IP Range Calculator
Enter a start IPv4 address and an end IPv4 address to calculate the inclusive size of the range.
Both endpoints are included in the count.
| Metric | Value |
|---|
Privacy: calculations run locally in your browser. No IP addresses are stored or transmitted.
How it works
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
When to use this tool
This tool is designed for quick, practical tasks such as everyday calculations, data formatting, or simple conversions. It is best used when you need fast results without installing software or using complex tools.
When to use
- Quick checks or one-time calculations
- Validating or converting data before using it elsewhere
- Simple tasks that do not require advanced software
When not to use
- Critical financial, legal, or medical decisions
- Large-scale or automated processing
- Situations requiring guaranteed precision beyond basic validation
Always review results before using them in important contexts.
About this tool
This tool helps you perform quick utility operations directly in your browser. It runs entirely in your browser without sending data to a server.
You can use this tool when handling simple tasks without installing additional software. The results should be interpreted as a processed output based on your input data.
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.