exchange rate

US /ɪksˈtʃeɪndʒ reɪt/
UK /ɪksˈtʃeɪndʒ reɪt/
"exchange rate" picture
1.

the value of one currency for the purpose of conversion to another

:
The exchange rate between the dollar and the euro fluctuates daily.
Always check the current exchange rate before converting money.