IP Addressing & Subnetting

12 tools

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IPv4 Subnet Calculator

Find the network, broadcast address, host range and usable IPv4 capacity.

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Subnet Mask Calculator

Convert prefix lengths such as /24 into dotted-decimal and binary subnet masks.

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IP Network Overlap Checker

Check whether two IPv4 networks overlap and identify the shared range.

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CIDR Calculator

Analyze IPv4 CIDR notation and calculate network, host range and address capacity.

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VLSM Calculator

Allocate variable-length subnets for multiple host requirements.

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IP Range to CIDR Calculator

Convert an IPv4 address range into the smallest aligned CIDR blocks.

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CIDR to IP Range Calculator

Expand an IPv4 CIDR prefix into its exact address range.

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CIDR Summarizer / Supernet Calculator

Summarize multiple IPv4 networks into a compact covering set.

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Wildcard Mask Calculator

Calculate the wildcard mask used by ACLs and network matching.

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IP Address Calculator

Inspect IPv4 binary, hexadecimal, decimal and classification details.

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IPv4 Address Converter

Convert dotted IPv4 addresses to decimal, hexadecimal and binary.

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IPv4 Network / Host Calculator

Separate an IPv4 address into network and host portions.

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IPv6 Networking

6 tools

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IPv6 Subnet Calculator

Calculate IPv6 network prefixes, ranges and address capacity.

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IPv6 Address Calculator

Inspect expanded, compressed and basic IPv6 address types.

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IPv6 Address Compressor / Expander

Convert IPv6 addresses between full and compressed notation.

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IPv6 Prefix Calculator

Calculate canonical IPv6 prefixes and interface-bit capacity.

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IPv6 Subnet Count Calculator

Calculate how many target IPv6 subnets fit inside a parent prefix.

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IPv6 Address Range Calculator

Find the first and last address represented by an IPv6 prefix.

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Bandwidth & Data Transfer

8 tools

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Bandwidth Calculator

Calculate required network bandwidth from data volume and transfer time.

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Bandwidth Required Calculator

Estimate sustained bandwidth needed to move data over a time window.

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Network Throughput Calculator

Measure achieved throughput from transferred data and elapsed time.

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Data Transfer Time Calculator

Estimate transfer duration from data size and network rate.

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Download Time Calculator

Estimate download time using connection speed and efficiency.

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Upload Time Calculator

Estimate upload time using upstream speed and efficiency.

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Monthly Data Usage Calculator

Estimate monthly data consumption from average traffic and active hours.

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Link Utilization Calculator

Calculate the percentage of a network link consumed by traffic.

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Latency, TCP & Network Performance

8 tools

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Network Latency Calculator

Estimate propagation, processing and queuing latency.

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Round Trip Time (RTT) Calculator

Calculate average, minimum and maximum RTT from measurements.

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Bandwidth-Delay Product Calculator

Calculate data in flight from link bandwidth and RTT.

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TCP Window Size Calculator

Estimate the TCP window needed to fill a path based on BDP.

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TCP Throughput Calculator

Estimate TCP throughput from window size, RTT and link capacity.

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Packet Loss Calculator

Calculate packet-loss percentage from sent and lost packets.

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Jitter Calculator

Calculate mean packet-delay variation from latency samples.

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Network Efficiency / Goodput Calculator

Estimate useful goodput after utilization and protocol overhead.

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Ethernet, MTU & Infrastructure

6 tools

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MTU Calculator

Calculate payload capacity after IP, TCP and encapsulation overhead.

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MSS Calculator

Calculate TCP Maximum Segment Size from MTU and header lengths.

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Packet Overhead Calculator

Calculate packet overhead and payload efficiency.

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Ethernet Frame Size Calculator

Calculate Ethernet frame size and payload efficiency.

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PoE Power Budget Calculator

Estimate PoE switch power requirements and remaining budget.

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VLAN Calculator

Calculate VLAN identifier capacity under the selected bit width and reservations.

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DNS, DHCP & Network Services

5 tools

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DNS TTL Calculator

Convert DNS TTL values into cache lifetime and daily refresh estimates.

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DNS Propagation Time Calculator

Estimate a TTL-based cache-retention window with a planning buffer.

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DHCP IP Range Calculator

Calculate a suggested DHCP scope inside an IPv4 subnet.

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DHCP Scope Calculator

Estimate DHCP pool utilization and remaining leases.

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DNS Query Capacity Calculator

Estimate DNS query capacity from peak load and headroom.

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Wi-Fi & Wireless Networking

3 tools

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Wi-Fi Bandwidth Calculator

Estimate aggregate practical Wi-Fi throughput from clients and PHY rate.

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Wi-Fi Access Point Calculator

Estimate access points from coverage area and planning overlap.

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Wireless Link Budget Calculator

Calculate received signal level from transmit power, gains and losses.

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VoIP & Telecommunications

2 tools

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VoIP Bandwidth Calculator

Estimate VoIP bandwidth from concurrent calls and packet overhead.

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VoIP Concurrent Calls Calculator

Estimate concurrent calls supported by available bandwidth.

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