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What a dollar buys, and where it moved

A dollar income is earned in one currency and spent in another. These are the reference rates that decide the difference, updated every morning, with the dated series kept rather than quoted.

Daily reading

Eight lines, twelve destinations

Every line is quoted as units per dollar, sterling and the euro included, so a rise always means the same thing: a dollar income that goes further.

Loading the reference series.

Percent change is the change in what one dollar buys, before local inflation. A currency can weaken against the dollar while local prices rise faster, so a gain here is not automatically a gain in real terms. For an oil exporter a higher crude price tends to firm the local currency, which works against a dollar income.

How to read it

Why eight currency lines and not a list of countries.

Retirees in several countries share one currency, so eight lines cover about twelve destinations. One euro line carries Portugal, Spain, Italy and Greece. Panama, Ecuador and El Salvador use the dollar, so they carry no currency risk at all and appear as the comparison point rather than a chart.

Every line is quoted as units per dollar, sterling and the euro included, even though a trading screen quotes those two the other way round. One orientation means one reading: a rise is always a dollar that goes further. The figure is nominal, before local inflation, and a currency can weaken against the dollar while local prices rise faster.

Oil cuts both ways. For an exporter a higher crude price tends to firm the local currency, which works against a dollar income. For an importer it lands on local prices and utility bills instead. Each currency card carries its position.

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