Time & Data
Number Base Converter
Convert numbers between binary, octal, decimal, and hex.
About Number Base Converter
Number Base Converter changes values between binary, octal, decimal, and hexadecimal for debugging flags, protocol fields, and low-level examples.
Common uses
- Convert a hex color-like value to decimal.
- Inspect bit patterns in binary.
- Prepare examples for documentation about numeric representations.
Good to know
The converter is for integer values. Check sign, width, and overflow behavior in your programming language when working with fixed-size types.
How to compare bases
Use base conversion to inspect bit flags, protocol fields, color-like values, or documentation examples. Seeing binary, decimal, and hexadecimal together helps catch copy mistakes.
Integer assumptions
This converter is meant for integer values. Programming languages may apply fixed-width limits, signed interpretation, or overflow behavior after conversion.
Common mistakes
Prefixes such as 0x for hex and 0b for binary are helpful for humans, but not every parser accepts them. Match the notation expected by the receiving system.
Before you rely on the output
- Confirm timezone, unit, precision, and source-system expectations before using converted values for scheduling, billing, legal, or operational deadlines.
- Privacy mode: inputs are processed locally in your browser and are not intentionally sent to an application server.
Related tools
Byte Size Converter, Cron Builder, Cron Explainer, Timezone Converter