Hex to Decimal
A hexadecimal value read straight back as a decimal number.
FREE - NO SIGN-UP - RUNS ON YOUR DEVICE
Hex values never leave your browser
- Hex → Decand two more bases
- Liveno button to press
- 0values uploaded
- Freeno sign-up
What you can count on
- 1setting
- The input base, set to hexadecimal
- Everything else follows from it
- 4readings
- Decimal arrives with binary and octal
- One entry drives all of them
- 0uploads
- The value is read in your tab
- Nothing is sent or stored
Hex to Decimal at a glance
- Input base
- Hexadecimal
- Accepted values
- Whole values, zero or above
- Output
- Decimal, binary and octal
- Reverse
- Decimal in, hexadecimal out
- Processing
- Runs locally in your browser
- Bases and size
- Base 2/8/10/16, any length
- Price
- Free
- Account required
- No
How to use Hex to Decimal
- 1
Set the base to hex
Choose hexadecimal as the input base so A to F count as digits rather than mistakes.
- 2
Enter the value
Type or paste a whole value of zero or above. The readings recalculate as it lands.
- 3
Read the decimal
The decimal line is filled in below. Copy result saves all four readings together.
Frequently asked questions
Do I get binary and octal as well?
Yes. The four readings share a single entry, so binary and octal are on screen the moment the decimal one is.
What values can I enter?
Whole values of zero or above. A sign or a fractional part is outside what the panel is set up to read.
Is the value sent anywhere?
No. Reading a base is arithmetic the browser handles by itself, so the value stays in the tab and is not stored.
How do I get hexadecimal from a decimal number?
Change the input base to decimal and type the number. The hexadecimal line then holds the answer, with no other setting to change.
Can I paste a value that starts with 0x?
Yes. A leading 0x is stripped before the digits are read, so pasting 0xFF straight from code works without editing it first.
What a hexadecimal reading means
Hexadecimal digits run from 0 to 9 and then A to F. Choose hexadecimal as the input base, enter a whole value, and the decimal reading is already filled in below.
- Hexadecimal and decimal are two ways of writing the same value, not two different numbers.
- The input base is what tells the panel how to read the characters you typed.
- Because all four lines share one entry, comparing bases takes no extra step.
- The panel takes whole values, so anything after a point has no meaning here.
Full specification
| Input base | Hexadecimal, so digits from zero to nine and A to F are read as one value. |
|---|---|
| Accepted values | Whole values of zero or above. Signs and fractional parts are outside what the panel reads. |
| Output | The decimal reading, shown at the same time as the binary and octal ones. |
| Reverse | Set the input base to decimal and the hexadecimal line becomes the answer instead. |
| Processing | All calculations run locally in the current browser tab. |
| Bases and size | Input base is 2, 8, 10 or 16 — no base 32 or 36. Whole numbers of any length stay exact, past the 53-bit limit. |
| Price | Free |
| Account required | No |
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