Currency Strength Meter

What a currency strength meter actually shows

A currency pair is a ratio of two economies. When EUR/USD rises you cannot tell, from the pair alone, whether the euro got stronger, the dollar got weaker, or both. A currency strength meter strips that ambiguity out. It scores each currency on its own by aggregating how it moved against all the others, so you can see the single currency that is leading and the single currency that is lagging.

The meter above tracks the eight majors: the US dollar, euro, British pound, Japanese yen, Swiss franc, Canadian dollar, Australian dollar and New Zealand dollar. For each one it measures the average percentage move against the rest of the basket over your chosen window, then ranks them strongest to weakest. A reading of +0.80% means that currency outperformed the average of the others by roughly that much over the period. A negative reading means it underperformed.

How to use it to pick pairs

The core idea is simple: buy strength and sell weakness. If you trade a strong currency against a weak one, both legs of the pair are pushing in your favour. If you accidentally buy one strong currency against another strong currency, the two cancel out and you sit in a pair that grinds sideways while something else runs. That is the most common reason a "good" trade goes nowhere.

• Pair the extremes. The top-ranked currency against the bottom-ranked currency is usually the cleanest trending candidate, because the gap between them is widest.
• Avoid the middle. Two currencies sitting near each other in the ranking will tend to chop. There is no strength gradient to ride.
• Check the timeframe that matches your hold. A day trader cares about the 24-hour read; a swing trader cares more about the 7 and 30-day picture. Use the toggle to see whether the short-term and longer-term reads agree. When they do, the move has more behind it.

What it does not tell you

Strength is a filter, not a signal. It tells you which side of a trade has the wind behind it, but it will not give you an entry, a stop or a target. A currency can be the strongest in the basket and still be overextended and due a pullback. Treat the meter as the first question ("which pairs are worth my attention?") and your own chart, levels and risk plan as the second.

It is also a relative measure. Every score is calculated against the other seven currencies, so the whole board shifts when one currency makes a large move. If the dollar drops sharply on a soft inflation print, everything else looks stronger by comparison even if nothing changed for those currencies on their own. Read the ranking, not just the absolute number.

Finally, this free version is built from daily closing rates and refreshes hourly. It is ideal for orientation and pair selection. It is not a substitute for an intraday meter when you are timing an entry to the minute.

How this meter is calculated

For each currency we take its value now and its value at the start of the window, work out the percentage change, and then average that change against every other currency in the basket. We re-centre the whole set against the basket average so the number reflects relative strength rather than just movement against the dollar. The result is a clean, comparable score per currency on the 24-hour, 7-day and 30-day windows.