Text to Decimal Converter (ASCII Codes)

By Suraj GiriUpdated 24 September 2026

This converter works on code values, one at a time, from the table. Codes are not capped, so values above 127 are accepted. For whole text rather than single codes, use Text to Binary; for codes capped to 0 to 127, use Text to ASCII.

Going the other way? Convert decimal back to text →

How do you convert text to decimal?

Text to decimal conversion replaces each character with its Unicode code point written in decimal; 0 to 127 match the ASCII table, and every other character has a larger number.

1. Take the first character and find its code point in the table: H is 72.
2. Write the code as a plain decimal number, with no leading zeros.
3. Repeat for every character, spaces included, and separate the codes with a single space: Hi = 72 105.

Text to Decimal Conversion Table

The codes this page works through, each with the character it stands for and the same value in hex, octal and binary. Find the code in the first column and read across; the row is the whole conversion. Codes 0 to 31 and 127 have no glyph, so the Char column shows their short name instead. This page writes one unpadded decimal code point per character, single space between codes. This page shows the rows you need; ASCII code chart (decimal, hex, octal, binary) carries all 128.

The base this page writes, defined by the digits it uses, how a value is marked, and what each position is worth.

Worked Example: Hi to Decimal

One code value, taken from the table and written out in full. This is the same working the converter shows when you turn on "show steps".

Take the first character, H. Its row in the ASCII table is 72, which is also its Unicode code point. Decimal codes are written as they are, with no padding: 72.

Every other character is looked up the same way: i is 105. The codes are joined in the order the characters were typed, one space apart. A character past the table still has a number: é is 233, its Unicode code point.

Check it in reverse

Read it back and you arrive where you started: code 72 is the letter H. The table is a two-way lookup, not a calculation, so no rounding or padding can change the answer. To verify the result by hand, convert the decimal codes back to characters and compare it with the value you started from.

Worked examples: text to decimal

Each example gives the value first, then the working. Click a value to load it in the converter.

Every example above reverses exactly — read the same code values back as characters.

What Changes the Code Output?

Values above 127

Values above 127 are accepted here as Unicode code points, because this converter is not capped to ASCII: 233 is é and 8364 is €. The codes ASCII itself defines are listed in the ASCII table.

Which base the code is written in

The same code can be written in decimal, hex, octal or binary: 65, 41, 101 and 01000001 are all the letter A. This page writes decimal only, so a code in another base names a different row.

Control codes and printable codes

Codes 32 to 126 are printable characters; 0–31 and 127 are control codes. A control code has no glyph, so the table shows its short name instead — 10 is LF, 13 is CR. Converting one is valid; displaying one is not.

One code or a list

Several codes separated by spaces, commas or new lines convert as a list, in order, and each keeps its own row. The separator is a display choice and does not change any value.

Text to Decimal in Code

The same rule in one line. Both take a string and return one decimal code per character.

Python: ' '.join(str(ord(c)) for c in s)

JavaScript: [...s].map(c => c.codePointAt(0)).join(' ')

Common Mistakes

• Typing a code instead of text. Here 72 is read as the characters 7 and 2, codes 55 and 50, not as code 72. For codes capped at 0–127, use convert text to ASCII code.
• Reading a code in the wrong base. 41 is A in hex and ) in decimal.
• Pasting UTF-8 byte values where code points belong: 195 169 reads as é, not é. The converter says what the bytes would have spelled.
• Joining decimal codes with no separator. 72105 is one number, not 72 and 105, because decimal codes have no fixed width.

Frequently Asked Questions

Related Conversions

• Text also converts to ASCII codes by the same lookup — convert text to ASCII code.
• Text also converts to binary by the same lookup — turn words into binary code.
• Text also converts to hex by the same lookup — encode a string as hex bytes.
• If your input is hex rather than text, convert a hex value like 0xFF to decimal instead.
• If your input is binary rather than text, binary to decimal with the power-of-2 row instead.
• If your input is binary rather than text, binary to ASCII code lookup (0-127) instead.

The rest of the family sits on back to the binary converter.