IP to Decimal Converter
Convert IPv4 addresses back and forth between standard dotted-decimal notation and long integer format instantly.
Ready to convert values...
Ready
Conversion Reference
1. Formula (IP to Decimal)
Calculated as: $(a \times 255^3) + (b \times 255^2) + (c \times 255) + d$, or via left shift bitwise operations: $(a \ll 24) + (b \ll 16) + (c \ll 8) + d$.
2. Database Indexing
Storing IP addresses as 32-bit integers in relational databases dramatically speeds up range queries, firewall match checks, and sorting operations.
Frequently Asked Questions (FAQ)
Integers allow for simple mathematical comparisons (greater than / less than), making it much faster to check whether an IP falls within a specific network range.
This tool is specifically designed for standard IPv4 dotted-decimal notation and 32-bit unsigned long integers.
Yes. All conversions happen entirely inside your browser using client-side JavaScript execution.