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Currency strength at a glance

Compare currencies, commodities and interest rates using official published data.

Reference data based on official publications · Not real-time prices

Market board (TradingView charts) Gold ETFs (members)

Frequency & definition
ECB daily reference rates (each working day, published around 16:00 CET)
Observation date
Retrieved at

Comparison window

Comparison: → (vs 5 observation(s) earlier, counted in ECB publication dates, not calendar days)

Currency strength index (pt)

Relative log change against an equally weighted basket of 8 currencies (index points), calculated by this site from ECB reference rates. It is not a trading signal.

  1. JPY Japanese yen +1.17 pt
  2. GBP British pound +0.67 pt
  3. USD US dollar +0.55 pt
  4. EUR Euro −0.15 pt
  5. CHF Swiss franc −0.49 pt
  6. CAD Canadian dollar −0.49 pt
  7. NZD New Zealand dollar −0.56 pt
  8. AUD Australian dollar −0.70 pt

Bar scale: ±2.00 pt

Pair returns (%)

Change of row currency (base) against column currency (quote), e.g. row EUR, column USD is EUR/USD. Crosses are calculated from ECB reference rates of the same observation date and are not tradable prices.

The table scrolls horizontally.

Currency pair change (vs 5 observation(s) earlier, %)
Row currency / column currencyUSDEURJPYGBPAUDCADCHFNZD
USD Same currency +0.61% −0.55% −0.11% +1.10% +0.91% +0.91% +0.97%
EUR −0.61% Same currency −1.15% −0.71% +0.48% +0.30% +0.30% +0.36%
JPY +0.55% +1.17% Same currency +0.44% +1.65% +1.47% +1.47% +1.53%
GBP +0.11% +0.72% −0.44% Same currency +1.20% +1.02% +1.02% +1.08%
AUD −1.08% −0.48% −1.63% −1.19% Same currency −0.18% −0.18% −0.12%
CAD −0.90% −0.30% −1.45% −1.01% +0.18% Same currency 0.00% +0.06%
CHF −0.90% −0.30% −1.45% −1.01% +0.18% 0.00% Same currency +0.06%
NZD −0.96% −0.36% −1.51% −1.07% +0.12% −0.06% −0.06% Same currency
  • −0.75% or lower
  • Above −0.75% to −0.25%
  • Within ±0.25%
  • +0.25% to below +0.75%
  • +0.75% or higher

Band widths are fixed for the 5-observation comparison. Each cell also shows the number and sign, so colour is not needed to read it.

Worked example (EUR/USD)

EUR/USD moved from 1.13670 to 1.12980, a change of −0.607%. The inverse, USD/EUR, changed +0.611%, which is not simply the negative.

ECB reference rates used

Units of each currency per 1 euro (as published by the ECB). EUR is 1.

ECB reference rates used
Currency Per 1 EUR on Per 1 EUR on
USD US dollar 1.1298 1.1367
JPY Japanese yen 178.4900 180.5700
GBP British pound 0.8537 0.8599
AUD Australian dollar 1.6255 1.6177
CAD Canadian dollar 1.6095 1.6047
CHF Swiss franc 0.9437 0.9409
NZD New Zealand dollar 2.0121 2.0049

Methodology and sources

Read the method, timing rules and caveats

This page uses the ECB euro foreign exchange reference rates (units of each currency per 1 euro). They are reference values published each working day around 16:00 CET, not intraday movements or tradable prices.

The basket is USD, EUR, JPY, GBP, AUD, CAD, CHF and NZD with equal weights. The value V of each currency is expressed in US dollars per unit and derived from ECB rates of the same observation date (V[USD]=1, V[EUR]=the USD rate).

Vc = rateUSD / ratec   (VUSD = 1, VEUR = rateUSD)

S[c] = 100 / 7 × Σd≠c ( ln(Vc,end / Vc,start) − ln(Vd,end / Vd,start) )

The strength index is the average log-return difference multiplied by 100, in index points; it is not a literal basket percentage return. Pair returns are true percentages from this formula:

100 × ( (Vrow,end / Vcol,end) / (Vrow,start / Vcol,start) − 1 )

Opposite cells are computed from reciprocal prices, so they are not exact negatives of each other.

A comparison uses the latest observation date with all 8 currencies and the complete observation date exactly N complete dates earlier (N = 1, 5, 20). Because holidays are skipped, this is not the same as 1 day, 1 week or 1 month. Missing dates are never filled with earlier values.

Guide for "Awaiting update" (a heuristic of this site, not an official publication calendar): FX and bond yields more than 10 calendar days after the latest observation date, policy rates more than 21 calendar days, monthly commodity prices when the reference month is 3 or more months ago. If retrieval has not succeeded for 48 hours or more, this is shown separately regardless of the observation date. Market holidays are not determined.

Source: European Central Bank (opens in a new tab) (euro foreign exchange reference rates). The currency strength index and pair changes are calculated by this site (Tokubaku) from ECB reference rates and are not ECB publications. Terms: Terms of use (opens in a new tab)

This is not investment solicitation or advice.