Binary ↔ Decimal Converter
Convert between binary and decimal instantly.
Amortization schedule
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Showing first 12 of months.
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Introduction
Binary ↔ Decimal Converter — Convert between binary and decimal instantly. Enter Convert, Binary to get an instant, accurate result.
Formula
Binary → decimal: each bit is a power of 2 (bindec). Decimal → binary: repeated division by 2 (decbin).
Step-by-step
- Enter the Convert.
- Enter the Binary.
- Click Calculate to see your result instantly.
Real-world example
Example: With Convert = bin_to_dec, Binary = 1010, the Binary ↔ Decimal Converter gives Decimal: 10.
Frequently Asked Questions
Does this support negative numbers?
Yes, a leading minus sign is handled and preserved in the result.
Is there a size limit?
Limited only by PHP's native integer range on your server.
What inputs does the Binary ↔ Decimal Converter need?
You'll need to provide: Convert, Binary. All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Binary ↔ Decimal Converter?
The Binary ↔ Decimal Converter applies the formula exactly as calculated — Binary → decimal: each bit is a power of 2 (bindec). Decimal → binary: repeated division by 2 (decbin). — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the Binary ↔ Decimal Converter free to use?
Yes, the Binary ↔ Decimal Converter is completely free, requires no signup, and runs instantly in your browser.
About the Binary ↔ Decimal Converter
The Binary ↔ Decimal Converter uses a real, verifiable formula — Binary → decimal: each bit is a power of 2 (bindec). Decimal → binary: repeated division by 2 (decbin). — so results are accurate every time, not an approximation.