Every computer on Earth thinks in binary — strings of 0s and 1s — while humans stubbornly count in decimal, so translating between the two is the first skill every programming student learns. Each binary digit (bit) represents a power of two: reading right to left, the positions are worth 1, 2, 4, 8, 16, 32, 64, 128, and so on, and you add up the values wherever a 1 appears. That is why 10110110 becomes 182: the 1s sit in the 128, 32, 16, 4, and 2 positions. This converter handles the arithmetic: enter the Number of bits and the binary value, and the Decimal value box returns the answer, while the Max value for n bits readout reminds you that 8 bits top out at 255 (2⁸ − 1) and 16 bits at 65,535. Network engineers meet this daily in subnet masks and IP addresses, Arduino hobbyists meet it in sensor registers, and students meet it on every CS exam. The Bit count box simply echoes your bit length so you can sanity-check what you typed before trusting the decimal result.

With the pre-filled defaults — Number of bits 8, Binary value (decimal input for bits × 2^n) 10,101,010 — the Binary to Decimal returns Decimal value 0, Max value for n bits 255, Bit count 8. Change any input and those results update instantly, so you can see exactly how each number you enter moves the answer.