> ## Documentation Index
> Fetch the complete documentation index at: https://docs.costory.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Cloud Cost Currency Conversion

> Cloud cost currency conversion and reporting currency rules for AWS, GCP, Azure, and Datadog in Costory.

Cloud cost currency conversion lets you compare AWS, GCP, Azure, and Datadog spend in a single reporting currency. Costory normalizes each provider's billing export and applies the appropriate exchange-rate policy for that source.

<Frame caption="Cloud cost currency conversion lets you compare AWS, GCP, Azure, and Datadog spend in a single reporting currency.">
  <img src="https://mintcdn.com/costory/qj_U6tQ--cB5HewE/images/currency.gif?s=172a7bee6a54269045b6338a16646588" alt="Cloud cost currency conversion lets you compare AWS, GCP, Azure, and Datadog spend in a single reporting currency." width="764" height="480" data-path="images/currency.gif" />
</Frame>

## Supported currencies

Costory supports the following reporting currencies today:

* USD
* EUR
* GBP

<Note>
  Need another currency? Contact Costory support and we will confirm coverage and timing.
</Note>

## Set your reporting currency in Costory

<Steps>
  <Step title="Open Settings">
    In Costory, open <strong>Settings</strong> for your organization.
  </Step>

  <Step title="Choose a reporting currency">
    Select <strong>Reporting currency</strong> and choose USD, EUR, or GBP.
  </Step>

  <Step title="Save and refresh reports">
    Newly processed data, dashboards, and exports will use the selected currency.
  </Step>
</Steps>

## Provider-specific conversion rules

| Provider | How the provider sets currency/rate                                                                               | Shared in export?                                                                                                                                    | How Costory handles conversion                                                                                                                                                                                                                         |
| -------- | ----------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| AWS      | AWS converts USD totals to your preferred currency using the exchange rate in effect when the invoice is created. | No. <Tooltip tip="AWS's detailed billing export." cta="See Glossary" href="/docs/glossary#cur">CUR</Tooltip> 2.0 does not include the currency rate. | During the month (before the invoice is finalized), Costory uses an estimated exchange rate from public data sources ([Google Finance](https://www.google.com/finance/)). At the end of the month, Costory uses the exchange rate at the invoice date. |
| GCP      | The exchange rate is set at the beginning of the month and stays constant for the whole month.                    | Yes. GCP includes the currency rate in the billing export.                                                                                           | Costory uses the provided monthly exchange rate directly.                                                                                                                                                                                              |
| Azure    | Azure provides both billing currency and pricing currency, which implies a conversion rate.                       | Yes, indirectly. The rate is inferred from billing and pricing currency values in the export.                                                        | Costory uses the inferred currency rate directly.                                                                                                                                                                                                      |
| Datadog  | Usage is billed in USD.                                                                                           | No explicit conversion rate in the usage export.                                                                                                     | Costory uses an estimated exchange rate from public data sources ([Google Finance](https://www.google.com/finance/)).                                                                                                                                  |

## FAQ

<AccordionGroup>
  <Accordion title="When does the exchange rate update?">
    For providers that include a rate in the export (GCP and Azure), Costory
    follows the provider cadence. For AWS and Datadog, Costory refreshes
    estimated rates as new billing data is ingested, and AWS rates are finalized
    to the invoice-date rate once the invoice closes.
  </Accordion>

  <Accordion title="How accurate is the estimated rate?">
    Estimated rates come from Google Finance and are intended for directional
    reporting. The final AWS invoice rate can differ.
  </Accordion>
</AccordionGroup>

## Related pages

* [Cost Metrics](/docs/cost-metrics)