Integer Base Converter

• Converts between binary (base 2), octal (8), decimal (10), and hex (16)
• Supports any base from 2 to 64 for specialized use cases
• Auto-detects 0x (hex), 0b (binary), and 0o (octal) prefixes
• Handles negative numbers and shows conversion steps
• Hex uses 0–9 and A–F: decimal 255 = hex FF = binary 11111111

Use Cases

Frequently Asked Questions

How to convert binary to decimal?

To convert binary to decimal: multiply each bit by 2^position (from right to left, starting at 0) and sum the results. Example: 1011₂ = (1×2³)+(0×2²)+(1×2¹)+(1×2⁰) = 8+0+2+1 = 11₁₀. Use our converter above for instant results.

How to convert decimal to hexadecimal?

Divide the decimal number by 16 repeatedly, collecting remainders. Read remainders bottom-to-top. Example: 42÷16=2 remainder 10(A), 2÷16=0 remainder 2, result: 2A₁₆. Our calculator shows each step automatically.

How do I convert decimal to any base?

Enter your decimal number, select the target base (2–64), and the tool shows the result. For binary, octal, or hex, use the preset buttons. All common bases display at once—no need to convert one at a time.

What is a base converter calculator?

A base converter calculator converts numbers between numeral systems—binary (2), octal (8), decimal (10), hexadecimal (16), and more. Ours supports bases 2–64, auto-detects 0x/0b/0o prefixes, and shows step-by-step conversions.

Is there an integer base converter online with steps?

Yes. This integer base converter shows conversions with steps: enter your number, pick the input base, and view results for binary, octal, decimal, hex, base 36, base 64, and any custom base. Export or copy any result.

Does the base converter support negative numbers?

Yes. Enter a minus sign before the number (e.g., -42 or -0xff). The converter handles signed integers correctly across all bases.

Is my data sent to a server?

No. All conversion logic runs in your browser. Your input and results never leave your device.