Conversions

Instant, private, and free

Decimal to Hexadecimal Converter.

Convert a non-negative integer from base 10 to base 16.

On-device calculationNo signup
01

Set your values

Results update as you type.

Result: 1

Result

1

Use Cases

Programming and Debugging

Quickly convert decimal values to hexadecimal for memory addresses, color codes, or binary data representation in coding projects.

Example: Convert 255 to FF for a CSS color code.

Educational Practice

Verify manual conversions or learn how base-10 numbers relate to base-16 in math or computer science classes.

Example: Check that decimal 4096 equals hex 1000.

Frequently Asked Questions

How do I convert decimal to hexadecimal using this calculator?
Select 'DECIMAL' in the 'Convert from' dropdown and 'HEXADECIMAL' in the 'Convert to' dropdown. Enter your decimal number in the input field, and the calculator will display the hexadecimal equivalent.
Can I convert hexadecimal back to decimal with this tool?
Yes. Set 'Convert from' to 'HEXADECIMAL' and 'Convert to' to 'DECIMAL'. Enter a hexadecimal value (e.g., 1A3F) and the calculator will show its decimal equivalent.
What is the range of numbers I can convert?
The calculator accepts any non-negative integer. There is no upper limit specified, so it can handle very large numbers, though extremely large inputs may be limited by your device's processing power.

Tips & Common Mistakes

Tips

  • Ensure the 'Convert from' and 'Convert to' selections are correct before entering your number to avoid reversed conversions.
  • For hexadecimal input, use digits 0-9 and letters A-F (uppercase or lowercase). The calculator will handle both.
  • If you need to convert a negative number, note that this tool only accepts non-negative integers. Consider using a two's complement method separately.
  • Double-check your decimal input for extra spaces or symbols; only plain digits are accepted.

Common Mistakes to Avoid

  • Selecting the wrong conversion direction, e.g., choosing 'HEXADECIMAL' as 'Convert from' when you intend to convert from decimal.
  • Entering a hexadecimal value with invalid characters like G or Z, which will cause an error.
  • Assuming the output is case-sensitive; hexadecimal letters can be uppercase or lowercase, but the calculator may display a consistent format.

Last updated: August 13, 2026