Index - R
| Radian | |
| 1 (Type/Class) | Data.Units.SI, Data.Metrology.SI.Poly, Data.Metrology.SI.Mono, Data.Metrology.SI |
| 2 (Data Constructor) | Data.Units.SI, Data.Metrology.SI.Poly, Data.Metrology.SI.Mono, Data.Metrology.SI |
| Rankine | |
| 1 (Type/Class) | Data.Units.US.Misc |
| 2 (Data Constructor) | Data.Units.US.Misc |
| RegisterTon | |
| 1 (Type/Class) | Data.Units.US.DryVolume |
| 2 (Data Constructor) | Data.Units.US.DryVolume |
| Resistance | |
| 1 (Type/Class) | Data.Dimensions.SI |
| 2 (Type/Class) | Data.Metrology.SI.MonoTypes, Data.Metrology.SI.Mono, Data.Metrology.SI |
| 3 (Type/Class) | Data.Metrology.SI.PolyTypes, Data.Metrology.SI.Poly |
| Rod | |
| 1 (Type/Class) | Data.Units.US.Survey |
| 2 (Data Constructor) | Data.Units.US.Survey |