Convert Hex to a Floating Point Number
Find the floating-point number from its hex representation. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Convert Hex to a Floating Point Number
- 1. Paste the hex bit pattern. Enter the raw IEEE 754 encoding, like 3ff0000000000000, into the input pane. Eight hex digits describe a 32-bit float; sixteen describe a 64-bit double.
- 2. Select the Precision. Leave Precision on Auto (by length) to infer the format from digit count, or force 64-bit (double) or 32-bit (single) when the input is padded or truncated and the guess would be wrong.
- 3. Copy the decoded number. The tool unpacks sign, exponent and mantissa and prints the decimal value, so 3ff0000000000000 reads as 1. Copy it into your notes or comparison script.
When to use Convert Hex to a Floating Point Number
Convert Hex to a Floating Point Number decodes raw IEEE 754 bytes into the value they represent. Memory dumps, wire captures and binary files store floats as opaque hex, and this tool answers the recurring question of what number those eight or sixteen digits actually mean.
- Decoding floats in a memory dump. A crash dump shows 40490fdb at the address of a suspicious variable. Decoding it as a 32-bit float reveals pi, telling you the field held the constant you expected.
- Interpreting Modbus and CAN payloads. Industrial sensors transmit readings as four raw float bytes. Paste the hex from your bus analyzer to read the temperature or pressure without writing a decoder script.
- Verifying test fixture bytes. A unit test hardcodes expected doubles as hex strings. Decode each one to double-check that the fixtures encode the values the test comments claim they do.
- Investigating NaN and infinity patterns. Output is full of 7fc00000 words and you suspect quiet NaNs. Decoding confirms the special value class so you can trace which operation started producing them.
Examples
Double one
Input
3ff0000000000000
Output
1
Single one
Input
3f800000
Output
1
About the Convert Hex to a Floating Point Number tool
Convert Hex to a Floating Point Number does its work locally, right in the browser. Find the floating-point number from its hex representation. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the Hex Tools collection on EditSafely, a set of 108 small, focused Hex utilities that share the same instant, private workspace.
You can shape the output with the Precision setting, and the result refreshes the moment you change it. 2 worked examples further down the page show exactly what the tool produces for real inputs.
Running locally also makes the tool fast and dependable: results appear as you type or drop a file, there is no server outage that can take it down mid-task, and confidential data can be processed without a second thought.
Frequently asked questions
Does Convert Hex to a Floating Point Number cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.