In the us how much is a Hong Kong 20 dollar bill worth?

As of my last update in September 2021, the exchange rate between the Hong Kong dollar (HKD) and the US dollar (USD) was approximately HKD 7.80 to USD 1. Therefore, a Hong Kong 20 dollar bill would be worth approximately USD 2.56 at that time. However, please note that currency exchange rates can fluctuate over time, so the current value may be different. To obtain the most up-to-date exchange rate information, I recommend using a currency converter or checking with a reputable currency exchange service.