π¬π§ British Pound (GBP) Strength Index
Data updated: September 23, 2026
As of September 23, 2026, the British Pound ranks #6 of 16 major currencies by 12-month performance. Over the past year GBP has strengthened by 0.2% against a basket of 15 major currencies.
Adjusted for consumer-price inflation, the real buying power of the British Pound fell by 1.1% over the same period.
Key figures
Open the interactive GBP chart β
GBP vs major currencies β 12 months
Positive values mean GBP strengthened against that currency over the past 12 months.
How is the index calculated?
The index starts at 100 and accumulates the daily change of each currency against the 15 others, using a geometric mean of pairwise exchange-rate moves. Exchange rates come from the European Central Bank and other official sources and are updated every trading day. The real index additionally adjusts each currency for its domestic CPI inflation.
Read the full methodology βFrequently asked questions
Is the British Pound getting stronger or weaker?
Over the past 12 months the British Pound strengthened by 0.2% against a basket of 15 major currencies, ranking #6 of 16.
What is the strongest currency right now?
Measured over the past 12 months, Australian Dollar (AUD) currently leads the index, up 9.7%.
What does the real (inflation-adjusted) index show?
The real index adjusts each currency for its domestic consumer-price inflation. A currency can look stable in exchange-rate terms while losing buying power at home β the real index reveals that difference.
How often is the data updated?
Every trading day (Monday to Friday), after the European Central Bank publishes its reference rates, usually around 16:00 CET.