How Do You Measure Volatility For Any Currency Pair? Is there Any Website/Indicator?

Few years ago USDCHF is the most volatile pair,then it's GBPUSD...recently I see EURUSD becomes volatile...

now...today...I think USDJPY is the most volatile...

Besides the majors EurJpy And GbpJpy are volatile too...

as volatility always changes how do you measure volatility?

thanks!

Depends on what you mean by volatility. The conventional wisdom is that volatility is the amount of pips a pair moves during a period. If that's what you're referring to, the GBPJPY and GBPCHF pairs are king.

The way that's usually measured is thru an indicator called ATR, or average true range. Use a 7 period ATR on the daily and you'll see what I mean.