ASCII en Décimal Converter
Convertissez du texte ASCII et des caractères en nombres décimaux et séquences d'octets. Délimiteurs personnalisables et analyse étape par étape.
Options & Delimiters▼
Error on non-ASCII characters (>127) instead of fallback conversion.
🔍 Character-by-Character Diagnostics Breakdown
Showing 13 of 13 tokens| # | Character | Decimal | Hex (0x) | Binary (8-bit) | Type | Description |
|---|
Détail Étape par Étape
Standard ASCII Reference Chart (0–127)
Cross-reference characters, decimal numbers, hex notation, and binary forms.
| Character | Decimal | Hex (0x) | Binary | Category | Description | Action |
|---|---|---|---|---|---|---|
| NUL | 0 | 0x00 | 00000000 | Control | Null character | |
| \t (HT) | 9 | 0x09 | 00001001 | Control | Horizontal Tab | |
| \n (LF) | 10 | 0x0A | 00001010 | Control | Line Feed (Newline) | |
| \r (CR) | 13 | 0x0D | 00001101 | Control | Carriage Return | |
| [Space] | 32 | 0x20 | 00100000 | Printable | Standard Space | |
| ! | 33 | 0x21 | 00100001 | Printable | Exclamation mark | |
| 0 | 48 | 0x30 | 00110000 | Digit | Digit Zero | |
| 9 | 57 | 0x39 | 00111001 | Digit | Digit Nine | |
| A | 65 | 0x41 | 01000001 | Uppercase | Latin Capital A | |
| B | 66 | 0x42 | 01000010 | Uppercase | Latin Capital B | |
| Z | 90 | 0x5A | 01011010 | Uppercase | Latin Capital Z | |
| a | 97 | 0x61 | 01100001 | Lowercase | Latin Small a | |
| z | 122 | 0x7A | 01111010 | Lowercase | Latin Small z | |
| ~ | 126 | 0x7E | 01111110 | Printable | Tilde | |
| DEL | 127 | 0x7F | 01111111 | Control | Delete character |
Outils de Conversion Associés
Convert raw binary bitstreams into Decimal, Hexadecimal nibbles, and Octal UNIX permissions with step-by-step proofs.
Calculateur de Fractions
Add, subtract, multiply, divide & simplify fractions
Fraction en Décimal
Convert fractions & mixed numbers to exact decimals & repeating cycles
Décimal en Fraction
Mixed & improper fractions with GCD steps
Hexadécimal en Décimal
Convert Base-16 (0x) to Base-10 decimals with power expansion
Décimal en Hexadécimal
Base-16 hex with byte spacing & RGB preview
Binaire en Décimal
Convert base-2 bits to base-10 decimal & fractions
Binaire en Hexadécimal
Convert 4-bit nibbles to Base-16 hexadecimal (0x)
Binaire en Octal
Convert 3-bit triplets to Base-8 octal & UNIX permissions
ASCII en Binaire
Convert ASCII text and Unicode characters to 8-bit binary bits
Décimal en ASCII
Convert decimal codes & byte arrays to ASCII text
Décimal en Binaire
Base-2 bits & IEEE-754 32-bit float inspection
Décimal en Pourcentage
Percentage, basis points (bps) & gauge
Décimal en Pouces
1/16″ to 1/64″ fractional inches & metric ruler
Décimal en Minutes
HH:MM:SS timecodes & payroll work logs
Questions Fréquentes (FAQ)
Find answers to common questions about converting ASCII text to decimal numbers.
01How do you convert ASCII text into decimal numbers?▼
To convert ASCII text into decimal numbers, each character is looked up in the standard ASCII table to find its corresponding 7-bit or 8-bit integer code. For example, in the word 'Hi', the uppercase letter 'H' has an ASCII decimal value of 72, and the lowercase letter 'i' has an ASCII decimal value of 105. The resulting decimal representation is 72 105.
02What output delimiter formats can I choose?▼
You can format your decimal output using standard Space (72 105), Comma (72,105), Comma + Space (72, 105), Line Breaks, Semicolons, HTML Entities (Hi), Programming Array format ([72, 105]), continuous digits (no delimiter), or a custom user-defined delimiter.
03How does UTF-8 multi-byte encoding differ from Unicode code points?▼
Standard ASCII characters (0–127) have identical decimal values in ASCII, UTF-8, and Unicode. However, non-ASCII characters like '€' or accented letters occupy multiple bytes in UTF-8: UTF-8 Bytes Mode outputs 3 separate decimal bytes (226 130 172), whereas Unicode Code Points Mode outputs the single code point integer (8364).
04Can I convert large text files or binary payloads?▼
Yes. You can upload .txt files directly into the converter, copy the decimal stream with one click, or export the resulting decimal values as a downloadable file without sending any data over the network.
05How do I reverse decimal numbers back into ASCII text?▼
You can click the Swap (⇄) button in the converter card to instantly toggle into Decimal to ASCII mode, or visit our companion converter to decode decimal byte codes back into readable text.