Hungary's pengo peaked at a monthly inflation rate of 4.19x10^16% (41.9 quadrillion percent) in July 1946 — prices doubled roughly every 15 hours. This is the highest hyperinflation episode ever documented, exceeding both Zimbabwe (2008, ~7.96x10^10% peak monthly) and Weimar Germany (1923). It is a settled historical fact with no staleness risk.
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Hungary's pengo peaked at a monthly inflation rate of 4.19x10^16% (41.9 quadrillion percent) in July 1946 — prices doubled roughly every 15 hours. This is the highest hyperinflation episode ever documented, exceeding both Zimbabwe (2008, ~7.96x10^10% peak monthly) and Weimar Germany (1923). It is a settled historical fact with no staleness risk.
The highest peak monthly inflation rate ever recorded for a national currency, per the Hanke-Krus World Hyperinflation Table.
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Limits Registry. LR-HYPERINFLATION-RECORD. Highest recorded hyperinflation rate. 2026.