On December 17, in Vietnam, the black market US dollar buy rate was VND 26,900 and the sell rate was VND 26,950, a change of 0 and 50, respectively, for a mid-market rate of VND 26,925 (down 0.09 percent), according to Ty Gia USD.
Meanwhile, the State Bank of Vietnam’s central exchange rate was set at VND 25,146, while the Google Finance mid-market rate stood at VND 26,332.
The spread between the SBV’s central exchange rate and black-market mid-market rates was VND 1,779 or 7.07 percent.
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Vietnam exchange rates, 17 December 2025
| 17 Dec | 16 Dec | Change | % | |
| Black Market: Mid-market | 26,925 | 26,950 | -25 | -0.09% |
| SBV: Central Exchange Rate | 25,146 | 25,141 | 5 | 0.02% |
| Google Finance: Mid Market Rate | 26,332 | 26,342 | -10 | -0.04% |
| Black Market: Buy | 26,900 | 26,900 | 0 | 0.00% |
| Black Market: Sell | 26,950 | 27,000 | -50 | -0.19% |
| Spread: SBV / Black Market MM | 1,779 | 1,809 | -30 | -1.66% |
| Spread: SBV / Black Market MM | 7.07% | 7.20% | – | – |