TV
The best place for this to be suggested is http://www.wolframalpha.com/ ... since DDG use their API to convert currencies between. such as

1 BTC to USD
posted by TV 4 years and 7 months ago Link

zac
The Wolfram API response is a bit slow for things like this so any other sources are probably just as good.
Someone's working on bitcoin instant answer but we're trying to resolve an internal bug that's preventing it from going live: https://github.com/duckduckgo/zeroclicki...
posted by zac Staff4 years and 7 months ago Link
TV
I will take a look at it.
posted by TV 4 years and 7 months ago Link