Industry-Specific

  • Simply Supported Beam Deflection Calculator (Center Point Load)
    Calculate the maximum mid-span deflection of a simply supported beam under a central point load using δ = PL³ / (48EI). Free engineering tool.
  • VinFast Total Cost of Ownership Calculator
    Estimate the true cost of owning a VinFast EV: combine purchase price, insurance, maintenance and charging, minus resale value, over your ownership years.
  • VinFast VF7 Charging Time Calculator
    Estimate how long it takes to charge a VinFast VF7 EV. Enter battery size, charger power, start and target charge level and efficiency to get the time.
  • VinFast VF6 Charging Time Calculator
    Estimate how long it takes to charge a VinFast VF6 EV. Enter battery size, start/target charge, charger power and efficiency to get the time in hours and minutes.
  • Concurrent Users Bandwidth Calculator
    Calculate the bandwidth available per user when a connection is shared. Enter total Mbps and the number of concurrent users to get per-user Mbps and Kbps.
  • CDN Bandwidth Cost Calculator
    Estimate your monthly CDN bill from data transfer (GB) and HTTP requests. Enter price per GB and per million requests to see total and annual cost.
  • Reserved Instance vs On-Demand Savings Calculator
    Compare cloud Reserved Instance vs On-Demand pricing. Calculate your savings percentage, monthly savings, and total savings over a 1- or 3-year term.
  • Managed Database / RDS Cost Calculator
    Estimate monthly and annual cost of a managed database (RDS-style) from instance hourly price, storage GB, and provisioned IOPS.
  • Decimal to Binary Converter
    Convert any decimal (base-10) number to binary (base-2) instantly. See the binary digits and bit count using the divide-by-2 remainder method.
  • Usable IP Address Count Calculator
    Calculate the number of usable IPv4 host addresses for any subnet prefix (/0 to /32) using usable = 2^(32 − prefix) − 2.
  • Uptime / SLA Downtime Calculator
    Calculate allowed downtime for any SLA uptime percentage (99%, 99.9%, 99.99%) per day, week, month, quarter or year in seconds, minutes, hours and days.
  • Watts to dBm Calculator
    Convert power in watts to dBm instantly. Free Watts to dBm calculator using dBm = 10·log10(W / 0.001) for RF, antenna, and signal power conversions.
  • RF Link Budget Calculator
    Calculate received RF signal power (dBm) from transmit power, antenna gains, path loss, and system losses. Free link budget calculator with EIRP.
  • Wildcard Mask Calculator
    Convert a subnet mask or CIDR prefix to its wildcard (inverse) mask. Each octet = 255 − mask octet. Perfect for Cisco ACLs and OSPF.
  • TCP Throughput Calculator
    Calculate maximum TCP throughput from window size and round-trip time (RTT). Free bandwidth-delay product tool in Mbps, Kbps and bps.
  • EIRP Calculator
    Calculate EIRP (Effective Isotropic Radiated Power) in dBm, dBW and watts from transmitter power, antenna gain and cable loss.
  • Stud Count Calculator
    Estimate how many wall studs you need by wall length and on-center spacing (16 or 24 in). Adds corner studs for fast framing material takeoffs.
  • Concrete Footing Calculator
    Calculate concrete footing volume in cubic yards and cubic feet, plus the number of bags needed. Enter width, depth, length, quantity and waste %.
  • Bags of Concrete Calculator
    Calculate how many 40, 60, or 80 lb bags of concrete you need for a slab, footing, or pad. Enter length, width, and thickness to get bag count.
  • Number of Subnets Calculator
    Calculate the number of subnets created when you subnet an IPv4 network. Enter the original and new prefix lengths to find subnets, borrowed bits, and hosts.
  • Total Cost of Ownership Calculator
    Calculate the true annual and total cost to own a car — depreciation, fuel, insurance, maintenance, taxes and fees combined into one clear figure.
  • Car Down Payment Calculator
    Calculate your car down payment from the vehicle price and percent down. Instantly see the down payment amount and the balance you'll finance.
  • Car CO₂ Emissions from Fuel Calculator
    Calculate the kilograms of CO₂ produced from burning petrol or diesel. Enter liters or US gallons of fuel to get your carbon emissions instantly.
  • Linear Feet to Square Feet Calculator
    Convert linear feet to square feet instantly. Enter the linear length and board width in inches to find total coverage area in sq ft.

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