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Number Base Converter

Convert an integer between bases 2 through 36. Up to 1,000 input digits.

Free to useNo sign-upRuns in your browser
Enter your details

Enter the inputs, then select Convert integer base.

Your result
Enter your details

Result will appear here

How Number Base Converter works

Convert an integer between bases 2 through 36.

Up to 1,000 input digits. Digits are 0–9 and A–Z, case insensitive. Optional leading minus; no fractions or 0x prefixes. Exact integer conversion.

Concept diagram for Number Base Converter, showing signed integer input and the supported output.
Concept diagram; the three operation images are actual browser captures.

How to use Number Base Converter

Follow the labelled inputs.

Enter signed integer

Replace the example with signed integer. The field labels specify the expected format and units.

Convert integer base
Input and settings
Number Base Converter: input and settings in the implemented browser tool
Actual local browser view. Open the image to read it at full size.

Check the remaining inputs

Set source base, target base. Up to 1,000 input digits.

Convert integer base
Tool result
Number Base Converter: tool result in the implemented browser tool
Actual local browser view. Open the image to read it at full size.

Run, review and save

Select Convert integer base. Review the calculated result, then copy it or download the result text.

Convert integer base
Review the details
Number Base Converter: review the details in the implemented browser tool
Actual local browser view. Open the image to read it at full size.

Examples and uses for Number Base Converter

Check the supplied example

The starting example produces FF. Convert an integer between bases 2 through 36.

Convert integer base
Abstract input values and a mathematical worksheet.
Start with the values. Concept illustration.

Use your own inputs

Read the labels for signed integer and source base, target base. Up to 1,000 input digits.

Convert integer base
Two calculation examples shown for comparison.
Compare a second example. Concept illustration.

Record a reviewed result

Copy the calculated result into your notes. Keep the formula and assumptions with it if someone else needs to reproduce the calculation.

Convert integer base
A calculation and supporting explanation represented conceptually.
Explain the calculation. Concept illustration.

How to read the result

Read the units and assumptions with the output.

Convert an integer between bases 2 through 36.

Up to 1,000 input digits. Digits are 0–9 and A–Z, case insensitive. Optional leading minus; no fractions or 0x prefixes. Exact integer conversion.

Convert integer baseConvert integer base
A mathematical result connected to the values used to calculate it.
Read the result with its inputs. Concept illustration.

Supported input and limits

Check the stated scope before you run it.

Up to 1,000 input digits. Digits are 0–9 and A–Z, case insensitive. Optional leading minus; no fractions or 0x prefixes. Exact integer conversion.

The input stays in this browser. Copy result and Download save the same displayed text.

Convert integer baseConvert integer base
Values and units reviewed before relying on a mathematical result.
Check values and units. Concept illustration.

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Number Base Converter: common questions

Answers about using Number Base Converter and understanding its results.

Which inputs does this tool accept?

Up to 1,000 input digits. Digits are 0–9 and A–Z, case insensitive. Optional leading minus; no fractions or 0x prefixes. Exact integer conversion.

Can I copy or download the result?

Yes. Copy result copies the displayed text, and Download saves the same result as a text file. Calculations run in your browser without an account.

Convert integer base with your input

Check the calculated result, then copy or download it.

Convert integer base