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When to exchange currency: use rate history to avoid a bad moment

Nobody can predict exchange rates, and you should be suspicious of anyone who says they can. What you can do is look at how a rate has moved over the last weeks and months, so you do not exchange at an unusually poor moment. This guide shows how to read a rate history chart and how to turn it into a simple plan.

3 min read Reviewed

On this page
  1. The short answer
  2. How to read a rate history chart
  3. A simple plan for a trip or a transfer
  4. Splitting the exchange reduces regret
  5. Tools that help
  6. Frequently asked questions
  7. Try these tools

The short answer

You cannot know whether a rate will rise or fall tomorrow. You can see where today’s rate sits compared with recent weeks. If it is near the best level of the last few months, exchanging now is reasonable. If it is near the worst, and your payment is not urgent, you can wait or exchange in parts.

This is a way to avoid obviously bad timing, not a way to beat the market. It is not financial advice.

How to read a rate history chart

  • Pick the right period. Seven days shows short-term noise; one to three months shows the recent range; one to five years shows the long-term pattern.
  • Find the high and low of the period. Where does today’s rate sit between them?
  • Look at the direction. A steady slide or climb tells you more than one sharp spike.
  • Remember which way the rate is quoted. “1 unit of A = x units of B” means a higher number is good if you are selling A and bad if you are buying A.

A simple plan for a trip or a transfer

  1. Decide the date you need the money and the amount.
  2. Check the three-month chart for your currency pair.
  3. If the rate is in the better half of the range, exchange the amount you are sure to need.
  4. If it is in the weaker half and you have time, exchange part now and part later.
  5. Compare what you are actually offered with the mid-market rate on a converter. A large gap is a fee you can avoid.

Splitting the exchange reduces regret

Exchanging all the money at once means you win or lose on one day. Exchanging in two or three parts over a few weeks averages out the rate. You may not get the best rate, but you will also not get the worst, and the plan is easy to follow.

ApproachGood whenWatch out for
Exchange all at onceYou need the money soon, or the rate looks favourableYou carry the whole risk of a bad day
Split into partsYou have a few weeks and the rate is unclearFixed fees can add up if you split too often
Wait for a target rateThere is no deadlineThe rate may never reach your target

Tools that help

A converter with history charts lets you check the pair in a minute. All Currency Converter, the free Android app from Robince Studio, shows rate history from 7 days up to 5 years for more than 170 currencies, works offline with the last updated rates and has a built-in calculator. You can also use the free online converter on this site for today’s reference rate.

Frequently asked questions

Is there a best time to exchange currency?

No one can reliably predict exchange rates. You can use a rate history chart to see whether today’s rate is near the high or low of the recent range and avoid exchanging at an unusually poor moment.

How far back should I look at exchange rate history?

For a trip or transfer in the next few weeks, the one-to-three-month chart is most useful. Longer charts show the long-term trend.

Should I exchange all my money at once?

Not necessarily. Splitting the exchange over a few weeks averages the rate. If you need the money soon, exchanging earlier may be simpler.

What is the mid-market rate?

The midpoint between the buy and sell price on the wholesale market. It is the fairest reference to compare with the rate you are offered.

Which app shows currency rate history?

All Currency Converter for Android shows rate history from 7 days to 5 years for over 170 currencies.

Try these tools

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