🌐 Networking & Telecommunications

DHCP IP Range Calculator

Calculate the usable address range inside an IPv4 subnet after reserving network, broadcast and optional exclusions.

Free toolClient-sideNo account required
Result
Enter values and select Calculate.
All processing is performed locally in your browser unless the tool explicitly says otherwise.
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How to use this calculator

What to enter

Enter or select the following as requested: Subnet CIDR; Addresses reserved at start; Addresses reserved at end. Follow the units, valid ranges, examples, and options displayed beside each field.

What the result means

The statistic summarizes the entered data using the measure named by the calculator. Results depend on the supplied observations and, where applicable, whether the data are treated as a sample or an entire population.

When to use it

Use this to summarize or compare a dataset. Check data quality, missing values, units, and the sample-versus-population convention before interpreting the statistic.