Decimal converter

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About the Decimal Converter

The Decimal Converter translates numbers between decimal, binary, octal, hexadecimal and other bases. It is useful for low-level debugging and for teaching how positional notation works.

How to use it

Enter a number in any supported base.
The tool updates all other representations instantly.
Copy the value you need.

When to use it

Reading memory addresses in a debugger.
Generating test fixtures.
Color values in older design systems.

Numbers hide in many bases. The Decimal Converter translates a value between decimal, binary, octal, hexadecimal and other bases in real time,give you every representation of the same number at once. That is invaluable when you are debugging low-level code, reading a memory address, or explaining how positional notation works to someone new.

Because all conversions update the instant you enter a number, you can flip between representations without a calculator instead of looking each one up manually.

How to Convert a Number Between Bases

Enter a number in any supported base.
The tool instantly updates all other representations of the same value.
Copy the representation you need for your code, notes or design system.

Practical Use Cases

Read a hexadecimal memory address while debugging, write binary literals for a low-level experiment, machine-generate test fixtures that need exact values in several bases, and teach students how base-two, base-eight and base-sixteen notation relate toeach other. It is a frequent companion for anyone working close to the hardware.

Decimal converter — common questions

Which bases does the converter support?

It translates between decimal, binary, octal, hexadecimal and other common bases, showing every equivalent representation of the number you entered at once.

Why are binary and hexadecimal so common in computing?

Computers store values as bits(base-two**, and hexadecimal(base-sixteen** packs four bits per digit, making it compact for humans to read memory dumps, addresses and machine-level output.

Does the conversion work the other way, say from hex to decimal?

Yes. Enter a value in any supported base and the tool returns the same number in every other representation, so converting from hex to decimal to binary is just a matter of what you type.