IP to Decimal Converter

Summary

Convert any IPv4 address to its 32-bit decimal integer (and back) with a full binary breakdown of each octet.

How it works

1. Enter a dotted-decimal IPv4 address (e.g. 192.168.1.1) in the top field.
2. Each octet is converted to its 8-bit binary equivalent.
3. The four 8-bit groups are concatenated into a single 32-bit binary string.
4. That 32-bit string is interpreted as an unsigned integer to produce the decimal result.
5. To reverse, enter a decimal integer in the bottom field and the dotted IP is reconstructed.

Use cases

• Understand how IP addresses are stored internally by operating systems and databases.
• Debug network masks, CIDR ranges, and subnetting calculations.
• Verify IP integer values stored in database columns (INT UNSIGNED).
• Convert IP addresses for use in numeric comparisons or range queries.
• Learn binary arithmetic and bit-shifting by watching the octet breakdown.
• Cross-check tool output against manual calculations in a classroom setting.

Frequently Asked Questions