Grafana itself doesn't provide a direct way to convert currency. You can use Grafana's Transformations or mathematical functions to perform the currency conversion.
For example, if 1 USD=82 INR, you can multiply the metric with 82 to convert it to INR.
USE Transform section of Panel editor..
I hope this will help you out!
Thank you AJIT KUMAR UPADHYAY for reading and your question.