Addressing / Calculator 20

Conventional IPv4 Host Count

Traditional subnet arithmetic reserves all-zero and all-one host values in prefixes up to slash thirty.

Your inputs

Conventional IPv4 Host Count

Addressing · 1 input

Calculated result254host addresses
Example result
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How to use this calculator

  1. Enter prefix length in bits.
  2. Select Calculate and keep the output unit with the answer.

Before you use the answer

Write down whether a size uses decimal or binary prefixes and whether a rate counts bits or bytes. Compare the same system boundary on both sides of a performance calculation. Measured throughput is usually a more useful planning input than the maximum number on a product label.

Slash thirty-one point-to-point and slash thirty-two conventions are outside this tool.

Does it save my inputs?

No calculation history is stored by this website. The calculator works locally in your browser. See the privacy policy for hosting and contact details.

Why might a result be approximate?

Measurement uncertainty, ideal-model assumptions and floating-point rounding can all matter. Displaying more digits does not improve the original measurement.

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