## ROT13 Calculator

- Home
- Other Calculators
- ROT13 Calculator

ROT13 encryption is a special case of the Caesar Cipher. The reason it is special is because if it is encoded a second time using the same rotation, you end up with the original message. This is because the alphabet has 26 letters. If you rotate it by 13 spaces, twice, you end up rotating it 26 spaces and thus where it began. To use ROT13 encryption and decryption, enter your text below

**Something didn't work!** Check your inputs, make sure they're all numbers.