18 cm³ ≈ 0.00395945 gal (Imperial; in US gallons: 18 cm³ = 0.0047551 US gal). To convert cubic centimeters to gallons, multiply by 0.00021996935: 18 × 0.00021996935 = 0.00395945.
How to convert cubic centimeters to gallons
gal = cm³ × 0.00021996935
- 1 cm³ = 0.00021996935 gal (and 1 gal = 4,546.0879 cm³).
- Multiply the amount by the factor: 18 × 0.00021996935 = 0.00395945.
- Answer: 18 cm³ ≈ 0.00395945 gal (rounded to 6 significant figures).
Cubic Centimeters to Gallons table
| Cubic Centimeters (cm³) | Gallons (gal) |
|---|---|
| 13 cm³ | 0.0028596 gal |
| 14 cm³ | 0.00307957 gal |
| 15 cm³ | 0.00329954 gal |
| 16 cm³ | 0.00351951 gal |
| 17 cm³ | 0.00373948 gal |
| 18 cm³ | 0.00395945 gal |
| 19 cm³ | 0.00417942 gal |
| 20 cm³ | 0.00439939 gal |
| 21 cm³ | 0.00461936 gal |
| 22 cm³ | 0.00483933 gal |
| 23 cm³ | 0.0050593 gal |
| cm³ | gal |
|---|---|
| 1 cm³ | 0.000219969 gal |
| 5 cm³ | 0.00109985 gal |
| 10 cm³ | 0.00219969 gal |
| 50 cm³ | 0.0109985 gal |
| 100 cm³ | 0.0219969 gal |
| 1,000 cm³ | 0.219969 gal |
Good to know
The gal here is the Imperial (UK) gallon: 1 gal = 4.54609 L. A US gallon is 3.78541 L.
In US gallons: 18 cm³ = 0.0047551 US gal.