The current bank exchange rates for the ZWL$ today are as follows;

USD = ZWL$15.7376
ZWL$ = RAND0.9427
Data according to the Reserve Bank of Zimbabwe

Black Market Rates:

USD = ZWL$19.90 zimrates
USD = ZWL$19.70 zwl365
USD = ZWL$19.5 bluemari
USD = BOND12.90 zimrates

– Marketwatch