荷蘭1元對香港how much?20~!

你可參考這個website, 有齊worldwide 的daily貨幣對換.
http://www.x-rates.com/d/EUR/table.html

以下是holland 的 tourism official site:
http://www.holland.com/global/
http://www.holland.com/global/practical/financial/

Currency

Holland is one of the fifteen (2008) Euro countries. Although each country gives out its own Euro coins, all coins and bills are valid in all Euro countries. There are eight coins (1, 2, 5, 10, 20 and 50 Euro cents, 1 and 2 Euro) and seven bills (5, 10, 20, 50, 100, 200 and 500 Euros). Some countries and stores no longer use the 1 and 2 euro cents coins. Most stores don't accept the 200 and 500 Euro bills.

但要留意200及500元歐羅紙幣, 1及2 euro cents coin在holland並不通行. 所以你在香港對換時要留意.

荷蘭用歐元
so, 歐元 1 = HK$ 9.8276 (28/2)