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Travel · India · Type D/C/M · 230V

India: Type D, and why a Europe adapter is not enough.

India's primary socket is Type D — three large round pins in a triangle, a shape used almost nowhere else. Travelers who pack the Europe adapter they already own find its thin Type C pins rattling loose in a Type D socket: a contact problem, not just an annoyance. The supply is 230V at 50Hz.

Pin diameters decide everything here

Three round-pin standards share Indian wall plates, differing chiefly in pin thickness. That one dimension is why an adapter works or arcs.

PlugPinsPin diameterWhere it is usedFits a Type D socket?
Type C2, ungrounded4.0mmSmall appliances, chargers, importsLoosely — poor contact
Type D3, triangular5.08mmThe general-purpose Indian standardYes — this is the socket's own plug
Type M3, triangular7.05mmAir conditioners, geysers, heavy loadsNo — too thick, needs its own socket

Many Indian wall plates are combination units sized for both Type D and the fatter Type M, and small Type C pins will physically enter the Type D holes. Entering is not connecting: 4.0mm pins in 5.08mm shrouds make intermittent contact — a charger that stops and starts, warms up, or leaves the phone at 40% overnight.

230V, and the label that makes it a non-issue

India runs 230V at 50Hz, near enough double the 120V US devices see at home. The distinction is printed on the charger: an input line reading 100–240V ~ 50/60Hz means it needs only a shape change. Every USB-C brick, laptop supply and camera charger sold in the US carries that line. A 120V-only appliance does not, and no plug adapter will save it.

Check the earth pin before you buy. On a Type D plug the earth pin is not just longer, it is thicker than the other two, and in many Indian sockets it mechanically opens shutters over the live and neutral holes. An adapter that fakes the earth pin with a thin stub may fail to open those shutters at all. A genuine three-pin Type D adapter avoids the whole problem.

The packing list

  • Type D

    Type D plug adapter (US to India)

    The correct shape: three thick round pins in the Indian triangle, with a full-size earth pin that opens socket shutters.

    Output plug
    Type D, grounded
    Pin diameter
    5.08mm
    Function
    Shape only
    Check price on Amazon
  • Universal

    EPICKA Universal Travel Adapter

    Covers Type D via its universal head plus USB-C and USB-A, useful if India is one leg of a longer route.

    Plug types
    A, C, G, I
    USB
    3× A, 1× C
    Fuse
    8A, spare included
    Check price on Amazon
  • 30W

    Anker 511 Nano 3 30W

    The compact half of the kit: one small GaN brick behind the adapter charges a phone at full PD speed.

    Output
    30W USB-C PD
    Input
    100–240V
    Prongs
    Folding
    Check price on Amazon

Works as-is vs needs a converter

On a plug adapter alone: phones, laptops, tablets, e-readers, mirrorless and DSLR battery chargers, drone chargers, electric toothbrushes, cordless shavers and power banks. These are all switching supplies with a 100–240V range and 230V sits comfortably inside it.

Needs a converter, or a dual-voltage replacement bought before you fly: hair dryers, straighteners, curling irons, travel kettles and anything that turns electricity into heat or spins an AC motor. A converter is a transformer — heavy, rated in watts, easy to overload; see voltage converters vs adapters. Packing spare lithium cells? Read the airline rules for chargers and batteries first.

India also shares Type D and Type M with several neighbours and with Type G territory further east, so one trip can easily need two adapter shapes. Cross-check each stop on plug types by country.

Nearby guides

FAQ

What plug adapter does India use?

Type D — three thick round pins arranged in a triangle, at 230V. Type C two-pin plugs enter the same holes but make poor contact, and Type M is the larger version used for heavy appliances.

Will my European adapter work in India?

Not reliably. A Type C Europlug has 4.0mm pins against Type D's 5.08mm holes, so it sits loose and makes intermittent contact. Buy an adapter made for Type D instead.

Is 230V safe for my laptop charger?

Yes, provided the brick's input line reads 100 to 240 volts, which every US-sold laptop and USB-C charger does. It needs the plug shape changed and nothing else.

Do I need a converter for a hair dryer in India?

A 120V-only dryer needs a heavy step-down converter and is usually not worth carrying. A dual-voltage travel dryer rated 100 to 240 volts runs on a plug adapter alone.