Developer Tools
Binary Converter
Convert between decimal and binary numbers.
Enter the values and review the result.
Calculation assumptions
- *Decimal to binary accepts whole-number digits only.
- *Binary to decimal accepts 0 and 1, with spaces allowed for grouping.
- *Very large values may hit JavaScript number precision limits.
- *This tool converts numbers, not arbitrary binary files.
Enter a value to convert.
Converted output will appear here.
How binary conversion works
Binary is a base-2 number system using only 0 and 1. Decimal is base-10, the number system used in everyday arithmetic.
Example: decimal 10 converts to binary 1010. Binary 1010 converts back to decimal 10.
Common mistakes
- Typing digits other than 0 or 1 for binary input.
- Using decimal points or negative numbers when this tool expects whole numbers.
- Expecting binary text/file decoding instead of numeric conversion.
- Using extremely large numbers without considering JavaScript precision limits.
Transparency note
Accuracy and limitations
Calzivo tools are built for practical estimates, conversions, and checks. Some tools use standard formulas or simplified assumptions, and results can be affected by input accuracy, rounding, units, local rules, or changing official requirements.
Results depend on the values you enter and any simplified assumptions used by the tool. Verify important results before making decisions or submitting official information.
How to Use This Tool
Use these steps to enter the right inputs and interpret the result correctly.
Enter the value you want to convert.
Select the conversion direction (Decimal to Binary or vice-versa).
The result will be displayed instantly.
Related Tools
Other helpful tools in the Developer Tools category.
Binary to Hex Converter
Convert binary numbers to hexadecimal with 4-bit grouping, conversion steps, examples, and a binary-to-hex chart.
Hex to Binary Converter
Convert hexadecimal to binary numbers.
Decimal to Hex Converter
Convert decimal numbers to hexadecimal.
Hex to Decimal Converter
Convert hexadecimal to decimal numbers.
Hex to RGB Converter
Convert hex color codes to RGB values.
Related Guides
Background reading and explanations related to Binary Converter.
Frequently Asked Questions
Common questions about Binary Converter and how to read the result.
What is the maximum value?
The calculator can handle large numbers, but standard JavaScript limits apply to precision for extremely large values.
Can binary input include spaces?
Yes. Spaces are removed so you can group binary digits for readability.
Can I convert binary text?
No. This tool converts numeric binary values, not binary-encoded text or files.
Can decimal input include decimals?
No. Decimal input should be a whole number.
Why was my binary rejected?
Binary input can only contain 0 and 1, aside from optional spaces.
Is binary the same as Base64?
No. Binary is base-2 numeric notation, while Base64 is a text encoding format.