cross currency exchange rate feature


I have idea maybe strange but I think is good to compare three currencies.
Let me explain. now is a pair or currencies GBP-EUR etc…

but my idea is to compare conversion three

ie example I live in Czech Republic where national currency is CZK and have USD but want buy EUR

so this should looks like USD100->3000CZK->80EUR

I want exchange USD to EUR but I have rate from my local exchange office pairs USD -CZK and CZK -EUR this tools can give me knowledge what is better to use revolut or local exchange office. I suppose revolut will be competitive but this might be helpful to calculate.