Iran Ramped Up Uranium Enrichment Before Strikes by U.S., Israel

Iran’s uranium stockpile by level of enrichment (kilograms)

Experts say uranium enriched at 60 percent can quickly be made into “weapons-grade” uranium, and only a few dozen kilograms is required for a weapon. The IAEA has been unable to verify the status of Iran’s stockpile since the U.S. and Israeli strikes in June 2025.