What is a floating currency and exchange rate?

Unsure what a floating currency is or how the day to day shifting value of currencies impacts your wallet?

This guide breaks down the complexities of floating currencies, explaining their influence on your holiday money, everyday purchases and investments.

We'll also show you how a Wise Account can help you manage your international finances with smart, transparent pricing*.

💡Learn more about Wise

Key takeaways

What is a floating currency?

A floating currency is one whose value isn't fixed. It’s a currency whose value is determined by supply and demand in the foreign exchange market against other currencies.¹

Think of it as a constantly adjusting price tag, influenced by countless global factors including interest rates, international trade, economic performance and more.

Currency traded for ‘immediate’ delivery is said to be traded on the spot market. The price paid for a unit of currency on the spot market at any given time is often called the ‘spot price’¹

It differs from a fixed (or pegged currency) which is tied to whether a country's central bank maintains its currency's value at a fixed rate relative to another currency or a group of currencies.

Check out our handy currency converter below to see today’s currency conversion rates.

Examples of floating currencies

The majority of the world’s major currencies are floating, including:

• British pounds (GBP)
• US dollars (USD)
• Euros (EUR)
• Canadian dollars (CAD)
• Swiss francs (CHF)
• Japanese yen (JPY)
• Australian Dollar (AUD)

These currencies fluctuate daily as they're bought and sold in global markets and the primary driver behind a floating currency's value is supply and demand.

📚 Strongest currencies in the world

Floating vs. fixed exchange rates

Floating exchange rates (sometimes known as flexible or self-correcting exchange rates) are when the value of a country's money changes often and is determined by the supply and demand for that money in the global market.²

Fixed exchange rates are when a country's government or central bank sets the value of its currency at a specific level compared to another currency or a basket of currencies and keeps it there.

Essentially, floating rates fluctuate mostly on their own based on market forces, while fixed rates stay stable because the government actively manages and maintains that specific value.

Unlike fixed exchange rates, where a government or central bank sets and maintains a specific value for its currency³, a floating currency is largely determined by the market (though central banks may still intervene to manage extreme fluctuations). This offers flexibility but also introduces currency volatility.

A small country may decide to keep its currency value stable by fixing it to the US dollar at 1 local unit = 1 USD. If the country’s economy grows quickly and goods become more expensive, the fixed rate might lead to a loss of competitiveness, so the government has to buy or sell its currency constantly to maintain that rate.

📚 What is a pegged currency?

How a floating currency affects individuals

For UK citizens and consumers, understanding floating currencies is more than just an economic theory. This is because it directly impacts your finances in tangible ways. Let’s take a look at a few.

Impact on your holiday spending money

If you’re planning your next trip or holiday the strength of the Pound Sterling (GBP) against the currency of your destination can significantly alter your holiday budget.

A stronger GBP means your money goes further, making your holiday cheaper. A weaker GBP means you'll need more pounds to buy the same amount of foreign currency.

To make your holiday budget stretch even further, consider opening a Wise account and using the linked Wise card. Some banks and providers may promote fee-free currency conversion and then hide their fees in exchange rate mark-ups.

But with Wise, you don’t have to worry about exchange rate markups or high transaction fees when you spend abroad. With Wise you’ll get transparent, upfront fees as low as 0.33%* and at the mid-market exchange rate.

Get your Wise card 💳

The cost of everyday imports

Many goods and services we rely on are imported and are impacted by interest rates, inflation, political instability and market speculation - all of which influence floating currencies.⁴

When the GBP weakens, these imports become more expensive for UK businesses. This increased cost is often passed on to you, the consumer, leading to higher prices for everything from electronics to groceries.

Your overseas investments and savings

If you hold investments or savings in foreign currencies, their value in GBP terms will fluctuate with the exchange rate.

A favourable movement can boost your returns, while an unfavourable one can reduce them, even if the underlying asset performs well in its local currency.³

Wise may be useful for funding your international investment platforms as you can keep and hold your money in 40+ currencies in your Wise account and convert only when the rate is right for you.
You can also set up rate alerts and be notified via email or push notification in real-time when your desired exchange rate is met so you choose when the best time to buy or sell is.

Set up rate alerts 💹

Sending and receiving money abroad

When you need to send money internationally to friends and family or receive payments or gifts from overseas, the exchange rate you get can make all the difference.

Traditional banks often add significant markups to their exchange rates, alongside other fees, meaning less money arrives at its destination.

Make your money move smarter with Wise

If you live in the UK and have regular international payments, whether for holidays, online shopping or you own a business, navigating floating currency fluctuations is easy with Wise.

Wise offers a transparent way to send and receive money across borders. By using the mid-market exchange rate and charging a clear, upfront fee*, you avoid the hidden costs and markups common with traditional providers.

You can hold funds in 40+ currencies and get local account details in 8+ currencies including USD, EUR and more, making international transactions feel more like domestic ones. This means more of your money reaches its intended destination, saving you time and effort.

Be Smart, Get Wise

Sources:

1. Gov.uk - floating currency definition and spot rates
2. WorldRemit - floating vs fixed rates
3. Investopedia - central banks determine prices
4. Eurochange - things that impact floating currencies

Sources last checked on 17th February 2026