. This conversion helps relate engine size to fluid capacities.
- Fluid Dynamics: Calculating the capacity of small tanks, hydraulic reservoirs, or pipes.
- Manufacturing: Determining the volume of small containers or parts.
- Gardening: Calculating the volume of small pots or planters to determine how much water they can hold.
FAQ
How many cubic inches are in a cubic foot?
There are 1,728 cubic inches in one cubic foot (12 inches × 12 inches × 12 inches).
Is this conversion the same for an Imperial gallon?
No. An Imperial gallon (used in the UK) is larger. 1 Imperial gallon is approximately 277.42 cubic inches.
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