Decimal to HEX Conversion
Convert between decimal and hexadecimal (HEX)
Features
Supports batch conversion of multiple values
Process values together, separated by spaces, line breaks, or commas
Converts huge integers accurately
Processes large numbers that a calculator cannot handle, without rounding errors
Output format switching
Choose uppercase output and whether to add the 0x prefix
Auto-handles full-width digits and negatives
Full-width input is auto-corrected to half-width, and negative values are converted too
How to use
Select the conversion direction
Use the buttons at the top to choose decimal-to-hex or hex-to-decimal
Enter the value to convert
Type a value in the input field. You can also load an example with the sample button to try it out
Set the output options
For decimal-to-hex, toggle "Output in uppercase" and "Add 0x prefix"
Get the result with the convert button
Press "Convert" to display the result. Use the copy button to use it right away
Use cases
Learning programming
Quickly check your answers for base conversions in class or self-study
Checking color code values
Convert decimal RGB values to hex and apply them to CSS color settings
Analyzing logs and memory values
Grasp hexadecimal error codes and memory addresses in decimal
Checking values in embedded development
Cross-check register settings and sensor output in both hex and decimal
Safety and privacy
Runs entirely in your browser
Your input data is processed only within your browser and is never sent externally.
Processing only in your browser
the conversion processing is processed entirely within your browser, and input data is not sent to any server.
Communications encrypted with HTTPS
Page loading is also encrypted by TLS, and content cannot be read by third parties.
No transmission to third parties
Input content is not sent to external services such as ad networks or trackers.
No automatic saving of results
the conversion results and input suggestions are not stored on the server.