How to Calculate Abjad Values: 9 Common Mistakes to Avoid

Two friends calculate the Abjad value of the same name, Khalil. One arrives at 96, the other at 670. Both added correctly; the difference lies in which letters they started adding. In Abjad, what spoils a result is rarely the arithmetic itself. It is the steps before it: how the name is spelled, which marks are counted, and which rule is applied where.

This article gathers the points to check before you trust a number. We briefly restate the method, then show nine common mistakes, each with a wrong and a right example. You can place the checklist at the end next to your own calculation and tick it off line by line.

The Correct Method in Three Steps

1. Write the name in Arabic script, using its Arabic or Ottoman spelling. The traditional spelling of the name is what counts, not its Latin transcription.
2. Write the ebced-i kebir value of each letter. The standard table runs from ا 1, ب 2, ج 3, د 4 up to غ 1000.
3. Add the values. Short vowel marks are not counted; only the written letters are added.

A small example: Omar (Turkish Ömer) has four letters in Latin script, but only three in Arabic: عمر. ع 70 + م 40 + ر 200 = 310. The vowels do not appear as separate letters, and the first sound is not an alif but the letter ʿayn (ع). That is exactly where the first mistake comes from.

The 9 Most Common Mistakes

1. Converting Latin letters one by one

The most frequent mistake is to write the name in Latin letters and give each letter an Arabic equivalent. For Khalil:

• Wrong: K-H-A-L-I-L → ك 20 + ه 5 + ا 1 + ل 30 + ي 10 + ل 30 = 96
• Right: خليل → خ 600 + ل 30 + ي 10 + ل 30 = 670

Two things went wrong: "kh" is a single Arabic letter, khāʾ (خ), worth 600, and the first "a" is not written as a separate letter. Choosing one letter wrongly can change the total roughly sevenfold.

2. Mixing up different spellings of the same name

Some names are written in more than one way, and each spelling gives a different total:

• Yasin: يس → ي 10 + س 60 = 70 · ياسين → ي 10 + ا 1 + س 60 + ي 10 + ن 50 = 131
• Mustafa: مصطفى → م 40 + ص 90 + ط 9 + ف 80 + ى 10 = 229 · مصطفا → … + ا 1 = 220

The mistake is not that several spellings exist, but not knowing which one you used. Our reports work from the established Arabic/Ottoman spelling of the name: for Mustafa, مصطفى with the final alif maqsura (ى); for Yasin, our name table uses يس, the way the opening letters of the sura are written in the Qur'an. Note which spelling you chose in your own calculation, or you will end up comparing results that were never measuring the same thing.

3. Counting ta marbuta (ة) as ta (ت)

Many women's names end in ة. The common convention in the tradition, and the rule this site applies, is to count it like hāʾ (ه) as 5; Ottoman spelling usually wrote it with ه anyway.

• Wrong: Khadija خديجة with ة = 400: 600 + 4 + 10 + 3 + 400 = 1017
• Right: خديجة → خ 600 + د 4 + ي 10 + ج 3 + ة 5 = 622

The gap is 395, and in a star chart calculation it changes the sign. For an Omar whose mother is Khadija, 310 + 622 = 932 leaves a remainder of 8 when divided by 12 (Scorpio); someone who counts ة as 400 gets 310 + 1017 = 1327, remainder 7, and lands on Libra.

4. Counting a doubled (shadda) letter twice

Shadda is a mark showing that a letter is doubled in pronunciation; in writing, the letter still appears once and is counted once.

• Wrong: Muhammad مُحَمَّد with the doubled م counted twice: 40 + 8 + 40 + 40 + 4 = 132
• Right: محمد → م 40 + ح 8 + م 40 + د 4 = 92

Double letters in Latin transcription ("mm", "zz", "ss") invite this mistake; a doubled letter in Latin is often a single Arabic letter with a shadda.

5. Counting the article al- (ال) in one place and dropping it in another

The numerical values of the Divine Names are taken from the name's own letters, without the article "al-". For al-Razzaq:

• Inconsistent: الرزاق → ا 1 + ل 30 + ر 200 + ز 7 + ا 1 + ق 100 = 339
• Common usage: رزاق → ر 200 + ز 7 + ا 1 + ق 100 = 308

In compound names such as Abdullah, on the other hand, ال is an inseparable part of the spelling: عبدالله → ع 70 + ب 2 + د 4 + ا 1 + ل 30 + ل 30 + ه 5 = 142. The real mistake is mixing the rules: calculating one Divine Name with ال and another without it, then comparing the two numbers. Decide which rule you are applying and keep to it throughout.

6. Skipping the letter that carries the hamza

Hamza is usually written on or under a "seat" letter, and it is the seat that gets counted: أ and إ count as alif (1), ؤ as waw (6), ئ as ya (10).

• Wrong: treating the أ of Ahmad as a mere mark: ح 8 + م 40 + د 4 = 52
• Right: أحمد → أ 1 + ح 8 + م 40 + د 4 = 53
• Wrong: dropping the ئ in Aisha عائشة: 70 + 1 + 300 + 5 = 376
• Right: عائشة → ع 70 + ا 1 + ئ 10 + ش 300 + ة 5 = 386

A hamza standing alone on the line without a seat (ء) is given no separate value in this site's name table; Zahra (زهراء) is therefore calculated as 7 + 5 + 200 + 1 = 213.

7. Forgetting the mother's name in the star chart

The Abjad value of a name on its own is one thing; the star chart (yildizname) is another. The star chart sign comes from the total of the person's name and the mother's name. Husayn (Turkish Hüseyin) shows the difference clearly:

• Wrong: حسين alone = 128 → 128 ÷ 12, remainder 8 → Scorpio
• Right: if his mother is Rabia (رابعة = 278): 128 + 278 = 406 → remainder 10 → Capricorn

Two people with the same name can have different star chart signs if their mothers' names differ. Finding the value of your own name and saying "this is my sign" means stopping halfway.

8. Misreading remainder 0

If the total divides evenly by 12, the remainder is 0, and that does not mean "no sign". Remainder 0 corresponds to the twelfth sign, Pisces.

• Example: Selim (سليم = 140), mother Nur (نور = 256): 140 + 256 = 396 = 12 × 33, remainder 0
• Wrong: "No remainder, so it must be Aries", or "the calculation did not work"
• Right: remainder 0 → Pisces (water triplicity)

There is also the opposite slip: taking the quotient (here 33) for the sign number. Only the remainder decides the sign.

9. Trusting online converters blindly

Tools that convert Latin letters to Arabic letters with a fixed table pick a single equivalent for each sound. Yet an "s" may be س, ص or ث; a "z" may be ز, ذ, ض or ظ; an "h" may be ه, ح or خ; a "t" may be ت or ط. The name Osman (Uthman) is a good example:

• Letter-by-letter conversion: O → و, S → س: و 6 + س 60 + م 40 + ا 1 + ن 50 = 157
• Correct spelling: عثمان → ع 70 + ث 500 + م 40 + ا 1 + ن 50 = 661

Two letters were chosen wrongly and the total is off by 504. Before using a tool's result, always compare the Arabic spelling it produces with a reliable source.

Before You Trust a Number: A Checklist

Before you write down an Abjad value or use it in any reading, ask these questions in order:

1. Did I write the name in Arabic script, or did I count Latin letters?
2. Is my spelling the established Arabic/Ottoman spelling? If the name has another spelling, did I note which one I chose?
3. Did I count a final ة as 5?
4. Did I count each shadda letter only once?
5. Did I apply the same rule for ال throughout the calculation?
6. Did I count the seat of every hamza letter such as أ, إ, ؤ, ئ?
7. For the star chart, did I add my mother's name to the total?
8. If dividing by 12 left a remainder of 0, did I read it as Pisces?
9. Did I verify the total by adding it once more in reverse order?

If all nine boxes are ticked, the number in front of you is a reliable starting point.

What Does a Correct Number Open Up?

A correct total opens a door, but it does not show you the room. Different names can share the same total, and thousands of people fall under the same star chart sign. In the tradition, the real reading is done with the letters behind the number: which letters dominate, what picture the name draws together with the mother's name, and how the total relates to the sign and the star. These layers call for far more care and experience than finding the number.

If you are considering a name change, or you are torn between two spellings, weighing the two names side by side is a sounder path than staring at a single number.

This article describes the general calculation rules of the Abjad tradition. It is not a personal verdict, a prediction or a guarantee. Please do not base important decisions in your life on such calculations alone.