I need to currency rate by currency code in magento 2.

$currency =  $objectManager->get('Magento\Framework\Pricing\PriceCurrencyInterface');
$currencySymbol = $currency->getRate('USD');

I tried above code it returns fatal error.


I reckon you should use Magento\Directory\Model\Currency class instead of Magento\Framework\Pricing\PriceCurrencyInterface.

On top of that, I suggest you never use the object manager directly and use dependency injection instead.

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