IP Range Calculator
Enter a start IPv4 address and an end IPv4 address to calculate the inclusive size of the range.
IP Range Calculator tool
Both endpoints are included in the count.
Result will appear here.
| Metric | Value |
|---|
Privacy: calculations run locally in your browser. No IP addresses are stored or transmitted.
The tool converts both IPv4 addresses to unsigned 32-bit integers and computes:
end - start + 1
Examples
- 192.168.1.1 → 192.168.1.255 → 255 addresses
- 10.0.0.0 → 10.0.0.255 → 256 addresses
- 8.8.8.8 → 8.8.8.8 → 1 address
FAQ
- What does this IP range calculator do?
It calculates how many IPv4 addresses exist between a start IP and an end IP, inclusive.
- Does the tool require the start IP to be smaller than the end IP?
Yes. The start IP must be less than or equal to the end IP.
- Is the range inclusive?
Yes. Both the start and end addresses are included in the count.
- Is my data stored?
No. The calculation runs locally in your browser.