Volume
gal (US)tocm³
Convert US gallons (gal (US)) to cubic centimetres (cm³).
Factor1 gal (US) = 3785.412 cm³
Converter
gal (US)
Accepts numbers or expressions, e.g. 150 + 14.7
Result
cm³
Rendered to 6 significant figures.
Formula
Formula
cm³ = gal (US) × 3785.412
Multiply any value in US gallons by 3785.412 to obtain the value in cubic centimetres.
Worked example
Convert 1 gal (US) to cm³.
- 01Start with 1 gal (US).
- 02Multiply by the conversion factor: 1 × 3785.412 = 3785.41 cm³.
Result1 gal (US) = 3785.41 cm³
Conversion table
| gal (US) | cm³ |
|---|---|
| 1 | 3785.4 |
| 2 | 7570.8 |
| 5 | 18927 |
| 10 | 37854 |
| 20 | 75708 |
| 50 | 1.8927e+5 |
| 100 | 3.7854e+5 |
| 200 | 7.5708e+5 |
| 500 | 1.8927e+6 |
| 1000 | 3.7854e+6 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from gal (US) to cm³?
1 gal (US) equals 3785.412 cm³. To convert, multiply the value in US gallons by 3785.412.
How do I convert 1 gal (US) to cm³?
1 gal (US) = 3785.41 cm³. For any value, multiply by 3785.412.
How do I convert cm³ back to gal (US)?
Divide by the same factor — or equivalently, multiply by 0.0002641721. So 1 cm³ = 0.000264172 gal (US).
When would I need to convert US gallon to cubic centimetre?
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).