The US Dollar Strength Index measures the US dollar against a trade-weighted basket of six major world currencies. A rising value means the dollar is strengthening against the basket; a falling value means it is weakening. It is recalculated every 15 minutes from live mid-market rates.
The index is the weighted geometric average of the dollar against six currencies, using the same basket and weights as the well-known dollar index:
| Euro (EUR) | 57.6% |
| Japanese yen (JPY) | 13.6% |
| Pound sterling (GBP) | 11.9% |
| Canadian dollar (CAD) | 9.1% |
| Swedish krona (SEK) | 4.2% |
| Swiss franc (CHF) | 3.6% |
The index is set to 100 as of March 1973. It is computed by fxrate.io from our own live rates — it is not affiliated with ICE and is not the official ICE U.S. Dollar Index / DXY®.