dCode is free and its tools are a valuable help in games, puzzles and problems to solve every day! You have a problem, an idea for a project, a specific need and dCode can not (yet) help you? You need custom development? Contact-me!

Tool to find the sum of all digits of a number. The digit sum of a number is often used in numerology and sometimes in math problems.

Answers to Questions

How to calculate the sum of digits in a number?

dCode performs an easy but fast addition

Example: 123 => 1+2+3 = 6

One should speak of the sum of the digits of a number (the expressions such as the sum of a digit, or the sum of a number are meaningless)

How to calculate a digital root?

The digital root is computed through recursive reduction (repeated sum) that consists in repeating the addition operation until the result has only one digit.

Example: 789 => 7+8+9 = 24 => 2+4 = 6

What is the difference between a number and a digit?

A number is made of digits, like a word is made of letters.

Example: There are only 10 digits: 0,1,2,3,4,5,6,7,8,9 (in base 10)

Example: There is an infinity of numbers

Numbers can have only one digit such as 1, 2 ou 3 (they are both numbers and digits)

Ask a new question

Source code

dCode retains ownership of the source code of the script Sum of Digits online. Except explicit open source licence (indicated Creative Commons / free), any algorithm, applet, snippet, software (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any function (convert, solve, decrypt, encrypt, decipher, cipher, decode, code, translate) written in any informatic langauge (PHP, Java, C#, Python, Javascript, Matlab, etc.) which dCode owns rights will not be given for free. So if you need to download the online Sum of Digits script for offline use, check contact page !