Voltage Spike Calculator


In the realm of electronics, understanding voltage spikes is crucial for maintaining device integrity and safety. A voltage spike calculator can be a handy tool to quickly determine the impact of these spikes on circuits. In this article, we’ll delve into how to use such a calculator effectively.

How to Use

To use the voltage spike calculator, simply input the required parameters into the designated fields and click the “Calculate” button. The calculator will then provide you with the calculated result.


The formula used in the voltage spike calculator is:


  • Vs​ is the voltage spike.
  • Vi​ is the initial voltage.
  • L is the inductance.
  • R is the resistance.

Example Solve

Let’s consider an example where:

  • Vi​=10 volts
  • L=2 henries
  • R=5 ohms

Substituting these values into the formula:

So, the voltage spike Vs​ is 14 volts.


Q: Can this calculator handle different units for inductance and resistance?
A: No, the calculator assumes consistent units for inductance (henries) and resistance (ohms).

Q: Is the formula used in this calculator applicable to all circuits?
A: The formula is valid for circuits where inductance and resistance are significant factors contributing to voltage spikes.

Q: Can I use this calculator for AC circuits?
A: Yes, the calculator can be used for both DC and AC circuits.


A voltage spike calculator is a valuable tool for engineers and hobbyists working with electronic circuits. By understanding how to use this calculator effectively, you can better anticipate and mitigate the impact of voltage spikes on your circuits.

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