Binary to decimal converter
Convert binary numbers to decimal values.
Open tool →Free online converter category
Number Conversion Tools for Binary, Decimal, Hex, ASCII and Roman Numerals
Browse number conversion tools for binary, decimal, hexadecimal, octal, ASCII, strings, Roman numerals, fractions, percentages, PPM, and scientific notation.
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Popular Number Conversion Tools
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Decimal to binary converter
Convert decimal numbers to binary.
Open tool →Decimal to hex converter
Convert decimal values to hexadecimal.
Open tool →Hex to decimal conversion
Convert hexadecimal values to decimal.
Open tool →ASCII to binary converter
Convert ASCII text to binary.
Open tool →Roman numerals converter
Convert numbers and Roman numerals.
Open tool →Percent to decimal converter
Convert percent values to decimals.
Open tool →Scientific notation converter
Convert values into scientific notation.
Open tool →Common Formulas and References
Use these references as a quick guide. The converter or linked tools calculate the result automatically.
ReferenceBinary to decimal: sum each binary digit multiplied by powers of 2
Referencedecimal = percent ÷ 100
Referenceradians = degrees × π ÷ 180
Number Conversion Tools FAQ
Common questions about this category.
What is number conversion?
Number conversion changes a value from one representation to another, such as binary to decimal or decimal to hexadecimal.
What is binary?
Binary is a base-2 number system using only 0 and 1.
What is hexadecimal?
Hexadecimal is a base-16 system using digits 0-9 and letters A-F.