Smart Home and IoT

  • Smart Home Device Power Consumption Calculator
    Estimate the yearly cost, energy and CO2 of standby (vampire) power from smart home devices. Enter standby watts and your electricity rate.
  • 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.
  • Smart Thermostat Savings Calculator
    Estimate how much money a smart thermostat can save you each year on heating and cooling. Enter your annual energy cost and savings percentage.
  • 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.
  • 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.
  • 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.
  • 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.
  • LED Savings Calculator
    Calculate how much money you save each year by switching from incandescent or halogen bulbs to energy-efficient LED lighting.
  • 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.
  • 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.
  • 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.

Categories