Gematria · Isopsephy
Type a word or phrase in Hebrew, Aramaic, or Greek. The tally shows how the value is built, letter by letter, using the standard system for whichever script you pick.
Neither Hebrew nor Greek had separate digits. Scribes counted with the alphabet itself: in Greek the Milesian system ran alpha through theta for 1 to 9, iota through koppa for the tens, rho through sampi for the hundreds, and Hebrew and Aramaic used the same convention with their twenty-two letters. Adding up a word's letters as numbers is called gematria in Hebrew sources and isopsephy in Greek ones.
The practice is inside the text, not only around it. Revelation 13:18 asks the reader to reckon the number of the beast and writes it with three Greek numeral letters. Rabbinic literature uses gematria as remez, a hint that draws two passages alongside each other, and several church fathers used isopsephy the same way: Irenaeus tested Greek names that total 666 without claiming to have settled the question.
Equal values do not by themselves establish a link between two words. Any vocabulary large enough will produce coincidences at every number. A shared value is a place to start looking, not an argument. Vowel points, breathings, accents, and punctuation carry no numeric value and are ignored here.