Exchange rates move every day. You can’t predict them perfectly, but a quick look at an exchange rate history chart tells you whether today’s rate is unusually good, unusually bad, or about average — which is often all you need to decide when to convert.
What the timeframes tell you
- 7-day — short-term noise; useful for “is today better than this week?”
- 30-day — the sweet spot for most decisions; shows the recent trend without overreacting.
- 60-day — broader context; helps you see whether a move is a blip or a real shift.
Reading a trend without overthinking it
You don’t need to be a trader. Three simple checks:
- Direction — is the line generally rising or falling for your pair?
- Position — is today near the top, middle or bottom of the range?
- Volatility — is it calm or jumping around? Calm means today’s rate is a fair bet.
If today sits near the better end of a 30-day range, it’s often a reasonable moment to convert. If it’s at the worse end and you can wait, a rate alert can watch for a rebound.
See the chart anywhere
Currencies has built-in history charts for any pair (7, 30, 60 days) plus a chart widget for your home screen — so the trend is always one glance away.
Frequently asked questions
Can charts predict exchange rates?
No tool predicts rates reliably. Charts show context — whether today is good or bad relative to recent history.
Which timeframe should I use?
The 30-day view suits most everyday decisions; use 60-day for broader context.
Where can I see rate history on iPhone?
Currencies shows 7/30/60-day charts in-app and as a home-screen widget.