Binary Converter
Convert between binary and decimal (and other bases).
Input Data
Mode
Value
Results
Converted value.
0
Explanatory note about the result.
請輸入二進制（僅 0/1）。
At a glance:Binary digits are powers of 2; decimal = Σ d_i × 2^i. Complements base-converter and ascii.
Formula
decimal = Σ d_i × 2^i.
How to Use
- Pick a mode and enter a value.
- The tool returns the conversion.
Case Studies
1011₂ → 11
8+0+2+1 = 11.
FAQ
Why base 2?
It is the native representation of digital computers.
Related Tools
References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.