UPDATE

Steem.Cards has added a new section to the website. Utilizing a widget from Coin Maket Cap, we have added a widget which allows customers to see the current price of Steem and SBD price compared to USD. Unfortunately, this solution does not have a calculator yet, but it gives you an opportunity to do the math before shopping. I have not added Euros or GPB yet. I'm working with Coin Market Cap to get an actual calculator. Please understand that this conversion is for information purposes only.

DISCLAIMER
There will be a slight variation +/- 2% when purchasing because the formula we use calculates USD to Steem/SBD to BTC

I hope this helps streamline your shopping experience at STEEM.CARDS