Voltage Converter

Convert voltage units such as volts, millivolts, and kilovolts with Tooloria’s voltage converter.

About Voltage Converter

Voltage ratings differ across battery chemistries, household mains and high-voltage equipment. Tooloria’s Voltage Converter translates volts, millivolts and kilovolts, and offers DC→RMS conversions for sine, square and triangular waveforms. A safety tooltip reminds users of IEC shock thresholds. All calculations stay offline for secure lab work.

Frequently Asked Questions

How is RMS calculated for square waves?

For ideal square waves RMS equals the peak value. The converter applies the correct factor depending on waveform choice.

Does it cover split-phase 120/240 V?

Yes—enter the line-to-neutral voltage; the tool outputs the line-to-line equivalent and vice versa.

What about car batteries?

12 V auto batteries typically float at 12.6–12.8 V. Choose ‘battery mode’ to see state-of-charge estimates for lead-acid, Li-ion and LiFePO₄.