Cubic Centimeter to US Gallon Converter
One Cubic Centimeter equals 0.0002641720524 US Gallon (1 cm3 = 0.0002641720524 gal). Multiply a Cubic Centimeter value by 0.0002641720524 to get the equivalent in US Gallon. Use the calculator above for instant results, or follow the formula, worked examples, and reference table below.
Formula
gal = cm3 × 0.0002641720524
Multiply the Cubic Centimeter value by 0.0002641720524 to get the equivalent value in US Gallon.
Example Conversions
1 Cubic Centimeter (cm3)
0.0002641720524 US Gallon (gal)
5 Cubic Centimeter (cm3)
0.001320860262 US Gallon (gal)
10 Cubic Centimeter (cm3)
0.002641720524 US Gallon (gal)
25 Cubic Centimeter (cm3)
0.006604301309 US Gallon (gal)
100 Cubic Centimeter (cm3)
0.02641720524 US Gallon (gal)
Conversion Table
| Cubic Centimeter (cm3) | US Gallon (gal) |
|---|---|
| 0.1 | 0.00002641720524 |
| 0.5 | 0.0001320860262 |
| 1 | 0.0002641720524 |
| 2 | 0.0005283441047 |
| 5 | 0.001320860262 |
| 10 | 0.002641720524 |
| 25 | 0.006604301309 |
| 50 | 0.01320860262 |
| 100 | 0.02641720524 |
| 250 | 0.06604301309 |
| 500 | 0.1320860262 |
| 1000 | 0.2641720524 |
How to Convert Manually
Use these steps to convert Cubic Centimeter values to US Gallon without the calculator.
- Write down the value in Cubic Centimeter (cm3) that you want to convert.
- Multiply that value by 0.0002641720524.
- For example, 10 Cubic Centimeter × 0.0002641720524 = 0.002641720524 US Gallon.
- Label the result as US Gallon (gal).
Relative Size Comparison
This chart shows the visual difference in size between exactly one Cubic Centimeter and one US Gallon.
About Cubic Centimeter and US Gallon
The cubic centimeter equals exactly one milliliter. Engine sizes (cc), medical syringes, and solid part volumes use it. The US gallon is defined as 231 cubic inches, exactly 3.785411784 liters. US fuel prices, milk jugs, and paint cans are all per-gallon quantities. One Cubic Centimeter equals 0.0002641720524 US Gallon (1 cm3 = 0.0002641720524 gal). Cubic Centimeter to US Gallon conversion comes up most often in motorcycle and small engine sizes (cc) and in syringe volumes, typically when figures need restating for US fuel prices.
Precision and Rounding: US and imperial volume units share names but differ in size (an imperial gallon is about 20% larger than a US gallon), so confirm which system a figure uses before converting. Kitchen work tolerates rounding to the nearest milliliter or quarter-teaspoon; fuel, chemistry, and brewing need three or more decimal places.
Conversion factors per NIST Special Publication 811 and the BIPM SI Brochure (9th edition) (reference).
Worked Example
15 Cubic Centimeter equals 0.003962580785 US Gallon.
15 cm3 × 0.0002641720524 = 0.003962580785 gal
FAQ
How do I convert Cubic Centimeter to US Gallon?
Multiply the Cubic Centimeter value by 0.0002641720524 to get the equivalent value in US Gallon.
What is the formula for Cubic Centimeter to US Gallon?
The formula is gal = cm3 × 0.0002641720524.
How many US Gallon are in 1 Cubic Centimeter?
1 Cubic Centimeter equals 0.0002641720524 US Gallon.
Can I convert US Gallon back to Cubic Centimeter?
Yes. 1 US Gallon equals 3785.411784 Cubic Centimeter, and the related converter can reverse the calculation.
What are common names for Cubic Centimeter and US Gallon?
Cubic Centimeter is shown as cm3 and may also be searched as cubic centimeters, cc, cm³. US Gallon is shown as gal and may also be searched as gallons, us gallons.
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