IEEE754 Decoder Calculator
Decode an IEEE-754 bit pattern (hex or binary) into its float value. Enter your values, click Calculate, and get the full result with its breakdown — everything is processed on your device, nothing is sent to a server.
All calculations run in your browser. Your data is never sent to our servers.
Example
Example Input
0x40490FDB (32-bit)
Example Output
3.1415927…
How to Use
- 1Fill in each input field with the values you want to compute.
- 2If there are choices (units, mode, operation), pick what you need.
- 3Click the Calculate button (or press Ctrl+Enter).
- 4The main result and its breakdown appear in the Result area. Click Copy to copy it.
About the IEEE754 Decoder Calculator
The IEEE754 Decoder takes a bit pattern (hex like 0x40490FDB or binary) and computes back the float value it represents, for 32-bit or 64-bit. Useful when reading memory dumps or binary formats.
Its counterpart is the IEEE754 Encoder. Together they help you understand floating-point storage.
FAQ
Is this IEEE754 Decoder Calculator accurate?
Yes. It uses standard formulas and runs directly in your browser at full JavaScript precision (plus BigInt/decimal.js for large numbers where needed).
Is my data sent to a server?
No. All calculations happen entirely on your device. No values are sent to or stored on our servers.