Hungary, 1946: the fastest recorded inflation

Hungary's hyperinflation in 1945 and 1946 is often considered the fastest documented. In its final phase, prices doubled in less than one day.

The episode ended on August 1, 1946, with the introduction of the forint.

An economy destroyed by war

Hungary left World War II with severe physical damage, lost productive capacity, goods shortages, and reparation obligations.

The fiscal system was weak, and the government struggled to collect enough revenue. Money creation financed spending and credit.

The number of pengős increased while the supply of products remained limited.

From rising prices to the collapse of the unit

As the pengő lost value, people reduced the time they held money. Prices were updated constantly, and demand for higher-denomination banknotes grew.

The process moved faster than Germany's 1923 hyperinflation.

Widely used records estimate July 1946 monthly inflation at about 4.19 × 10^16%. This was equivalent to prices doubling about every 15 hours.

These figures require caution. Any price index faces enormous measurement problems when prices change several times each day.

Banknotes with extreme numbers

Hungary issued a 100,000,000,000,000,000,000 pengő banknote, or one hundred quintillion in the American short scale. In the Spanish long scale, this amount is cien trillones.

The denomination was written in words to make it manageable. It still lost usefulness in a short time.

Auxiliary units such as the adópengő were also used. The adópengő was first designed for taxation and indexation, but its value also deteriorated.

Why adding zeros solves nothing

Larger banknotes reduce the number of pieces needed for payment, but they do not stabilize the unit.

When prices rise faster than production and faster than cash can be printed and distributed, every new denomination has a very short useful life.

Hyperinflation turns banknote design into a race against lost value.

Introducing the forint

Hungary introduced the forint on August 1, 1946.

The reform formed part of a broader program that included:

Budget adjustment.
Tax reform.
Control of issuance.
Reorganization of prices and wages.
Use of reserves and assets to strengthen confidence.

The nominal conversion between the pengő and forint reached an extraordinary scale. Historical sources commonly state it as one forint per 4 × 10^29 pengős.

More important than the number was the new system's ability to stop accelerating money creation and restore a usable unit.

The forint as the new reference

The Magyar Nemzeti Bank confirms that the forint system began on August 1, 1946. The first banknotes of the new currency remained in use for decades with limited changes.

Initial success did not mean that Hungary would never experience inflation again. It meant that hyperinflation had ended and the currency could perform its basic functions again.

Comparison with Germany and Zimbabwe

The three episodes share several elements:

Deficits financed through money creation.
Lost confidence.
Replacement of the local currency in everyday decisions.
Issuance of larger denominations.

Their specific causes differed. Germany was shaped by the postwar crisis after 1918 and the reparations conflict. Hungary faced the destruction of 1945. Zimbabwe experienced a production and fiscal crisis in a different context.

One explanation should not be applied to every case.