| Linguistic variable | Numeric scale | TFN scale () | Reciprocal () |
| Equally strong | 1 | (1, 1, 1) | (1, 1, 1) | Moderately strong | 3 | (1, 3/2, 2) | (1/2, 2/3, 1) | Strong | 5 | (2, 5/2, 3) | (1/3, 2/5, 1/2) | Very strong | 7 | (3, 7/2, 4) | (1/4, 2/7, 1/3) | Extremely strong | 9 | (4, 4/5, 5) | (2/9, 2/9, 1/4) | Intermediate | 2, 4, 6, 8 | (1/2, 1, 3/2); (3/2, 2, 5/2); (5/2, 3, 7/2); (7/2, 4, 9/2) | (2/3, 1, 2); (2/5, 1/2, 2/3); (2/7, 1/3, 2/5); (2/9, 1/4, 2/7) |
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