Country data
Common plug types, nominal voltages and frequencies are stored centrally. Multiple values and regional variations are not collapsed into one misleading number.
← ComparisonReviewed: 1 August 2026 Reviewed: 1 August 2026
Transparency
Data sources and methodology
The site keeps plug compatibility, voltage, frequency and protective earth as separate checks. Current central data review: 1 August 2026.
Directed compatibility
Compatibility is directional. A Type A plug may be accepted by a Type B socket, but that does not make a Type B plug suitable for a Type A socket.
Device suitability
The country check can flag differences. The INPUT rating on the actual device decides whether voltage and frequency are supported.
Limits
Hotels, older buildings, ships and mixed sockets may differ from the usual national system. The site does not replace manufacturer approval or an electrical inspection.
Sources
Sources for country data
World Plugs
International Electrotechnical Commission (IEC) · Primary source
IEC country overview of commonly used plug types, nominal voltages and frequencies.
IEC TR 60083
International Electrotechnical Commission (IEC) · Primary source
IEC technical report covering nationally standardised plug and socket systems.
Plugs and sockets
World Standards · Supplementary source
Supplementary country and territory overview of plug types, voltage and frequency.
The sources describe the systems commonly used in each destination. A particular building, ship or multi-standard outlet can still differ, so the actual socket and device label remain decisive.
All sources and methodology →Sources
Sources for plug types and adapters
World Plugs
International Electrotechnical Commission (IEC) · Primary source
IEC country overview of commonly used plug types, nominal voltages and frequencies.
IEC TR 60083
International Electrotechnical Commission (IEC) · Primary source
IEC technical report covering nationally standardised plug and socket systems.
IEC 60884-2-5
International Electrotechnical Commission (IEC) · Primary source
IEC safety requirements for household adapters with or without protective earth.
Plugs and sockets
World Standards · Supplementary source
Supplementary country and territory overview of plug types, voltage and frequency.
The sources describe the systems commonly used in each destination. A particular building, ship or multi-standard outlet can still differ, so the actual socket and device label remain decisive.
All sources and methodology →