IP Range Calculator

Calculate span and total quantity of addresses between start and end IPv4 addresses.

Total IP Addresses: 254

How It Works

  • Parses IPs into 32-bit integers and calculates inclusive span delta.
Formula & Technical Standard
Address Count = (End IP as UInt32) - (Start IP as UInt32) + 1

Practical Example

Scope Span
Input: 10.0.0.1 to 10.0.0.254
Output: 254 addresses
Inclusive host count.

Frequently Asked Questions

Can any range be one CIDR block?

No. Single CIDR blocks must align on power-of-two boundaries.

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