Smart Home and IoT

  • 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.
  • Smart LED Bulb Energy Savings Calculator
    Calculate how much you save each year by switching old bulbs to energy-efficient smart LEDs. Enter wattage, hours, bulbs and electricity cost.
  • Security Camera Storage (NVR) Calculator
    Calculate NVR/DVR hard drive storage for security cameras from bitrate, recording hours, retention days and camera count. Get GB and TB needed.
  • LED Strip Length, LED Count & Power Draw Calculator
    Calculate LED strip power draw, total LED count and current. Enter strip length, LEDs per meter, watts per LED and voltage to size your power supply.
  • LED Wire Voltage Drop Calculator
    Calculate the voltage drop in wires feeding an LED or LED strip. Enter current, length, wire area and material to find loss, voltage at the LED and power waste.
  • Watts to kWh Calculator
    Convert watts and run time to kilowatt-hours (kWh). Enter device power and hours used to find energy consumption for billing or efficiency checks.
  • TV Mounting Height Calculator
    Find the perfect TV wall mount height. Enter your seated eye level, screen height and tilt to get the exact bottom-edge mounting height in inches.
  • Projector Throw Distance Calculator
    Calculate how far to place your projector from the screen using its throw ratio and screen width. Get distance in inches, feet, and meters instantly.
  • Illuminance Unit Conversion Calculator
    Convert illuminance between lux, kilolux, phot, foot-candle, nox and lumen-per-area units instantly. Free universal physics unit converter.
  • Incandescent vs CFL vs LED Bulb Running Cost Comparison (15-Year)
    Compare 15-year running cost (purchase + electricity) of incandescent, CFL and LED bulbs. Currency-agnostic; enter your local price and electricity rate.
  • Watts to Lux Calculator
    Convert watts to lux using luminous efficacy and lit area. Enter power (W), efficacy (lm/W) and area (m²) to get illuminance in lux instantly.
  • Recessed Lighting Calculator
    Enter room length, width, ceiling height, and per‑fixture lumens to estimate how many recessed lights you need for comfortable, even lighting.
  • Recessed Lighting Spacing Calculator
    Input room size, ceiling height, target foot‑candles, and lumens per fixture to get recessed light count and recommended spacing.
  • Lumens to Watts Calculator
    Convert lumens to watts instantly. Enter luminous flux and luminous efficacy (lm/W) to find the electrical power a light source needs.
  • Beam Angle to Spot Diameter Calculator
    Calculate the spot (beam) diameter of a light fixture from its beam angle and distance. Find spot size, radius and illuminated area instantly.
  • Daily Light Integral Calculator
    Calculate the Daily Light Integral (DLI) for plants from PPFD and photoperiod. Convert µmol/m²/s and light hours into mol/m²/day for grow lights.

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