Convert letters to numbers in various formats. Numbering the letters so A=1, B=2, etc is one of the simplest ways of converting them to numbers. This is called the A1Z26 cipher. However, there are more options such as ASCII codes and tap codes to decode numbers. This translation tool will help you easily convert between letters and numbers.
Need to translate in the other direction? Use the Numbers to Letters Converter instead.
Convert Letters To Numbers
Letter numbers are used frequently in geocaching mystery caches (puzzle caches), CTFs and puzzle games.
See also: Code-Breaking overview | A1z26 | Ascii table | Barcode | Base64 decoder | Base64 encoder | Baudot code | Book cipher | Geek code | Numbers to letters | Pixel values extractor | Qr codes | Tap code | Unicode | Utf-8 decoder | Utf-8 encoder