London for Americans: What to Know Before You Go
Last updated: August 2, 2026
London is one of the easiest foreign cities for Americans to visit — we speak the same language (mostly), the streets are safe, and you can pay for everything with a tap of your phone. But London does things differently from any US city, and the small cultural gaps are where first-time visitors get caught out.
As an Englishman born and raised, I’ve written this guide to cover the practical differences — money, tipping, pubs, phones, plugs, and the unspoken rules that locals follow without thinking. Master these and you’ll feel like a local by Day 2.
For a full first-timer’s overview including itineraries and what to book, see our First Time in London guide.
Money and Banking
Currency Basics
The UK uses the British Pound Sterling (£), not the Euro. As of July 2026, £1 ≈ $1.34. Check the current rate at xe.com before your trip.
Cards vs Cash
London is nearly cashless. You can pay with a contactless card or phone almost everywhere — restaurants, pubs, shops, markets, street performers, even church donation boxes have card readers.
What to bring:
- A credit card with no foreign transaction fees — cards that charge 3% per transaction will add up fast over a week. Visa and Mastercard are accepted everywhere. American Express is accepted at most restaurants and shops but not all.
- £20-30 in cash for small market purchases, tips, or the rare cash-only pub. You may never use it.
- A debit card for ATM withdrawals if needed, but avoid airport ATMs — they have terrible exchange rates.
Tipping Culture
British tipping is nothing like American tipping. Here’s the simple version:
| Situation | What to Do |
|---|---|
| Restaurants | Check the bill — 10-12.5% service charge is usually already added. If it says “service charge included,” don’t tip more. If not, add 10%. |
| Pubs (bar service) | Don’t tip. No tip jar exists. If you want to be generous, say “and one for yourself” — the bartender adds £2-3 to your total. |
| Pubs (table service) | 10% is generous if no service charge is added. |
| Taxis | Round up to the nearest pound, or add 10% for good service. |
| Hotel housekeeping | £2-3 per night, left in the room. |
| Tour guides | £5-10 per person for a good tour. |
Key difference: Nobody tips 20% in London. 10-12.5% is the maximum expected, and it’s often already on the bill. If you tip 20%, you’ll get confused looks.
Pub Culture
The pub is the heart of British social life, and it works differently from an American bar. Here’s what you need to know:
How to Order
- Go to the bar. Don’t sit at a table waiting for someone to come take your order. Walk up to the bar, find a gap, and wait to be served.
- Know what you want. The bartender will ask “What can I get you?” — have your answer ready. If you’re ordering food, ask for a menu at the bar.
- Pay when you order. You pay for drinks and food at the bar, not at the end. Some pubs now have QR codes on tables for ordering via phone, but bar service is still the default.
- Don’t tip the bartender. See the tipping table above.
Pub Hours
- Most pubs open at 11:00 AM or noon and serve food from noon.
- Last orders are called at 11:00 PM (some pubs have late licenses until midnight or 1:00 AM). A bell rings 10 minutes before last orders — this is your cue to buy your final round.
- You get about 20 minutes after last orders to finish your drinks before the pub closes.
What to Order
- A pint of ale or lager — the default pub drink. If you’re not sure what to get, ask for a pint of whatever local ale is on tap. The bartender will let you try a small amount first if you ask.
- Pub food — pies, fish and chips, bangers and mash, Sunday roast (only on Sundays). Don’t expect fancy — pub grub is hearty, filling, and meant to go with beer.
- A cup of tea — yes, you can order tea in a pub. It costs about £2-3 and comes with milk. Don’t ask for iced tea — they’ll look at you like you’ve lost your mind.
Language Differences
We speak English, but not your English. Here’s a quick translation guide:
| American | British | Meaning |
|---|---|---|
| Bathroom / restroom | Toilet / loo | Where you go to relieve yourself |
| Check, please | Bill, please | What you ask for at a restaurant |
| French fries | Chips | Fried potato sticks |
| Potato chips | Crisps | Bagged snack chips |
| Cookie | Biscuit | Sweet baked treat |
| Biscuit (US) | Scone | (Closest equivalent — but not the same) |
| Sweater | Jumper | Knitted top |
| Sneakers | Trainers | Athletic shoes |
| Subway | Underground / Tube | The train network |
| Line (of people) | Queue | A line of people waiting |
| Vacation | Holiday | Time off work |
| Cell phone | Mobile | Your phone |
| Gas / gasoline | Petrol | Car fuel |
| Trash | Rubbish | Garbage |
| Elevator | Lift | Vertical transport |
| Truck | Lorry | Large goods vehicle |
| Sidewalk | Pavement | Where pedestrians walk |
| Takeout | Takeaway | Food to go |
| Pharmacist | Chemist | Where you get medicine |
| Restroom | Toilet / loo | (Yes, again — it comes up constantly) |
The big one: If you ask for the “bathroom,” people will think you want to take a bath. Ask for the “toilet” — it’s not rude in Britain, it’s just the word.
Electrical Plugs
The UK uses Type G plugs — three rectangular pins in a triangular arrangement. This is different from both US plugs and European plugs.
- Buy adapters before you arrive — they’re £2 on Amazon, £5 at a pharmacy in London, and £15 at the airport.
- Voltage: The UK runs on 230V/50Hz. Most modern phone chargers, laptop chargers, and camera chargers handle 100-240V automatically — check the small print on your charger. If it says “100-240V,” you just need a plug adapter, not a voltage converter.
- Hair dryers and straighteners: Check if yours are dual-voltage. If not, you’ll need a voltage converter or just buy a cheap one at Boots (£15-20) when you arrive.
- Power strip trick: Bring a US power strip and plug the whole strip into one UK adapter. That way you only need one adapter for all your devices.
Weather and What to Wear
London Weather Reality
London averages 20-22°C (68-72°F) in summer and 7-8°C (45-46°F) in winter. It rains about 130 days per year — less than New York City — but the rain is unpredictable. Sunshine, downpour, and sunshine again within an hour is normal.
What to Wear
- Comfortable walking shoes — you’ll walk 15,000-25,000 steps per day. Sneakers or walking shoes, not fashion shoes.
- Layers — a light jacket or cardigan you can remove and carry. Mornings and evenings are cool even in summer.
- A compact umbrella — not a golf umbrella. Something that fits in a bag.
- No need to overdress — Londoners dress casually for daytime. Jeans, sneakers, and a jacket are perfectly fine for most restaurants and pubs. Save the smart clothes for high-end restaurants and West End shows.
Healthcare and Emergencies
Emergency Numbers
- 999 or 112 — Emergency services (police, ambulance, fire). Free from any phone.
- 111 — Non-emergency medical advice (NHS). Call if you need medical help but it’s not a 999 emergency.
- 101 — Non-emergency police.
Pharmacies
Boots and Lloyds Pharmacy are everywhere — look for the blue Boots sign. Pharmacists can advise on minor ailments and sell over-the-counter medicine. British over-the-counter medicine is much cheaper than the US:
- Paracetamol (acetaminophen): ~£0.40-£1.00 for 16-32 tablets
- Ibuprofen: ~£0.40-£1.00 for 16-32 tablets
- Antihistamines: ~£2-4
Travel Insurance
US citizens are not covered by the NHS. A hospital visit can cost hundreds of pounds without insurance. Buy travel insurance before you leave home — it costs $30-80 for a week’s coverage and covers medical emergencies, trip cancellations, and lost luggage.
Tap Water
Safe to drink everywhere in London. Restaurants will serve you free tap water if you ask — just say “tap water, please.” Don’t feel obligated to buy bottled water.
Phones and Data
Using Your US Phone
- Check your carrier’s international plan: Most US carriers offer day passes ($10-12/day). T-Mobile includes free international data at 2G speeds.
- eSIM (cheapest option): Buy a UK data eSIM before you arrive via Airalo, Holafly, or Nomad. Plans start at $5-15 for 1-10GB. Download to your phone, activate when you land.
- Wi-Fi: Almost every pub, café, restaurant, and hotel has free Wi-Fi. McDonald’s, Pret A Manger, and Caffè Nero have free Wi-Fi at all locations.
Social Etiquette
Queuing
The British queue for everything — buses, shops, bars, Tube platforms. Find the end of the line and wait. Pushing in is the ultimate social crime. If someone was there before you, say “After you.”
Talking to Strangers
Londoners are friendly but reserved. We don’t make small talk with strangers the way Americans do — no chatting in queues, no “how’s your day?” at the checkout. But if you need help, just ask directly: “Sorry, could you point me toward the Tube station?”
Escalator Rule
Stand on the right, walk on the left. This is the most important rule in London. Stand on the left side of a Tube escalator and you’ll be sighed at, tutted at, or asked to move. Just stand right.
FAQ
Can I use dollars in London?
No. The UK uses British Pounds. You can withdraw pounds from ATMs, but most places don’t accept foreign currency. Use a contactless card or phone for everything.
Do I need to speak British English?
No — Londoners understand American English perfectly. But knowing a few key differences (toilet, bill, chips) will save confusion and make you feel more at home.
Is London safe compared to US cities?
London is one of the safest major cities in the world. Violent crime is rare. The main risks for tourists are pickpocketing in crowded areas and tourist scams. Use common sense and you’ll be fine.
Can I drink the tap water?
Yes — London tap water is safe and tastes fine. It’s free at restaurants if you ask.
What should I not do in London?
Don’t stand on the left of escalators, don’t tip 20%, don’t order “iced tea” in a pub, don’t push into queues, and don’t talk loudly on the Tube. Follow these and you’ll blend right in.
Ready to plan your trip? Check out our itineraries and our complete First Time in London guide.