9cc

9cc is a shorthand notation for a volume of nine cubic centimeters. The term “cc” stands for cubic centimeters, an older but still common unit of volume. Because 1 cubic centimeter equals 1 milliliter, 9cc equals 9 milliliters and 0.009 liters. This unit is used in various fields, most notably to express engine displacement in small internal combustion engines and the capacity of syringes or dosing vials.

In automotive and hobbyist contexts, “cc” describes how much air and fuel an engine can draw per cycle; higher displacement generally indicates greater potential power, though other factors also influence performance. Engines with about 9cc displacement are extremely small and tend to appear in niche applications such as micro hobby engines, very small RC devices, or other specialized tools rather than standard consumer vehicles.

In medical and laboratory settings, volumes are increasingly expressed in milliliters or liters, but “cc” remains common in some documentation and dosing remarks. For example, a syringe labeled as “9 cc” would be expected to hold around nine milliliters. When converting measurements, treat cc and mL as interchangeable for practical purposes.

Overall, 9cc is primarily encountered as a unit of volume rather than as a standalone product name or designation. See also cubic centimeter, milliliter, and engine displacement.