Networking Calculator

  • Network Latency from Distance Calculator
    Estimate one-way and round-trip network latency (RTT) from physical distance over fiber optic cable using the speed of light and a velocity factor.
  • Cloud Data Egress Cost Calculator
    Estimate cloud data egress (outbound transfer) charges. Enter GB transferred, free tier, and price per GB to see your billable data and total cost.
  • CIDR to Subnet Mask Converter
    Convert a CIDR prefix (/24, /16, etc.) to a dotted-decimal subnet mask instantly. See total addresses and usable hosts for any IPv4 prefix length 0–32.
  • Packet Loss Percentage Calculator
    Calculate network packet loss percentage from packets sent and lost. Instantly see loss rate, packets received, and success rate for diagnosing connections.
  • Data Cap Usage Calculator
    Convert your monthly data cap into the maximum continuous speed (Mbps) you could stream 24/7, plus average usage per day and per hour.
  • PoE Power Budget Calculator
    Calculate how many PoE devices your switch power budget supports. Pick a 802.3af/at/bt class or custom watts and see max devices, total draw and headroom.
  • Cloud Data Transfer Time Calculator
    Estimate how long it takes to upload or download data to/from the cloud based on file size in GB and connection bandwidth in Mbps.
  • Streaming Data Usage Calculator
    Estimate how much data streaming video or music uses. Find GB per hour by quality (SD, HD, 4K) and total data for any number of hours.
  • IP Broadcast / Network Address Calculator
    Calculate network address, broadcast address, subnet mask, usable host range and host count from any IPv4 address and CIDR prefix length.
  • Fiber Optic Loss Budget Calculator
    Calculate total fiber optic link loss in dB from cable length, fiber attenuation, connectors and splices, plus your available power budget and link margin.
  • VSWR & Return Loss Calculator
    Convert between reflection coefficient, VSWR and return loss. Get mismatch loss and reflected power instantly for RF and antenna matching.
  • MTU & MSS Calculator
    Calculate TCP Maximum Segment Size (MSS) from MTU. Subtracts IP and TCP headers (typically 40 bytes) with IPv4/IPv6 and options support.
  • dBm to mW Calculator
    Convert dBm to milliwatts (mW) instantly. Enter a power level in dBm to get the equivalent power in milliwatts and watts using mW = 10^(dBm/10).
  • IP Camera Bandwidth Calculator
    Calculate total network bandwidth (Mbps) and storage for IP/CCTV camera systems from bitrate per camera and number of cameras. Free online tool.
  • WiFi Coverage Area Calculator
    Estimate WiFi coverage area from router range and find how many routers or access points you need to cover your home or office.
  • Website Bandwidth Calculator
    Estimate your website's monthly bandwidth in GB/TB from average page size, monthly pageviews and a redundancy/overhead percentage. Free hosting planner.
  • Subnet Mask / CIDR Calculator
    Calculate usable hosts, total addresses, and host bits for any CIDR prefix (/0 to /32). Fast IPv4 subnet calculator using 2^(32−prefix)−2.
  • MTBF / MTTR Availability Calculator
    Calculate network or system availability (uptime %) from MTBF and MTTR. See downtime percentage and estimated downtime hours per year instantly.
  • SLA Uptime & Downtime Calculator
    Calculate allowed downtime from any SLA uptime percentage. See permitted outage per day, week, month, quarter or year in seconds, minutes, hours and days.
  • Shannon Channel Capacity Calculator
    Calculate the maximum data rate of a noisy channel with the Shannon-Hartley theorem C = B·log2(1 + S/N) from bandwidth and SNR in dB.
  • Propagation Delay Calculator
    Calculate signal propagation delay over a cable or medium from distance and velocity factor. Get delay in nanoseconds and microseconds instantly.
  • Crosstalk Calculator
    Calculate crosstalk in decibels from source and coupled voltages using crosstalk_dB = 20·log10(V_coupled / V_source). Free and instant.
  • Transfer Speed from Transfer Time Calculator
    Calculate effective transfer speed (bps, kbps, Mbps, MB/s, GB/s) from data size and elapsed time. Choose decimal (1000) or binary (1024) prefix bases.
  • Data Transfer Time Calculator
    Estimate how long it takes to transfer files over a network, HDD or USB. Supports B/kB/MB/GB/TB, bps vs B/s, 1000/1024 base and transmission efficiency.

Categories