| Abbreviation | Definition |
|---|---|
| CPG | Cents Per Gallon |
| CPH | Corpses Per Hour |
| CPI | Counts Per Inch |
| CPM | Conference Participant Minute |
| CPM | Copies Per Month |
| CPM | Cost Per Mil |
| CPM | Cost Per Mille |
| CPM | Cost Per Million |
| CPM | Counts Per Minute |
| CPS | Centimeters Per Second |
| CPS | Characters Per Second |
| CPS | Chips Per Second |
| CPS | Counts Per Second |
| CPS | Cycles Per Second |
| CPU | Capacitance Potential Units |
| CQT | Hundred Quarts (C = centrum = hundred) |
| CR | Cardinal Ratings |
| CR | Conversion Ratio |
| C-R | crown-rump |
| CRM | Certified Reference Material |