IPv4 Range Calculator

Convert an IPv4 start/end address range to CIDR blocks and host count. Use this free browser-based ipv4 range calculator from XTRAW Tools.

IPv4 Range Calculator helps you convert an IPv4 start/end address range to CIDR blocks and host count. Use this free browser-based calculator from XTRAW Tools to compare inputs, estimate results, and prepare useful developer output.

How to Use the IPv4 Range Calculator

Enter the required input shown in the form.
Review the network, CIDR, port, HTML, JSON, XML, CSV, YAML, delimiter, formatting, or conversion assumptions.
Run the tool, then copy the result or adjust one input at a time to compare scenarios.

What This Tool Helps With

Convert an IPv4 start/end address range to CIDR blocks and host count. It is designed for developers, IT users, site owners, ecommerce teams, SaaS teams, students, network admins, and technical users who want a fast browser-based result before relying on command-line tools, spreadsheets, scripts, parsers, production systems, or professional sources.

Start IP Address: 192.168.1.0
End IP Address: 192.168.1.255

Common Uses

People use this calculator when they need a quick way to convert an IPv4 start/end range into CIDR blocks and review address counts.

Data Conversion: Convert structured data, IP ranges, addresses, entities, CSV, JSON, XML, YAML, or related values between useful formats.
Project Planning: Plan networking, subnetting, data migration, web development, SaaS, hosting, or configuration workflows.
Measurement: Measure host counts, address ranges, port classes, subnet sizes, and other practical network or developer values.

Formula or Method

Count = end − start + 1; enclosing prefix = 32 − ⌈log₂(count)⌉

Example

Example inputs: Start IP Address: 192.168.1.0; End IP Address: 192.168.1.255

Example result: Using the default range, there are 256 addresses and the CIDR summary is 192.168.1.0/24.

Related Tools

IPv4 Range Calculator FAQ

Is the IPv4 Range Calculator free?

Yes. This tool is free to use on XTRAW Tools.

Do I need to create an account?

No. XTRAW tools are designed for browser-based use without requiring an account.

Are the results production-ready?

Results are intended for quick reference and convenience. Always validate important networking, parser, encoding, formatting, or data-conversion output before relying on it in production.

Disclaimer: This tool is provided for general informational, educational, and convenience purposes only. It is not cybersecurity, networking, legal, compliance, data-governance, professional IT, engineering, or production-systems advice. Network results, parser behavior, encoding conventions, data transformation rules, and formatting output may vary by environment, language, library, system, and requirements. Always verify important results with qualified professionals, official documentation, production tests, backups, and authoritative sources before relying on them.