| R-Value Formulae |
|
|
R-Values (USA) |
R-Values (UK) |
| Single-angle cos
(R-1cos) |
Single-angle cos (R-1cos) |
| R=Minimum of 24 single rotations | R=Minimum of 24 single rotations |
| Two-angle cos
(R-2cos) |
Two-angle cos (R-2cos) |
 |
 |
| Two-angle RMS
(R-2RMS) |
Two-angle RMS (R-2RMS) |
 |
 |
| Three-angle cos
(R-3cos) |
Three-angle cos (R-3cos) |
 |
 |
| Three-angle RMS
(R-3RMS) |
Three-angle RMS (R3RMS) |
 |
 |
|
R-Value Comparisons |
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