My analysis of Hungary’s 1945–46 hyperinflation was the worst ever recorded. The government’s uncontrolled money printing to cover massive post-war deficits caused prices to double every 15 hours and rendered the pengő practically worthless. I used the Hanke–Krus Hyperinflation Table to document how the pengő collapsed to the point of transactions requiring denominations in the trillions of trillions, forcing the creation of temporary accounting units that also failed.