--- title: "IPv4 Range Calculator | IPv4 Range Calculator | XTRAW Tools" description: "Convert an IPv4 start/end address range to CIDR blocks and host count. Use this free browser-based calculator from XTRAW Tools for IPv4 start/end ranges, CIDR summaries, address counts, and network planning." url: "https://xtraw.com/calculators/ipv4-range-calculator" date: "2026-05-20T21:54:24+00:00" language: "en-GB" --- [Z Score Calculator](https://xtraw.com/calculators/z-score-calculator)[A/B Test Calculator](https://xtraw.com/calculators/ab-test-calculator) [![IPv4 Range Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/xtraw-ipv4-range-calculator-360x360.jpg)](https://xtraw.com/images/virtuemart/product/xtraw-ipv4-range-calculator-360x360.jpg "IPv4 Range Calculator from XTRAW Tools") new [Back to: Calculators](https://xtraw.com/calculators "Calculators") # 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 1. Enter the required input shown in the form. 2. Review the network, CIDR, port, HTML, JSON, XML, CSV, YAML, delimiter, formatting, or conversion assumptions. 3. 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 - [CIDR Range Calculator](https://xtraw.com/tools/cidr-range-calculator) - [Subnet Split Calculator](https://xtraw.com/tools/subnet-split-calculator) - [Network Address Calculator](https://xtraw.com/tools/network-address-calculator) - [Broadcast Address Calculator](https://xtraw.com/tools/broadcast-address-calculator) - [Host Count Calculator](https://xtraw.com/tools/host-count-calculator) - [Wildcard Mask Calculator](https://xtraw.com/tools/wildcard-mask-calculator) ## 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. **Related Products** ![Tooltip]() [![CIDR Range Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-cidr-range-calculator-360x360_230x230.jpg) CIDR Range Calculator](https://xtraw.com/calculators/cidr-range-calculator "CIDR Range Calculator") Calculate network address, broadcast, host range, and host count from a CIDR block. Use this free browser-based cidr range calculator from XTRAW Tools. Custom prototype for related products [![Subnet Split Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-subnet-split-calculator-360x360_230x230.jpg) Subnet Split Calculator](https://xtraw.com/calculators/subnet-split-calculator "Subnet Split Calculator") Split a network into equal-sized subnets and list their addresses. Use this free browser-based subnet split calculator from XTRAW Tools. Custom prototype for related products [![Network Address Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-network-address-calculator-360x360_230x230.jpg) Network Address Calculator](https://xtraw.com/calculators/network-address-calculator "Network Address Calculator") Calculate the network address from any host IP and subnet mask or prefix. Use this free browser-based network address calculator from XTRAW Tools. Custom prototype for related products [![Broadcast Address Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-broadcast-address-calculator-360x360_230x230.jpg) Broadcast Address Calculator](https://xtraw.com/calculators/broadcast-address-calculator "Broadcast Address Calculator") Calculate the broadcast address for a subnet. Use this free browser-based broadcast address calculator from XTRAW Tools. Custom prototype for related products [![Host Count Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-host-count-calculator-360x360_230x230.jpg) Host Count Calculator](https://xtraw.com/calculators/host-count-calculator "Host Count Calculator") Calculate the number of usable hosts in a subnet from a prefix length. Use this free browser-based host count calculator from XTRAW Tools. Custom prototype for related products [![Wildcard Mask Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-wildcard-mask-calculator-360x360_230x230.jpg) Wildcard Mask Calculator](https://xtraw.com/calculators/wildcard-mask-calculator "Wildcard Mask Calculator") Calculate the wildcard mask (inverse mask) from a subnet mask or prefix length. Use this free browser-based wildcard mask calculator from XTRAW Tools. 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