The timeline, casualty incidents and the Lebanon front, recorded day by day while the air war was underway. Cost figures here are as they stood at the time.
While the air war was underway, this page ran a live counter: the Pentagon's $11.3B for the first six days, then $1 billion a day, a preliminary rate relayed by congressional officials in early March. It stopped at $113.3B on June 16.
Official accounting has since come in far lower: $33.4B through June 29 (DoD Inspector General), $38.1B through August 1 (CBO) and $43.6B through September 3 (Pentagon). The cost figures below are kept as they were recorded at the time; for the current estimate and what it leaves out, see the homepage.
This is a separate bill from the military cost: what consumers paid above a no-war price path.
Researchers at Brown University's Climate Solutions Lab are tracking the total consumer burden — gasoline and diesel — with a state-by-state breakdown and per-household estimates versus a no-war price trajectory.
Figures as of Sep 7, 2026 (about $770 per household; the live tracker is higher). See live totals, a state-by-state map, and per-household estimates →
→ See the Iran War Energy Cost Tracker ↗
Independent research · Watson Institute, Brown University
per gallon (regular) — up $1.45 since the conflict began
In the first week of March the national average jumped nearly 27 cents, AAA's fastest weekly increase since Russia's invasion of Ukraine, as the war closed the Strait of Hormuz, through which 20% of the world's daily oil moves. Prices stayed high: September 2026 averaged $4.33, a record for the month.
Source: AAA Gas Prices · AAA Newsroom, Mar 2026 · AAA, Oct 1 2026
Official figure: CBO puts air- and missile-defense interceptors at $13.1B through August 1, the largest piece of $21.7B in munitions. The early-March estimates below ran far higher than the official accounting.
Jennifer Kavanagh of Defense Priorities estimates the U.S. "easily" spent more than $10 billion on air-defense systems in the first 48 hours. Iran launched 2,000+ drones and 500+ ballistic missiles (CSIS). CSIS separately estimates interceptor costs at $1.2B–$3.7B for the first 100 hours.
Source: NYT DealBook, Mar 4, 2026 (Niko Gallogly)
Since then: CBO says the U.S. has used between half and two-thirds of certain interceptor inventories across the 2025 and 2026 conflicts, and that rebuilding them will take at least five years.
In June 2025's 12-day war, the U.S. expended up to 30% of its THAAD stockpile and 80 SM-3s. Production cannot keep pace: even at quadrupled rates, replacing 150 THAAD interceptors takes nearly 5 months.
At sustained conflict consumption, the entire U.S. interceptor stockpile could be exhausted in 4–5 weeks — creating vulnerabilities for NATO, Ukraine, Taiwan, and Japan, all of which depend on U.S. defense supplies.
Source: Military Times, Mar 6, 2026
Updated Oct 13, 2026. The early-March figures and the $1B/day rate this page once used predate any official accounting.
This page is the log the tracker kept in real time while the air war was underway. Its running counter, built on an early $1 billion/day estimate, has been retired in favor of the official tallies. See the current estimate and the revision note.