Type G vs Type M Plugs: Amperage & Pin Design Differences & Compatibility

Type G is a 3-pin, grounded plug rated 13A at 220-240V, while Type M is a 3-pin, grounded plug rated 15A at 220-240V. The two differ mainly in amperage and pin design, which is what decides compatibility — whether a Type G plug fits a Type M socket, and vice versa. For a related pairing, see type I vs type O plug.

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Type G power plug and wall socket
Type G
Type M power plug and wall socket
Type M
Standard BS 1363 BS 546 (15A)
Pin Configuration Three rectangular pins in triangular pattern (live/neutral 6.35x3.18mm, earth 3.18x7.92mm) Three large round pins in triangular pattern (earth 8.7mm diameter, live/neutral 7.1mm diameter)
Grounding Grounded Grounded
Pin Count 3 3
Amperage 13A 15A
Voltage Range 220-240V 220-240V

Key Differences Between Type G and Type M

Here's how Type G and Type M compare, point by point. You might also want type E vs type N plug.

  • Grounding: Both Type G and Type M are grounded.
  • Pin Size and Shape: Type G: Three rectangular pins in triangular pattern (live/neutral 6.35x3.18mm, earth 3.18x7.92mm). Type M: Three large round pins in triangular pattern (earth 8.7mm diameter, live/neutral 7.1mm diameter).
  • Application: Type G is typically used for heavy-duty appliances such as hair dryers, kettles, and heaters. Type M is typically used for heavy-duty appliances such as hair dryers, kettles, and heaters.

Type G and Type M Compatibility

Type G in Type M Sockets: Generally no. A Type G plug (Three rectangular pins in triangular pattern (live/neutral 6.35x3.18mm, earth 3.18x7.92mm)) does not fit a Type M socket (Three large round pins in triangular pattern (earth 8.7mm diameter, live/neutral 7.1mm diameter)) without a travel adapter.

Type M in Type G Sockets: Generally no. A Type M plug (Three large round pins in triangular pattern (earth 8.7mm diameter, live/neutral 7.1mm diameter)) does not fit a Type G socket (Three rectangular pins in triangular pattern (live/neutral 6.35x3.18mm, earth 3.18x7.92mm)) without a travel adapter. You might also want type A vs type E plug differences explained.

If you're planning a trip, tell us which country you're visiting and we can confirm whether you need a Type G or Type M travel adapter.

Does a Type G plug fit into a Type M socket?

Generally no. A Type G plug (Three rectangular pins in triangular pattern (live/neutral 6.35x3.18mm, earth 3.18x7.92mm)) does not fit a Type M socket (Three large round pins in triangular pattern (earth 8.7mm diameter, live/neutral 7.1mm diameter)) without a travel adapter.

Are Type G and Type M plugs the same?

No. Type G follows the BS 1363 standard and Type M follows BS 546 (15A) — they differ in pin design.

Which countries use Type G and Type M plugs?

Type G plugs are used in 67 countries, including Abu Dhabi, Ascension Island, Bahrain, Bangladesh, Belize. Type M plugs are used in 9 countries, including Andaman & Nicobar Islands, Eswatini, India, Lakshadweep, Lesotho.

How can you tell a Type G plug from a Type M plug?

A Type G plug has three rectangular pins in triangular pattern (live/neutral 6.35x3.18mm, earth 3.18x7.92mm), and is grounded. A Type M plug has three large round pins in triangular pattern (earth 8.7mm diameter, live/neutral 7.1mm diameter), and is grounded. The quickest tell is pin size and spacing — compare the two pin configurations above.