How to Calculate the Letter Sum A1 Value of Text Online (2026)
Use our free Calculate Letter Sum tool to add up the numeric values of every letter in your text using the standard A=1, B=2 through Z=26 mapping. Choose between total text sum, per-word sums with detailed breakdowns, or custom value mappings. Non-letter characters are ignored by default, but you can toggle whitespace and punctuation handling.
How Letter Sum Calculation Works
Each letter in the alphabet is assigned a numeric value: A=1, B=2, C=3, and so on up to Z=26. Both uppercase and lowercase variants use the same value (a=1, A=1). The letter sum is calculated by adding together the values of every letter in the text. For example, “ABC” sums to 1+2+3 = 6, and “hello” sums to 8+5+12+12+15 = 52. Per-word mode calculates and displays the sum for each word individually, showing the contribution breakdown.
How to Use Our Letter Sum Calculator
- Paste or type text into the Calculate Letter Sum input area.
- Choose the calculation mode: Total Sum (one number for all text) or Per-Word Sum (individual totals).
- Toggle whether to ignore non-letter characters or include spaces and punctuation.
- Optionally enable custom value mapping to assign different values to letters.
- View the instant results and copy them to your clipboard.
Example Letter Sums
| Text | Calculation | Sum |
|---|---|---|
| ABC | 1 + 2 + 3 | 6 |
| hello | 8 + 5 + 12 + 12 + 15 | 52 |
| world | 23 + 15 + 18 + 12 + 4 | 72 |
| hello world | 52 + 72 | 124 |
| Z | 26 | 26 |
Common Use Cases
- Word games — compare the numerical “weight” of different words and phrases for scoring games.
- Numerology — calculate letter sums for names, phrases, and text according to numerical systems.
- Puzzles — create and solve word puzzles where letter values determine answers or clues.
- Educational exercises — teach basic addition and alphabet ordering with concrete letter values.
FAQ
What is the letter sum formula?
Each letter A-Z is assigned a value from 1 to 26 (A=1, B=2, …, Z=26). Uppercase and lowercase letters both use the same mapping (a=1, A=1). The total sum is all letter values added together.
What about accented letters?
Accented letters like é or ü are counted as their base letter (e or u). Non-letter characters are ignored by default.
Can I see the sum for each word individually?
Yes. Switch to per-word sum mode to see each word listed with its individual letter sum and the component values.
Can I use custom letter values?
Yes. The custom value mapping option lets you assign different numeric values to letters for non-standard calculation systems.
What characters are ignored?
By default, spaces, numbers, punctuation, and symbols are ignored. Toggle the settings to include them in the total if needed.
Try our free Calculate Letter Sum tool to find the numerical sum of letters in any text using the A=1 to Z=26 system.