A browser based Bitcoin calculator should cover that pretty easily. Paybis has one that lets you enter the BTC amount and convert it to a fiat value, so it’s useful when you’re dealing with several different amounts and don’t want to repeat the calculation manually. You can find it here: Paybis. I’d use it mainly for quick estimates, since the Bitcoin price is constantly moving and the figure shown by a calculator can differ from the eventual rate you receive in an actual transaction. If you need an exact transaction amount, check the final quote and fees separately.