Number Base Converter
Convert base to base quickly with this free online calculator. The page explains the conversion rule, gives practical examples and provides a quick reference table.
Convert base to base using the conversion factor used by this tool.
How to use the Number Base Converter
- Enter the number you want to convert.
- Confirm the source unit shown beside the input.
- Choose decimal precision if you need more or less detail.
- Read the converted result.
- Copy the result when you need to use it elsewhere.
How the conversion works
Convert base to base using the conversion factor used by this tool.
For a simple fixed-factor conversion, the calculator multiplies the entered value by the stated factor. Temperature scales and certain specialized tools use their specific mathematical relationship instead.
Common base to base conversions
| base | base |
|---|---|
| 1 base | 1 base |
| 2 base | 2 base |
| 5 base | 5 base |
| 10 base | 10 base |
| 20 base | 20 base |
| 50 base | 50 base |
Example
For example, entering 1 base gives approximately 1 base using the rule above. Change the input to test your own value.
Frequently asked questions
Accuracy note: This calculator is a practical reference. For regulated, safety-critical or specialized work, verify the result against the applicable standard.
Page reviewed: August 24, 2026.