Iran Nuclear Status — Enrichment & Breakout Timeline
Iran's nuclear program has been significantly impacted by Operation Epic Fury strikes but not eliminated. As of October 2, 2026, the last IAEA estimate of Iran's stock is 440.9kg of 60%-enriched uranium (a pre-war figure from June 2025 — not a post-strike measurement), enough for approximately 10 weapons if further enriched to 90% weapon-grade. The IAEA has had no verification access to the enrichment sites since 28 February 2026, apart from one inspection at Bushehr in June. The dashboard's post-strike breakout figure of 12 weeks is its own March 2026 estimate and has not been revised, because there is no new verified evidence to revise it with.
Nuclear Facility Damage Assessment
| Facility | Type | Depth | Damage | Post-Strike Status |
|---|---|---|---|---|
| Natanz FEP | Enrichment (main) | 8m underground | 75% | Severely damaged |
| Natanz R&D | Advanced centrifuge R&D | Surface | 95% | Destroyed |
| Fordow (FFEP) | Enrichment (hardened) | 80m underground | 30% | Partially damaged |
| Isfahan UCF | Uranium conversion | Surface | 90% | Destroyed |
| Arak IR-40 | Heavy water reactor | Surface | 60% | Heavily damaged |
| Parchin | Weaponization R&D | Tunnels | 50% | Damaged |
| Saghand Mine | Uranium mining | N/A | Not struck | Intact |
| Suspected covert site | Unknown | Unknown | Not struck | Unknown |
| Pickaxe Mountain (Kuh-e Kolang Gaz La) | Suspected deep centrifuge/storage site | Deep mountain tunnels | Not struck | Not struck (as of 1 Oct 2026) |
| Bushehr NPP | Power reactor (Russian-built) | Surface | 5% | Auxiliary building hit |
| Darkhovin NPP | Under-construction power plant | Surface | 0% | Claimed hit |
| Ardakan yellowcake plant | Uranium ore concentrate | Surface | 0% | Damaged |
Breakout Timeline Estimates
| Scenario | Time | Confidence | Detail |
|---|---|---|---|
| Pre-strike baseline | 2 weeks | HIGH | Dashboard working estimate (not a named assessment) for pre-Feb 27. For reference, ISPI (citing Tehran sources, Oct 2025) said 90% could be reached 'in a matter of weeks' from the 441 kg stockpile with IR-4/IR-6 centrifuges (Wikipedia). |
| Post-strike (current) | 12 weeks | MEDIUM | Dashboard working estimate, last revised March 2026 — NOT a named assessment. IAEA (Sep 2026) cannot verify stockpile, centrifuges or enrichment status, so no sourced post-strike breakout figure exists; Natanz underground halls remained intact per IAEA (3 Mar) though entrances were damaged (Wikipedia). |
| Full reconstitution | 26 weeks | LOW | Dashboard working estimate (unsourced, Mar 2026). Would require a covert site; CSIS satellite analysis (Sep 2026) found a 'clear surge' in construction and record road activity at Pickaxe Mountain; Iran denies nuclear activity there (GlobalSecurity). |
| Covert surge (Fordow) | 3 weeks | MEDIUM | Dashboard working estimate (unsourced, Mar 2026). Note IAEA DG Grossi said in Sep 2025 that Fordow lost 'almost all' sensitive equipment in the June 2025 US strike (Wikipedia); no verification of Fordow since. Satellite imagery (CNN/ISIS, July) suggested possible reconstruction at Parchin Taleghan 2 and truck activity at Pickaxe Mountain (GlobalSecurity). |
IAEA Access Status
The IAEA has had no verification access to Iran's enrichment sites since 28 February 2026; the only activity since was a single inspection at the Bushehr power plant in June. The agency says it cannot verify the stockpile, the centrifuge inventory or whether enrichment is suspended. On 24 June Director General Grossi said inspections of enrichment sites “are going to happen”; Iran says any visit would come only within a final agreement.
Key Nuclear Assessments
- Natanz FEP: Main enrichment plant severely damaged (75%). 6,000+ IR-1 centrifuges destroyed. Above-ground halls collapsed.
- Fordow FFEP: Deep mountain bunker only 30% damaged. GBU-57 MOPs caused tunnel collapses but core facility may be intact. This is the greatest proliferation risk.
- Stockpile status: 440.9kg at 60% is the IAEA's pre-war estimate (June 2025). More than 200kg of it is believed, but not verified, to survive at Isfahan and Natanz. Total-stockpile figures on the dashboard are unverified estimates.
- Weapon-grade threshold: 42kg of 90%-enriched HEU needed for one device. The pre-war 440.9kg at 60% would be enough for ~10 weapons if it survives and were further enriched.
Frequently Asked Questions
How close is Iran to a nuclear weapon?
Nobody outside Iran can say with confidence. The dashboard's 12-week post-strike figure is its own estimate from March 2026, not a named intelligence assessment. The IAEA's last stockpile estimate (440.9kg at 60%, June 2025) predates the war, the weapon-grade threshold is 90% enrichment with 42kg needed per device, and the agency has had no access to the enrichment sites since 28 February 2026.
What happened to Iran's nuclear facilities?
Natanz main enrichment plant: 75% damaged, 6,000+ centrifuges destroyed. Natanz R&D: 95% destroyed. Fordow deep bunker: only 30% damaged — core facility may be intact. Isfahan conversion: 90% destroyed. Arak reactor: 60% damaged. Parchin: 50% damaged.
Can the IAEA monitor Iran's nuclear program?
Not at the enrichment sites. The IAEA has had no verification access there since 28 February 2026; its only activity since was one inspection at Bushehr in June. It cannot verify strike damage, stockpile status or whether enrichment is suspended. Iran says inspections would resume only under a final agreement.
How much enriched uranium does Iran have?
440.9kg at 60% enrichment is the IAEA's last estimate, dating from June 2025 before the war. The agency has not been able to verify the stockpile since 28 February 2026; more than 200kg of the 60% material is believed, but not verified, to survive at Isfahan and Natanz. Total-stockpile figures shown on the dashboard are unverified estimates.
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