Binary to decimal

This converter converts the binary to decimal by default, enters the binary number, then clicks the Convert Now button, and you can also select other base numbers(8 10 16 32 36 58 64) for conversion. Decimal to binary

To base	Conversion result	Description
10
Other conversions:
8
16
26		Lower case letters
32		Does not contain ILOU characters
36		Number + lowercase
52		Uppercase letters + lowercase letters
58		Does not contain 0OlI characters
62		Number + lowercase + uppercase
64

The range of safe integers specified in js is -2^53~2^53, so the number conversion greater than 9007199254740991 may have accuracy problems.

Knowledge of converter

In mathematics and digital electronics, a binary number is a number expressed in the base-2 numeral system or binary numeral system, which uses only two symbols: typically 0 (zero) and 1 (one).

The base-2 numeral system is a positional notation with a radix of 2. Each digit is referred to as a bit. Because of its straightforward implementation in digital electronic circuitry using logic gates, the binary system is used by almost all modern computers and computer-based devices.

How to convert binary to decimal

Example: calculate the decimal value of 100101
binary number 1 0 0 1 0 1
power of 2 2⁵ 2⁴ 2³ 2² 2¹ 2⁰
Result: 100101₂ = 1*2⁵+0*2⁴+0*2³+1*2²+0*2¹+1*2⁰ = 37₁₀
Binary number containing n digits(0 and 1):
d_n-1 ... d₃ d₂ d₁ d₀
decimal = d_n-1×2^n-1 + ... d₂×2² + d₁×2¹ + d₀×2⁰

binary number	1	0	0	1	0	1
power of 2	2⁵	2⁴	2³	2²	2¹	2⁰

Binary to decimal conversion table

Binary Number	Decimal Number
0	0
1	1
10	2
11	3
100	4
101	5
110	6
111	7
1000	8
1001	9
1010	10
1011	11
1100	12
1101	13
1110	14
1111	15
10000	16
10001	17
10010	18
10011	19
10100	20
10101	21
10110	22
10111	23
11000	24
11001	25
11010	26
11011	27
11100	28
11101	29
11110	30
11111	31
100000	32
1000000	64
10000000	128
100000000	256

ASCII to binary converter ASCII to hex converter Binary to ASCII converter Binary,octal,decimal,hex converter Binary to octal Binary to decimal converter Binary to hex converter Binary to base 32 Binary to base 36 Binary to base 64 Date to roman numerals converter Decimal to fraction converter Decimal to percent converter Decimal to binary converter Decimal to octal converter Decimal to hex converter Degrees to degrees,minutes,seconds converter Degrees,minutes, seconds to degrees converter Degrees to radians converter Fraction to decimal converter Fraction to percent converter Hex to ASCII converter Hex to binary converter Hex to decimal converter Octal to decimal converter Octal to binary converter Percent to decimal converter Percent to fraction converter Percent to ppm converter ppm to percent converter ppm to ppb converter ppm to ppt converter ppb to ppm converter ppt to ppm converter Radians to degrees converter Roman numeral to decimal