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Volume

cm³togal (US)

Convert cubic centimetres (cm³) to US gallons (gal (US)).

Factor1 cm³ = 0.0002641721 gal (US)

Converter

cm³

Accepts numbers or expressions, e.g. 150 + 14.7

Result
0.999891gal (US)

Rendered to 6 significant figures.

Formula

Formula
gal (US) = cm³ × 0.0002641721

Multiply any value in cubic centimetres by 0.0002641721 to obtain the value in US gallons.

Worked example

Convert 3785 cm³ to gal (US).

  1. 01Start with 3785 cm³.
  2. 02Multiply by the conversion factor: 3785 × 0.0002641721 = 0.999891 gal (US).
Result3785 cm³ = 0.999891 gal (US)

Conversion table

cm³gal (US)
10.00026417
20.00052834
50.0013209
100.0026417
200.0052834
500.013209
1000.026417
2000.052834
5000.13209
10000.26417

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from cm³ to gal (US)?
1 cm³ equals 0.0002641721 gal (US). To convert, multiply the value in cubic centimetres by 0.0002641721.
How do I convert 1 cm³ to gal (US)?
1 cm³ = 0.000264172 gal (US). For any value, multiply by 0.0002641721.
How do I convert gal (US) back to cm³?
Divide by the same factor — or equivalently, multiply by 3785.412. So 1 gal (US) = 3785.41 cm³.
When would I need to convert cubic centimetre to US gallon?
Volume conversions are used for tank sizing, batch calculations, and bridging between vendor specs (gallons, barrels, ft³) and process documentation (m³, litres).
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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