Binary IP Converter
Convert an IPv4 address between dotted-decimal and binary notation.
About Binary IP Converter
Each IPv4 address is a 32-bit number, conventionally written as four decimal octets (0–255) separated by dots. Converting to binary means expressing each octet as its 8-bit binary equivalent — for example 192 becomes 11000000 — and concatenating all four to get the full 32-bit binary form of the address.
Formula
Octet to binary
Each decimal octet (0–255) maps to an 8-bit binary value
- octet
- One of the four 0–255 decimal segments of the IPv4 address
Worked example
With the default values below, Binary IP Converter returns Binary (Dotted) of 11000000.10101000.00000001.00001010. Change any input above and every figure here is recalculated in your browser.
Inputs used
- IPv4 Address
- 192.168.1.10
Results
- Binary (Dotted)
- 11000000.10101000.00000001.00001010
- Binary (32-bit continuous)
- 11000000101010000000000100001010
- Octet Breakdown
- 192 → 11000000 | 168 → 10101000 | 1 → 00000001 | 10 → 00001010
Step by step
- 1Values used
- 2Octet to binary
- 3Binary (Dotted)= 11000000.10101000.00000001.00001010
- 4Binary (32-bit continuous)= 11000000101010000000000100001010
- 5Octet Breakdown= 192 → 11000000 | 168 → 10101000 | 1 → 00000001 | 10 → 00001010
Assumptions and limits
- The result is derived only from the single input listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
Why is each octet exactly 8 bits?
An octet's decimal range is 0–255, and 8 bits can represent exactly 256 values (0 to 255), so 8 bits per octet is the natural fit for a 32-bit address split into four parts.
What is the binary form of 255?
255 in binary is 11111111 — all eight bits set to 1, which is why it's used in subnet masks.
How does this relate to subnetting?
Subnetting decisions (which bits are network vs. host bits) are made by looking at the binary form of the address and mask side by side, which is exactly what this converter shows.