I’ve been in the same boat, and it can definitely get confusing. I highly recommend FXConvert
https://fxconvert.net/ . They have an excellent currency calculator that makes it easy to convert between most global currencies. For example, if you’re converting yen to pounds or any other pair, you just enter the amount, and it gives you the exact conversion rate and amount. The site updates rates daily, ensuring you always get the most accurate info. It’s been a real game-changer for me. Check it out and see how it works for you!