I'm planning to visit Kiev Ukraine in May, I have the airline tickets and a place to stay,?

I'm going for 19 day's, I'm not sure about the exchange currency rate, I don't plan on going crazy, But would about $2,500 hundred US dollars be enough spending money to have a decent time, After exchanging the $2,500 to Ukrainian currency, What would it be compared to in US terms of cash, Please help????