8 Best Free Online Letters to Numbers Converter Websites

Here is a list of the best free online letters to numbers Converter websites. Letters to numbers conversion generally refer to alphanumeric conversion where numerical values are assigned to the alphabet. This type of conversion is commonly used in cryptography, data manipulation, etc. There are several mapping schemes for this conversion. The most common one is A1Z26 which assigns a value to each letter based on its position (A=1, B=2, …, Z=26).

This post covers 8 websites that offer letters to number converters. These converters can help you instantly convert a string of text into numerical values. All these converters use the A1Z26 mapping scheme whereas some also support additional schemes such as A0Z25, ASCII, etc. The same goes for the Alphabet types. Some converters work with Roman alphabets whereas some support other languages as well. With that said, let’s go through the post and explore these alphanumeric converters in detail.

My Favorite Online Letters to Numbers Converter

InkPx.com is my favorite website on this list to convert letters to numbers. This converter supports multiple languages and mapping schemes. It also has a custom alphabet option that lets you manually map the desired alphabet with additional text options.

You can check out our other lists of the best free Vigenere Cipher Online Services, Online NATO Phonetic Alphabet Translator Websites, and Online Calligraphy Text Generator Websites.

Comparison Table:

Name	Alphabet/Language	No. of Codes	Text Options
InkPx.com	Multilanguage	2	✓
Boxentriq.com	Multilanguage	6	x
CacheSleuth.com	English	x	✓
Cryptii.com	Multilanguage	x	x
dCode.fr	Multilanguage	Customizations	✓
LingoJam.com	English	x	x
TheTechKnowledge.com	English	x	x
MadeInText.com	English	x	x

InkPx.com

InkPx.com is a free online word art generator website. This website provides a variety of online tools to create various types of word art and text stylings. Among many other tools, the website offers an “Alphabet to numbers” converter. This tool lets you encode the alphabets of various languages into numeric values. It works with English, German, French, Italian, Portuguese, Spanish, and Sweden. It also has the option to configure custom alphabets. This option lets you provide your own alphabets that you can map to the numbers. This way, you can configure this tool for alphabets beyond the supported languages.

This tool offers many text options as well. These options let you choose the separator between the characters, code for space character, text padding, and the option to make the number results backward. As per your requirements, you can configure these options or leave them as they are.

How to convert letters to numbers online using InkPx.com?

Head over to this “Alphabets to numbers” tool using the link given below.
Set the Code type and Alphabet type of your choice and configure other text options as per your needs.
Then enter the text into the box at the top.
Once done, copy the coded numbers from the box at the bottom.

Highlights:

Supported Alphabet: English, German, French, Italian, Portuguese, Spanish, and Sweden.
Custom Alphabets: Yes, you can map your own alphabet.
Supported Mapping Codes: A1Z26 and A0Z25.
Text Options: Separator, Code for space separator, Padding, and Reverse.

Home Page

Boxentriq.com

Boxentriq.com is a collection of free online tools and resources to help solve CTFs, ciphers, logic puzzles, and room escape games. This website has a “Letters To Numbers Converter” that you can use to cipher the alphabet of multiple languages into numbers. It supports English, German, French, Italian, Portuguese, Spanish, and Sweden. It also has a custom language option where you can add your own alphabet for mapping. This tool works with 6 code types covering A1Z26, A0Z25, ASCII, Hex ASCII, Binary ASCII, and Tap Code/ Knock Code. You can pick a code type of choice and encode letters to numbers.

How to convert letters to numbers online using Boxentriq.com?

Go to this “Letters To Numbers Converter” tool by following the direct link given below.
Scroll down and select the code type and language of choice from the available options.
Then enter your letters into the box at the top and copy the numeric output from the box at the bottom.

Highlights:

Supported Alphabet: English, German, French, Italian, Portuguese, Spanish, and Sweden.
Custom Alphabets: Yes, you can map your own alphabet.
Supported Mapping Codes: A1Z26, A0Z25, ASCII, Hex ASCII, Binary ASCII, and Tap Code/ Knock Code.
Text Options: No additional text options.

Home Page

CacheSleuth.com

CacheSleuth.com is a free website that offers online tools and resources for geocaching and code-solving puzzles. You can use their “Letters to Numbers Conversion” tool to convert letters to numbers. This tool works with English/Roman alphabets and uses the A1Z26 mapping code. There is no option to change language and mapping code. However, you do get many text options though. You get an option to remove spaces from the text, you can toggle for letters only, set the text to be in reverse, restrict to upper or lower case, replace text, and set the number of characters you want to group together in the output. With all that, you can convert letters to numbers using this free tool.

How to convert letters to numbers online using CacheSleuth.com?

Open this “Letters to Numbers Conversion” tool on CacheSleuth using the link mentioned below.
Type the alphabets that you want to convert to the number. You can expand and customize Text Options if you want.
Then click the Encrypt button to get the converted output in numbers.

Highlights:

Supported Alphabet: English.
Custom Alphabets: No such option.
Supported Mapping Codes: A1Z26.
Text Options: Remove Spaces, Letters Only, Reverse Text, Reverse Words, Upper, Lower, Replace, and Group Characters.

Home Page

Cryptii.com

Cryptii.com is an online platform that offers modular conversion, encoding, and encryption tools. This website has a universal tool on the homepage that supports various ciphers, mapping types, and more. It supports A1Z26 which you can use to convert letters to numbers. The tool comes with a few text options allowing you to define separator and case sensitivity. Along with that, you can also map additional letters to create a custom alphabet type. This way, you can configure the converter and easily perform letters to numbers conversions online.

How to convert letters to numbers online using Cryptii.com?

Follow the direct link given below to open this tool in your web browser.
Enter your text on the left side section.
Customize the separator, case, and alphabet options as per your requirements.
Then copy the converted text from the section on the right side of the screen.

Highlights:

Supported Alphabet: English/Roman.
Custom Alphabets: Yes, you can map your own alphabet.
Supported Mapping Codes: A1Z26.
Text Options: Separator.

Home Page

dCode.fr

dCode.fr is a website that offers a collection of over 800 tools to help solve games, riddles, ciphers, mathematics, puzzles, and more. This website has a “Letter Number Code” tool that can convert letters to numbers and vice versa. It features both converters on the same page. For letters to numbers, you have to use the “Letter to Number A1Z26 Encoder”. By default, this converter uses the A1Z26 code mapping but you can configure it as per your liking. You can also configure alphabets, starting alphabet, separator, code for “space” character, etc. With the help of all these options, you can configure the converter quite precisely and perform your conversions.

How to convert letters to numbers online using dCode.fr?

Go to this “Letter Number Code” tool on dCode using the link given below.
Scroll down to the “Letter to Number A1Z26 Encoder” and configure the encoding options if needed.
Then type your letters into the box and click the ENCRYPT button to perform the conversion.
Doing this gets you the result on the left side pane on the screen.

Highlights:

Supported Alphabet: English/Roman.
Custom Alphabets: Yes, you can map your own alphabet.
Supported Mapping Codes: A1Z26, A0Z25, or any user-configured values.
Text Options: Separator.

Home Page

LingoJam.com

LingoJam.com is an online platform that offers various text conversion tools. This website has a simple Alphabet to Numbers converter tool to translate characters of the alphabet into a simple number cipher. This tool uses the A1Z26 mapping type and does not have any configuration options. You can directly add your letters to the tool. When you do that, it instantly ciphers those letters into respective numbers and shows the entire string on the screen.

How to convert letters to numbers online using LingoJam.com?

Go to the LingoJam website using the link given below to access this cipher converter.
Enter your letters in the box on the left.
This gets you the ciphered numbers in the box on the right.

Highlights:

Supported Alphabet: English/Roman.
Custom Alphabets: Not supported.
Supported Mapping Codes: A1Z26.
Text Options: No additional options.

Home Page

TheTechKnowledge.com

TheTechKnowledge.com offers online calculators, converters, and other tools. This website features a “Letters to Numbers Converter” where you can convert alphabets to numbers. This tool is configured for Roman alphabets and uses the A1Z26 mapping type. The tool has a simple input section where you add the letters that you want to convert. Then you can simply run the tool to get the output. This converter groups the numbers as per the original word. For example, if a word has 5 letters, it groups the respective numbers of those 5 letters together.

How to convert letters to numbers online using TheTechKnowledge.com?

Launch this “Letters to Numbers Converter” in your browser by clicking on the link given below.
Add your letters into the “Input” box and click the Convert button.
This shows you the cipher numbers for your input.

Highlights:

Supported Alphabet: English/Roman.
Custom Alphabets: Not supported.
Supported Mapping Codes: A1Z26.
Text Options: No additional options.

Home Page

MadeInText.com

MadeInText.com provides a collection of free online text tools and text generators to make beautiful fancy text, convert, make, count, edit, and many helpful tools. The website has a “Letters to Numbers” tool that you can use to convert letters into numbers using the A1Z26 cipher type. The tool is simple with two boxes on the screen. You have to type your letters in the box at the top and run the tool to get the converted numbers in the box at the bottom. This tool is reversible as well. Within a click, you can switch the tool to perform the “Numbers to Letters” conversion.

How to convert letters to numbers online using MadeInText.com?

Use the link given below to open this tool. Make sure the “Letters to Numbers” tool is selected.
Enter your letters into the top box and click the Convert Letters to Numbers button.
After that, copy the converted numbers from the bottom box.

Highlights:

Supported Alphabet: English/Roman.
Custom Alphabets: Not supported.
Supported Mapping Codes: A1Z26.
Text Options: No additional options.

Home Page

Frequently Asked Questions

How do you convert letters into numbers?

To convert letters into numbers, assign a numeric value to each letter based on a chosen scheme, such as ASCII or A1Z26 cipher, where 'A' might correspond to 1, 'B' to 2, and so on. Then, apply this mapping consistently to the letters in the text you want to convert.

What is ABCD in numbers?

Different mapping schemes can result in different numeric values for the same letters. For a simple mapping where 'A' corresponds to 1, 'B' to 2, 'C' to 3, and 'D' to 4, then "ABCD" would be represented as "1234."

What number is letter O?

In the ASCII encoding scheme, the letter 'O' corresponds to the decimal number 79. And as per A1Z26 scheme, the letter 'O' corresponds to the number 15.

How do I convert alphabets to numbers in R?

In R, you can convert alphabets to numbers by subtracting the ASCII value of 'A' and adding 1, or by creating a custom mapping of letters to numbers using vectors or data frames.

What is 5 as a letter?

If you're looking for the letter that corresponds to the number 5 in the A1Z26 scheme, it would be 'E'. However, the A1Z26 scheme is typically used for encoding letters as numbers, not the other way around.

What is the origin of roman alphabets?

The Roman alphabet, originating from the Etruscan civilization in ancient Italy, was adapted by the Romans and modified to suit their language.

Who invented alphabet A to Z?

The development of the alphabet from A to Z was a gradual process involving multiple cultures and time periods, with no single individual credited for its invention.

What are the 4 types of alphabets?

The four main types of alphabets are Latin (Roman), Cyrillic, Arabic, and Devanagari. These alphabets are distinct writing systems used for various languages and regions.

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