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How to Change Currency on Google Analytics

Cody Schneider••7 min read

Seeing the wrong currency in Google Analytics can turn your revenue reports into a confusing mess. This guide will walk you through exactly how to change your currency settings in both Universal Analytics and Google Analytics 4, ensuring your financial data is accurate and ready for analysis.

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Why Correct Currency Settings Matter

Having the correct currency is about more than just seeing the right symbol next to your numbers. It's fundamental to measuring actual business performance. An incorrect currency setting throws off every financial metric you rely on, creating a ripple effect of bad data.

Here’s what gets impacted:

  • Revenue Reporting: This is the most obvious one. If you’re seeing revenue in USD ($) when your sales are in Euros (€), your reports aren't just slightly off - they're completely wrong. You can't make informed decisions about sales trends or product performance with skewed data.
  • Return on Ad Spend (ROAS): Calculating ROAS involves comparing the revenue generated from ads to the cost of those ads. If your ad platforms (like Google Ads or Facebook Ads) are reporting costs in one currency but Google Analytics is reporting revenue in another, your ROAS calculation will be meaningless.
  • Average Order Value (AOV): This metric helps you understand customer purchasing behavior. An incorrect currency will either inflate or deflate your AOV, giving you a false impression of how much customers are spending per transaction.
  • E-commerce Conversion Rate: While not a direct monetary value, inaccurate revenue reporting can lead you to misinterpret the value driven by your conversion rate, potentially causing you to invest in a low-value channel.

Ultimately, a simple currency mismatch undermines the trust you have in your data, making it impossible to confidently measure growth, budget for campaigns, or prove the ROI of your marketing efforts.

First, Identify Your Google Analytics Version

Google has two main versions of its analytics platform, and the process for changing the currency is different for each. Before you start, you need to know which one you're using.

  • Universal Analytics (UA): If your property ID starts with "UA-" (e.g., UA-12345678-1), you are on the older version. While UA stopped processing new data in July 2023, many people still access it for historical reports. Settings here are managed at the "View" level.
  • Google Analytics 4: If your property ID is just a series of numbers (e.g., 123456789), you are using GA4. This is the current version of Google Analytics. Currency settings in GA4 are managed at the "Property" level and are primarily set within your website's tracking code.

Once you've confirmed your version, you can follow the appropriate steps below.

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How to Change Currency in Universal Analytics (UA)

In Universal Analytics, the currency setting is a simple display preference located within each reporting "View." Changing it is quick, but it's important to understand a major limitation: this change is not retroactive. It will only apply to data collected from the moment you make the change forward. Your historical data will not be converted.

Here’s how to do it:

Step-by-Step Instructions

  1. Log into your Google Analytics account.
  2. Click on Admin in the bottom-left corner (the gear icon).
  3. You’ll see three columns: Account, Property, and View. In the View column on the right, make sure you have the correct view selected.
  4. Click on View Settings, which is usually the first option in the list.
  5. Inside View Settings, look for the option labeled Currency displayed as. You’ll see a dropdown menu.
  6. Click the dropdown and select the desired currency (e.g., Euro, British Pound, Canadian Dollar).
  7. Scroll down and click the Save button.

What Happens to Your Data?

After saving, all new e-commerce data that flows into this View will assume the new currency you selected. For example, if you change your currency from USD to EUR, a transaction with a value of "100" that comes in tomorrow will be recorded as €100.

Be extremely cautious. The value "100" recorded yesterday is still treated as $100. If you try to run a report that includes dates both before and after the change, Google Analytics will add $100 and €100 together and display "200" units of the new currency, which is completely incorrect. To avoid this, it's best to analyze date ranges that are either entirely before or entirely after the currency change. We highly recommend adding an Annotation in the report interface on the date you made the change to remind yourself and your team.

How to Change Currency in Google Analytics 4

Google Analytics 4 handles currency differently and more robustly than its predecessor. Instead of being a simple display setting for an entire view, currency in GA4 is meant to be sent as part of the data for each specific financial event (like a purchase or refund). GA4 is designed from the ground up to support businesses that sell in multiple currencies.

There are two methods to manage currency in GA4, but the first one is the recommended best practice for all e-commerce sites.

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Method 1: Set the Currency in Your Tracking Code (Recommended)

The most accurate way to manage currency in GA4 is to specify the currency parameter directly within your e-commerce event tracking code on your website. This tells GA4 the exact currency of each individual transaction.

You or your web developer will need to ensure this parameter is included in every monetary Gtag or Google Tag Manager event. Here's what it looks like for a typical purchase event:

Example using gtag.js:

gtag('event', 'purchase', {
  transaction_id: 'ORDER-12345',
  value: 75.99,
  tax: 5.50,
  shipping: 4.50,
  currency: 'USD', // The currency code for this transaction
  items: [
    // Item details go here
  ]
}),

For Google Tag Manager (GTM):

When you configure your GA4 event tag in GTM, you'll see a field for "Currency Code" under the Event Parameters section. This is where you should insert a variable that dynamically pulls the currency for each transaction from your website's data layer.

Why is this the best method?

  • Accuracy: It attaches the currency directly to the transaction, leaving no room for ambiguity.
  • Flexibility: It allows you to track transactions in multiple currencies within a single GA4 property. If a customer in Canada buys in CAD and a customer in the U.S. buys in USD, GA4 will record both correctly. It then automatically converts currencies in reports to give you a consolidated view in your chosen default currency (see Method 2).
  • Reliability: This is a definitive command. The data sent from your website is what GA4 will record.

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Method 2: Set the Default Property Currency

GA4 also has a default currency setting at the property level. This setting acts as a fallback. GA4 will use this default currency only if a currency parameter is NOT provided with an event.

Here’s how to set your property's default currency:

  1. Log into your Google Analytics account.
  2. Click on Admin in the bottom-left corner.
  3. In the Property column, make sure you have the correct GA4 property selected.
  4. Click on Property Settings.
  5. In the Property Details screen, look for the Currency dropdown menu.
  6. Select your business's primary currency from the list (e.g., EUR, GBP, JPY).
  7. Click Save.

Remember, this setting only becomes a last resort. If your tracking code is consistently sending a currency parameter (as it should be), this property-level setting will primarily be used for reporting conversions and ensuring report totals are displayed in the currency of your choice.

Final Thoughts

Adjusting the currency in Google Analytics is crucial for accurate financial reporting, but the process and implications differ significantly between UA and GA4. For Universal Analytics, it's a simple setting change with a major warning about not affecting historical data. For GA4, the best practice is to configure your website's tracking code to send currency with every transaction, which provides much more accurate and flexible data.

Once your analytics data is correct, the next challenge is making it useful without spending hours building reports. At Graphed , we automate this entire process. We connect directly to your Google Analytics, Shopify, ad platforms, and CRM to bring all your data into one place. Simply ask a question in plain English, like "Show me my revenue and ROAS from Facebook Ads last month," and we instantly build a real-time dashboard for you, saving you from the manual work of platform-hopping and spreadsheet wrangling.

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