United Kingdom to Thailand Power Adapter Guide

United Kingdom runs 230⁠V and Thailand runs 230⁠V. You need a Type A/B/C/O plug adapter; confirm the exact input range, frequency and grounding before use.

United Kingdom and Thailand share a broad voltage zone; that does not prove that every appliance rating matches. Confirm the exact voltage and frequency on its label.

United Kingdom (230⁠V) vs Thailand (230⁠V) at a glance

Spec	United Kingdom	Thailand
Voltage	230⁠V	230⁠V
Frequency	50⁠Hz	50⁠Hz
Plug types	Type G	Type A/B/C/O

Your United Kingdom devices in Thailand

Hair Dryer Adapter Only MacBook Pro Charger (USB-C Power Adapter) Adapter Only CPAP Machine Check Label iPhone Charger Adapter Only

Next step

What to do next

Check one device in ThailandUse your exact device label for Thailand, not just the route average.Build a Thailand trip packSave several devices, adapter needs, and converter/no-go warnings together.Adapter vs converterAvoid the common mistake: plug shape does not change voltage.

The adapter we recommend

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Get a United Kingdom→Thailand adapter

Safety check: a plug adapter only changes plug shape. It does not convert voltage, so confirm your device label before buying.

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Best travel adapters for Thailand →

FAQ

Do United Kingdom plugs work in Thailand?

No — United Kingdom Type G plugs don't fit Thailand Type A/B/C/O sockets. You need a plug adapter.

Will my United Kingdom hair dryer work in Thailand?

For the typical United Kingdom single-voltage model: check its exact label and manufacturer instructions first; the shared voltage zone is not proof of compatibility. Thailand is 230⁠V. Confirm frequency and any voltage selector before connecting.

Is the voltage different between United Kingdom and Thailand?

United Kingdom is 230V and Thailand is 230V. They are in the same voltage zone.

Power outlets in Thailand · Adapter vs converter

Guidance only — not professional electrical advice. Always confirm against your device's label before plugging in. Local wiring (especially in hotels and older buildings) can vary.

Sources and limits

What the evidence covers

A source supports only the facts, socket types or models listed below. A model example does not verify every device in its category. Confirm your own label and outlet.

Coverage: United Kingdom
Reviewed: 2026-07-16

Evidence by fact

Nominal voltage: UK Electricity Safety, Quality and Continuity Regulations 2002, regulation 27 Scope: Great Britain checked: 2026-07-16 ; VDE: Power supply and security when traveling Scope: United Kingdom (Types verified: G) checked: 2026-07-17
Frequency: UK Electricity Safety, Quality and Continuity Regulations 2002, regulation 27 Scope: Great Britain checked: 2026-07-16 ; VDE: Power supply and security when traveling Scope: United Kingdom (Types verified: G) checked: 2026-07-17
Socket types: VDE: Power supply and security when traveling Scope: United Kingdom (Types verified: G) checked: 2026-07-17

Scope

UK Electricity Safety, Quality and Continuity Regulations 2002, regulation 27: Declares 230V low-voltage supply at 50Hz, with statutory variation limits.
VDE: Power supply and security when traveling: All listed base claims match this non-binding VDE consumer reference.

Sources and limits

What the evidence covers

A source supports only the facts, socket types or models listed below. A model example does not verify every device in its category. Confirm your own label and outlet.

Coverage: Thailand
Reviewed: 2026-07-17

Evidence by fact

Nominal voltage: Thailand Energy Regulatory Commission: Household tariff voltage Scope: Thailand checked: 2026-07-17
Frequency: VDE: Power supply and security when traveling Scope: Thailand checked: 2026-07-17
Socket types: Thai Industrial Standard TIS 166-2549 Scope: Thailand (Types verified: O) checked: 2026-07-17
Types still unverified: A, B, C

Scope

Thai Industrial Standard TIS 166-2549: Defines the Thai TIS 166 household plug/socket geometry, mapped here to Type O. It does not prove every legacy or hybrid socket profile travelers may encounter.
Thailand Energy Regulatory Commission: Household tariff voltage: The current household tariff identifies 230 V metered service. It does not enumerate legacy socket families.
VDE: Power supply and security when traveling: Only matching claims count as corroborated; unresolved differences: sockets VDE=A/B/C/F dataset=A/B/C/O. Differences resolved by checked primary evidence: voltage VDE=220 dataset=230-230.