# How to derive appropriate volatility for a binary option (with strike/term) from market data?

I am valuing a binary FX option (european) with a defined strike and term (2Y). I'm using a closed form solution based on Black-Scholes framework. How can I derive the appropriate volatility to use from the market data I have?

Market Data (all quoted in implied volatility):

ATM
25D Risk Reversal
25D Butterfly
10D Risk Reversal