Mispar Siduri
Mispar siduri (“ordinal number”) ignores the numeral values and counts each letter’s position in the alphabet: א is 1, ב is 2, and so on to ת at 22.
Letter values
| Letter | Name | Ordinal value |
|---|---|---|
| א | Alef | 1 |
| ב | Bet | 2 |
| ג | Gimel | 3 |
| ד | Dalet | 4 |
| ה | He | 5 |
| ו | Vav | 6 |
| ז | Zayin | 7 |
| ח | Chet | 8 |
| ט | Tet | 9 |
| י | Yod | 10 |
| כ | Kaf | 11 |
| ל | Lamed | 12 |
| מ | Mem | 13 |
| נ | Nun | 14 |
| ס | Samekh | 15 |
| ע | Ayin | 16 |
| פ | Pe | 17 |
| צ | Tsadi | 18 |
| ק | Qof | 19 |
| ר | Resh | 20 |
| ש | Shin | 21 |
| ת | Tav | 22 |
| ך | Kaf (final) | 11 |
| ם | Mem (final) | 13 |
| ן | Nun (final) | 14 |
| ף | Pe (final) | 17 |
| ץ | Tsadi (final) | 18 |
Final letters
By default the calculator gives a final letter the position of its ordinary form (ם = 13, like מ). Some systems instead number the finals after ת: ך 23, ם 24, ן 25, ף 26, ץ 27. You can switch to that convention under Options in the calculator.
Worked examples
שלום — shalom
ש 21 + ל 12 + ו 6 + ם 13 = 52
אמת — emet
א 1 + מ 13 + ת 22 = 36
חי — chai
ח 8 + י 10 = 18