RMS Current Calculator | Calculate Root Mean Square Current Easily

Work & Installation — Input to Output Summary

Inputs:

• Type of Current (AC or DC)
• Peak Current (Iₚ) or Average Current (Iavg)
• Waveform Type (Sine, Square, Triangle)

Process:

• Select waveform type: Sine, Square, or Triangle.
• Enter Peak Current (Iₚ) or Average Current (Iavg).
• Calculator applies:
  Sine Wave: \( I_{RMS} = \frac{I_{peak}}{\sqrt{2}} \)
  Square Wave: \( I_{RMS} = I_{peak} \)
  Triangle Wave: \( I_{RMS} = \frac{I_{peak}}{\sqrt{3}} \)
• Output displays RMS current in Amperes (A).

Output:

• RMS Current (A)
• Waveform type
• Ratio between peak and RMS current

Installation / Use: Use RMS values when designing electrical systems, selecting resistors, and calculating power dissipation in AC circuits or electronic components.

Testing and Final Adjustments

Upon calculation of the RMS current, it should be checked by measurements with a True RMS Ammeter or by an Oscilloscope. Connect the device to the circuit and compare the values of measured RMS with the results of the calculator. In the case of AC waveforms, make sure that the waveform selection (sine, square, or triangle) is accurate. Record peak current with an oscilloscope and make sure that \( I_{RMS} = \frac{I_{peak}}{\sqrt{2}} \) to sinusoidal waves. Calibrate non-linear loads, distorted or harmonic loads, with actual waveforms integration or power analyzers. RMS=average current in DC circuits. Make the final check, such as checking the thermal performance of wires, resistors, and components of the circuit, it can safely be operated with the calculated RMS current. This testing would provide an equal power supply, low loss of power, and safe operation of equipment under actual load conditions.