How to Budget for Travel Using Exchange Rates
A practical way to turn a foreign daily budget into your home currency, account for card fees and exchange markup, and avoid the most common travel-money mistakes.
The most common travel-budgeting mistake isn't picking the wrong daily spending target — it's converting that target using today's exact mid-market rate and then being surprised when your card statement shows a slightly worse number.
How to convert a travel budget accurately
- Estimate your daily spend in the destination currency (accommodation, food, transport, activities).
- Convert it to your home currency at the current rate to see the rough cost.
- Add a buffer of 2-5% to account for your card or bank's markup on top of the mid-market rate.
- Re-check the rate a few days before departure — exchange rates can move several percent over a few weeks, especially for less commonly traded currencies.
Worked example
Budgeting €150/day for a 10-day trip is €1,500 total. At a mid-market rate of 1.09 USD/EUR, that's roughly $1,635. Adding a 3% buffer for card fees brings a more realistic planning number to about $1,684.
A few practical tips
- Avoid airport currency exchange counters — they typically carry the widest markups of any option.
- Check whether your card charges a separate foreign transaction fee on top of its exchange rate markup.
- For cash, exchanging a modest amount before you travel and the rest via card or ATM abroad is usually cheaper than exchanging it all at once at a physical counter.
Convert your daily budget at the current rate with the Currency Converter before you finalize a trip budget.