As an X role in a company if you make 10k per month in India, then working for the same company as X in US, you will likely make 60k.
This is mostly based on salaries info that i have but it gives me a good yardstick for mental models. This also conveniently fits with exchange rate which fluctuates between 55 to 70 INR = 1 USD.
By this yardstick, throw pillow that would be $30 USD will be around $5 (Rs. 300) in India, subject to local revisions.
I mostly use this when I need to roughly calculate how much money I should take with me while traveling.