Low Voltage Calculator

Striving to provide a comprehensive and user-friendly platform that offers a range of calculators and tools specifically tailored for low voltage technicians and professionals. The website aims to serve as a valuable resource for individuals working with low voltage systems.

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Constantly Evolving!

We understand that the field of low voltage systems is dynamic, with new technologies, regulations, and best practices emerging regularly. That's why we are committed to keeping our website up-to-date and relevant.


  • Ohm's Law Calculator
  • Resistor Value Calculator
  • Wire AWG Conversion
  • Current Flow
  • Total Resistance Calculation
  • Total Voltage
  • Total Current
  • Total Resistance
  • Total Resistance Calculation
  • Parallel Voltage Divider
  • Parallel Current Division
  • Parallel Total Current Calculator
  • Instrumentation

  • Flow Measurement - Differential Pressure
  • Hydrostatic Level Measurement Conversion
  • Ultrasonic Level Measurement Conversion
  • Control Valve Sizing
  • PID Controller Output
  • Span Calculation
  • Linearization
  • Percent Span
  • Error Calculation
  • Zero Error Calculation
  • Range Overlap
  • Flow Rate Calculation
  • Pressure Calculation
  • Signals

  • 4-20 mA Signal Conversion
  • 4-20 mA to Percentage Conversion
  • 0-10V to Percentage Conversion
  • Other



  • Network Connector
  • Networking Cabling Types and Specifications
  • Bandwidth Calculation
  • PoE Power Budget Calculator
  • PoE Voltage Drop Calculator
  • PoE Injector/Switch Selection
  • PoE Max Cable Length Calculator
  • Fiber Optic Bend Radius Chart