Everything You Need to Know: Travel Adaptor for America

Planning a trip across the pond? A travel adaptor for America is the first thing every UK traveller should pack. American sockets are a completely different shape from ours, and the voltage is lower too, so your UK plug simply will not fit the wall. The good news is that for most modern devices, a single adaptor is all you need. This guide covers the exact plug type, the voltage difference, when a converter matters, and the Anker adaptor we recommend for a smooth trip.

Quick Answer: What Travel Adaptor Do You Need for America?

Here is the quick version for anyone short on time. For the US, you need a Type A or Type B adaptor, because America runs on a 120V, 60Hz supply. Most UK phones, laptops and tablets are dual voltage (100-240V), so a simple travel adaptor for US sockets is all they need. You only need a voltage converter if you are bringing a single-voltage 230V appliance, such as some hair tools. Check the label on each device before you pack.

US Electrical Standards Explained

Understanding the basics makes every other decision easy. America's mains supply differs from the UK's in three ways: plug shape, voltage and frequency. The US uses 120V at 60Hz, while the UK uses 230V at 50Hz (Electrical Safety First). American sockets take Type A and Type B plugs, both with flat pins, rather than the UK's rectangular three-pin design. Because the voltage is roughly half of the UK's, the risk is not damage from too much power but appliances that underperform, or motors and clocks that run at the wrong speed. A US travel adapter solves the plug-shape problem instantly, while the voltage question depends on your device.

US and UK standards compared

Do You Need a Voltage Converter for America?

Whether you need a converter depends on one number on your device.

Every appliance has a voltage rating printed on it or its charger. That rating tells you whether a plug adaptor alone will do, or whether you also need a converter to change the voltage.

Dual Voltage Appliances (110–240V)

Most modern electronics fall into this group.

Dual-voltage devices accept any supply voltage from around 100V to 240V. Look for “100-240V” or “110-240V” on the label. Phones, laptops, tablets, camera chargers and electric toothbrushes are almost always dual voltage. For these, a UK to US travel adapter is all you need, because the device handles the 120V supply without any converter.

Single Voltage Appliances (230V Only)

Single voltage appliances are built for 230V only and will not work properly on America's 120V. Running them without help can leave them weak or non-functional. Typical examples include some hair dryers, straighteners and travel kettles. For these, you need a step-up voltage converter or transformer alongside your UK to US travel adapter plug, matched to the appliance's wattage.

Travel Adaptor vs Voltage Converter vs Transformer

These three devices are easy to confuse, so here is how they differ.

For most UK travellers, a travel adaptor for America is all that is required, because the devices they carry are already dual voltage.

Which UK Appliances Work in America With Just an Adaptor?

Here is a simple breakdown of what to expect.

Only need an adaptor (dual voltage):

• Smartphones and their chargers
• Laptops and tablets
• Camera and drone battery chargers
• Most electric shavers and toothbrushes
• USB power banks

Also need a voltage converter (single voltage or high wattage):

• Some hair dryers and straighteners
• Travel kettles and travel irons
• Older or budget appliances rated 230V only
• Any device without a “100-240V” label

Always check the rating plate before you travel. When in doubt, a US UK travel adapter with USB ports lets you charge phones and tablets safely while you sort out higher-powered items separately.

Safety Considerations for Using UK Appliances in the US

A few safety points protect both you and your devices.

Earthing and Grounding Pins

Grounding matters most for larger appliances. UK plugs always include an earth pin, and many US Type B sockets provide grounding too. If your appliance has a metal body or a three-pin UK plug, choose an adaptor that keeps the earth connection. Type A adaptors are ungrounded, so reserve them for double-insulated, low-risk devices.

Wattage Limits on Converters and Transformers

Never ignore the numbers on a converter. Every converter and transformer carries a maximum power rating in watts or amps. Using an appliance that draws more than this rating can cause overheating or failure. Add up the wattage of anything you plug in and stay comfortably below the limit.

Double Insulated Equipment

Some devices are designed to work without an earth.

Double-insulated equipment carries a square-within-a-square symbol and requires no earth connection because its casing provides two layers of protection. Most phone chargers and small electronics are double insulated, which is why a simple two-pin adaptor is safe for them.

Recommended Travel Charging Solution for the US

For most trips to the States, one compact adaptor covers your everyday charging. Browse the full Anker Chargers and Travel Chargers ranges for more options, or start with our travel-ready pick below.

The Anker Nano Travel Adapter is a compact, 5-in-1 adaptor built for international trips. Its retractable prong system includes US pins, so it plugs straight into American Type A sockets, and it works across 200+ destinations if your travels continue. Two USB-C and two USB-A ports charge up to five devices at once, with up to 20W from the main USB-C port for fast phone charging. Smart 6A temperature control and six layers of protection keep everything safe. At 107g and 86 x 50 x 25 mm, it fits easily into hand luggage.

Its USB ports connect directly to your phones, tablets and earbuds. The built-in AC socket accepts 2-pin plugs, such as US Type A and EU Type C, and like any travel adaptor, it changes the plug shape without converting voltage, so pair it with dual-voltage (100-240V) devices.

• Plug coverage: US, UK, EU and AU via retractable prongs, across 200+ destinations
• Ports: built-in AC socket, 2x USB-C and 2x USB-A
• USB output: up to 20W from USB-C1; 15W shared when several USB ports are used
• Size and weight: 86 x 50 x 25 mm, 107g
• Protection: 6A temperature control and a six-layer safety system
• Note: this is an adaptor, not a voltage converter, and suits dual-voltage (100-240V) devices

Output at a glance

Conclusion

A travel adaptor for America is the smallest, smartest thing a UK traveller can pack for a US trip. American sockets run on 120V at 60Hz and take Type A or Type B plugs, so your UK devices need an adaptor to fit. For dual-voltage electronics, that adaptor is all you need; only single-voltage appliances call for a converter. The Anker Nano Travel Adapter covers your everyday charging in one pocket-sized unit, so every device stays powered wherever your American adventure takes you.

FAQ

Here are quick answers to the questions UK travellers ask most.

Is the USA plug 2 pin or 3 pin?

It can be either. The US Type A plug has two flat pins and no earth, while the Type B plug adds a third round grounding pin. Both fit standard American sockets. Two-pin Type A is common for small electronics, while three-pin Type B is used for appliances that need an earth connection.

Does the US use Type A or B plugs?

The US uses both Type A and Type B. Type A has two flat parallel pins, and Type B has the same two pins plus a round earthing pin. American sockets accept both, so a travel adaptor covering Type A and Type B will work throughout the United States.

Can I use my UK phone charger in the USA?

Yes, almost always. UK phone chargers are dual voltage, marked “100-240V”, so they handle America's 120V supply safely. You only need a travel adaptor to change the plug shape, not a converter. Check the small print on the charger to confirm the 100-240V rating before you travel.