Electrical Voltage
Check the voltage (110V, 220V) of different countries. Protect your electronic devices while traveling.
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Conversão de Tamanhos
Categoria
Electrical Voltage
Comprovante de Conversão
De
Country
Para
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Voltage (V)
Os resultados são baseados em tabelas de equivalência padrão e podem variar.
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Understand the concept
Voltage (voltage) is the “potential difference” that powers your devices. Countries and regions may use different standards (for example, 110–127V or 220–240V), and this affects compatibility.
Before traveling, the most important thing is to check the label on your device or charger. Many chargers are automatic bivolt (e.g.: “Input 100–240V”), while dryers and straighteners often are not.
Practical example: if your charger says 100–240V, it usually works on both 127V and 220V (you may only need a plug adapter). A 127V device connected to 220V can quickly burn out without a transformer.
In addition to voltage, some equipment also depends on frequency (50/60 Hz). In general, modern chargers cope well, but motors and some appliances may have restrictions.
Use this tool to check the country's standard and reduce risk. When in doubt, choose bivolt equipment and take a suitable socket adapter.
How to use this tool
- Select the destination country.
- See typical voltage and notes.
- Compare with the “Input” range on your device/charger.
- If not compatible, consider transformer (not just adapter).
FAQ
Does the adapter resolve voltage?
No. Adapter only changes the fit; transformer changes the voltage.
How do I know if my charger is bivolt?
Look for “Input 100–240V” on the label.
What happens if I connect 127V to 220V?
It could burn the device. Avoid.
What about 220V in 127V?
The device may not work or become weak.
Does frequency (Hz) matter?
For some equipment, yes. For modern chargers, normally not.
Technical notes
Base técnica
Formula: result = equivalence(origin, value, target). Unit & scope: in Electrical Voltage, we use an equivalence mapping across standards. The input is interpreted in the origin standard and we return the equivalent in the target standard (country, voltage, result).
Observação
Discrete equivalences vary by standard, industry and manufacturer; when possible, use a physical measurement (e.g., cm) as the baseline.
Referência
Domain standards when applicable (e.g., IEC for electrical, ISO for sizing) and widely used industry practices.