| Bits | Norm | leer | Exponent | Mantisse | Verwendung |
| 32 | IEEE-754 | 1+8 Bit | 23 Bit | C, C++ | |
| 40 | 1+7 Bit | 32 Bit | C64 ROM | ||
| 64 | IEEE-754 | 1+11 Bit | 52 Bit | C, C++ | |
| 64 | 1+15 Bit | 48 Bit | Cray FP64WF | ||
| 80 | IEEE-754 | 1+15 Bit | 64 Bit | C, C++, 80x87 intern | |
| 96 | 16 Bit | 1+15 Bit | 64 Bit | x86 DEF | |
| 128 | IEEE-754 | 1+15 Bit | 112 Bit | Sparc |