The exchange rate you get depends entirely on where and how you exchange. The difference between the best and worst options can be 8–12% — meaning £120 less in your pocket on a £1,000 currency exchange. Here is a ranked comparison.
How Currency Exchange Methods Compare
| Method | Rate quality | Fees | Notes |
|---|---|---|---|
| Fee-free travel card (Starling/Monzo/Chase) | Real interbank rate | 0% | Best for card spending |
| Wise multi-currency account | Near-interbank | 0.35–1.5% conversion | Best for large conversions |
| Online currency providers (click & collect) | Good | Small margin | Order ahead; compare at comparison sites |
| Post Office | Good | Margin in rate | Reliable; no commission |
| High-street bureau (not airport) | Moderate | Margin in rate | Compare before using |
| High-street bank branch | Below average | Fee + poor rate | Usually not competitive |
| Airport bureau de change | Very poor | 8–12% margin | Worst option; avoid |
| Hotel currency desk | Very poor | Similar to airport | Avoid |
| Dynamic currency conversion | Very poor | 4–6% worse than card | Never use |
Option 1 — Fee-Free Travel Cards (Best)
If you have a Starling, Monzo, or Chase debit card:
- Use it to pay directly at shops, restaurants, and hotels
- Withdraw local cash once from an ATM at your destination
- Pay using the real interbank rate automatically
This eliminates the need to exchange cash in advance for most trips. Your card gives you the best available rate at point of use.
Option 2 — Online Currency Providers
For trips where you need cash (some destinations rely more heavily on cash), order online before you travel:
- Compare rates at a currency comparison site
- Look for “buy back guarantee” — unused currency can be returned at the same rate
- Choose click-and-collect at an airport (you collect when you arrive, but ordered at better online rates) or delivery to home
Compared to buying at the airport on the day, ordering online can save 5–8%.
Option 3 — Post Office Currency
The Post Office currency service is a reliable mid-market option for cash. Rates vary but are typically better than most high-street banks. No commission charged. Order online for delivery or for collection at a branch.
Option 4 — High-Street Bureaux
High-street currency bureaux (Moneycorp, Caledonian FX, etc.) offer better rates than airport equivalents. Always compare before using — rates vary. Look for:
- No commission advertised (rate includes the margin)
- Rate guaranteed at time of order (not subject to change on collection)
When Cards Beat Cash Exchange — And When Cash Wins
For the vast majority of travellers to developed destinations, fee-free cards are the right primary tool. But cash still has a place:
| Situation | Cards or cash? |
|---|---|
| Restaurant, hotel, supermarket | Card (fee-free) |
| Market stalls, street food | Cash |
| Rural areas with poor card infrastructure | Cash |
| Tips and gratuities | Local cash |
| Emergency backup | Small amount of local cash |
| Large pre-planned purchase (car hire, excursion) | Card (Section 75 protection) |
The practical approach: card as your main tool, one ATM withdrawal of local cash on arrival as backup.
Timing Your Currency Exchange
Exchange rates fluctuate daily based on economic conditions, central bank decisions, and market sentiment. Trying to “time” the market is not reliable — professional traders fail at this regularly.
What you can do:
- Set a rate alert: Many currency apps (Wise, Revolut, XE.com) allow you to set a rate alert so you are notified if the rate hits a target level. If you are buying a large amount of cash (£1,000+), waiting for a rate improvement of 1–2% can save meaningful money.
- Avoid the week before major economic announcements: Bank of England meetings, US Federal Reserve decisions, and political events can move exchange rates sharply. Rates often settle back.
- Lock in online: If you find a rate you’re happy with from an online provider, book it. Many providers let you lock a rate for 24–48 hours.
For card spending abroad: Timing is irrelevant — you always get the current rate at point of transaction. This is one advantage of card spending over cash exchange.
Currency Apps and Comparison Tools
Several apps and websites make it easier to get the best rate:
XE.com / XE Currency app: Free, real-time exchange rate reference. Shows the mid-market rate — use this as your benchmark. Any cash exchange worse than mid-market by more than 2–3% is expensive.
Wise: Shows live rates and fees before you convert. Useful for seeing the true all-in cost of a conversion.
Caxton or FairFX app: Prepaid travel cards that show rates in real time. Competitive but slightly behind Starling/Monzo on rate.
Google: Type “£500 to euros” for an instant rate reference (uses a public mid-market rate).
Large Amounts — When to Use Wise or an Online Broker
For large currency conversions (£5,000+) — such as buying property abroad, paying a foreign contractor, or making a large overseas investment — standard fee-free card or bureau options are not the right tool.
At this scale, use:
- Wise for amounts up to £50,000–£100,000: Transparent fees, good rate, regulated
- A specialist FX broker (Moneycorp, Currencies Direct, TorFX): For £10,000+, specialist brokers offer near-interbank rates with personal account management. Forward contracts allow you to lock in a rate for future payment.
The savings at scale are significant — a 0.5% improvement on £50,000 is £250. Banks typically charge 1.5–3% over mid-market on large conversions.
What to Absolutely Avoid
Airport bureaux de change: Margins of 8–12% are standard. A £500 exchange at 10% margin = £50 lost versus a better option.
Dynamic currency conversion: At any foreign card terminal or ATM, if offered the option to pay in pounds — decline. Always choose local currency.
Hotel currency desks: Hotel exchange rates are typically airport-level or worse.
For the complete travel money strategy — cards, cash, and spending mix — see the Travel Money Guide UK.