IPv4 to Binary Converter
Enter an IPv4 address and pick a direction to convert between dotted decimal and binary.
Result
How to use
- Enter your values in the fields above.
- Press Calculate to see your result instantly.
- Use the Share button to copy a link to your result.
About this calculator
An IPv4 address like 192.168.1.1 is really a 32-bit number, split into four 8-bit octets and written in dotted decimal for humans to read. Each octet ranges from 0 to 255 because that's the full range of an 8-bit binary value (00000000 to 11111111).
Converting between the decimal and binary forms — and seeing the full 32-bit integer — is a routine task for network engineers and students studying subnetting, ACLs, and routing tables, since subnet masks, wildcard masks, and CIDR calculations are all defined in binary underneath the dotted decimal notation everyone actually types. It's a staple exercise in CCNA/CCNP and networking coursework.
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