Binary to Decimal
Your data never leaves your browserConvert binary numbers (base-2) to decimal (base-10).
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About Binary to Decimal
Paste one or more binary numbers (one per line) and instantly get their decimal equivalents. Supports unsigned integers. Useful for understanding low-level data, bitwise operations, and computer science coursework.
How to use
- Enter one binary number per line in the input panel.
- The decimal equivalent appears instantly in the output panel.
- Click Copy to copy the results to your clipboard.
More Number / Base Conversion
Frequently Asked Questions
FAQs about Binary to Decimal
What is binary?
Binary is a base-2 number system using only 0 and 1. It is the fundamental language of computers, representing all data as sequences of bits.
How do I convert binary to decimal?
Each binary digit represents a power of 2. Multiply each digit by its corresponding power of 2 (starting from the right at 2^0) and sum all results.
Does this tool handle leading zeros?
Yes. Leading zeros are ignored in binary-to-decimal conversion, just as they are in decimal numbers.
What is the maximum binary number supported?
This tool uses JavaScript's Number type, which supports exact integers up to 2^53 - 1. For very long binary strings, precision may be lost.
Can I convert multiple numbers at once?
Yes. Enter one binary number per line and the tool will convert each one individually.