Iron Dome Explained: How It Works, Cost and Interception Rate

Iron Dome is Israel's short-range air defense system. It uses a radar to track incoming rockets, mortar rounds and drones, a computer to decide which ones threaten a protected area, and a Tamir interceptor to blow them up in flight. Each Tamir is estimated at $40,000 to $50,000. Rafael says the system has made more than 5,000 successful interceptions at a rate above 90%, though that rate is a company claim and has been argued over since 2012.

Here is how the three parts work together, what it costs to fire, what the combat record shows, and how the system fits with the other layers Israel and the United States have stacked around it. It also separates the Israeli system from the "Iron Dome for America" order that became Golden Dome.

How Does Iron Dome Work?

A battery is mobile, so Israel can shift it as threats change. It has three to four launchers, each holding up to 20 interceptors, plus a radar and a command center. CSIS puts the coverage of one battery at roughly 150 square kilometers, and Israel has at least 10 of them.

The radar. The ELM-2084 is a 3D radar built by Israel Aerospace Industries' ELTA division. It is an S-band active electronically scanned array that, according to its maker, can follow up to 1,100 targets at once. It also feeds interceptors with updates after launch and serves as the fire control radar for David's Sling.

The brain. The battle management center, built with the software firm mPrest, projects where each incoming object will land. This is the part that makes Iron Dome cheaper than it would otherwise be. If a rocket is heading for an empty field, the system lets it fall. Only threats aimed at a protected area get an interceptor. Human operators oversee the system, as the Congressional Research Service notes.

The interceptor. The Tamir is about 3 meters long, 16 centimeters wide and weighs 90 kilograms at launch. It steers with a command datalink and its own radar seeker, then detonates a blast-fragmentation warhead close to the target rather than hitting it head-on. Range is 4 to 70 kilometers, or 2.5 to 43 miles in CRS units. Israel also has a ship-based version, C-Dome, and the system picked up drone-killing ability in 2021.

What Does an Iron Dome Interceptor Cost?

The widely quoted figure is $40,000 to $50,000 per Tamir, which is what CSIS gives as the more recent estimate after an early guess of about $100,000. Official prices are rarely disclosed, so every number here is an outside estimate, and wartime surge production may cost more.

The cost matters because of what Iron Dome is shooting at. Many of the rockets it faces are crude and cheap, and each interception spends something far costlier than the threat. The comparison gets worse higher up. Israel's upper-tier interceptors run from hundreds of thousands to millions of dollars apiece, which is why Clash reported in 2025 that missile defense alone was costing Israel more than $200 million a day at the height of the 12-day war.

The laser row is the reason Iron Beam exists. At $2 to $4 a shot, a working laser would flip the economics, which is why Israel has pushed it so hard. Whether it can do that at scale is still an open question, covered below.

How Accurate Is Iron Dome? Claims Versus Independent Analysis

The headline figure comes from Rafael, which says Iron Dome has made over 5,000 successful interceptions with a success rate above 90%. CRS repeats it as Rafael's claim and does not endorse it. Israeli officials also reported about 85% in 2012 and about 90% in 2014 and 2021.

What the rate means. It is calculated against rockets the system chose to engage, which are the ones judged to threaten populated or sensitive areas. It does not count rockets that were ignored, and it does not say how many warheads were really destroyed. Israel has also declined to publish figures for the Oct. 7, 2023 attack, when militants fired several thousand rockets in a few hours.

The skeptics. MIT physicist Theodore Postol and colleagues studied amateur video of the 2012 fighting and concluded that the real rate was around 5%. Israel's INSS think tank answered that phone footage cannot show the geometry of an interception and that a double explosion would happen too fast to see. The system's own test data has not been made public.

A middle reading. Michael Armstrong of Brock University, using insurance damage claims, estimated that Iron Dome stopped 59% to 75% of all threatening rockets in 2014, anywhere in Israel, and judged the 92% claim for defended areas plausible. For 2012 he found less than 32%. His conclusion was that the early system's value may have been "largely symbolic" and that it later became very influential.

Iron Dome in Combat: 2011 to 2026

Iron Dome was declared operational in 2011. Israel's Defense Ministry now counts more than 10,000 operational interceptions over 15 years of service. The table below shows what each major test of the system produced and who is making the claim.

The Iran wars need a caveat. Iron Dome was not built for ballistic missiles, and the heaviest ballistic threats in the 2024, 2025 and 2026 barrages fell to Arrow, David's Sling and U.S. systems. The 12-day war also showed adaptation. According to JINSA data, the share of Iranian missiles getting through doubled from about 8% to 16% as Tehran changed launch sites and timing, and Israeli claims of 90% to 95% were later revised to 86%. Those figures describe the whole stack, not Iron Dome alone.

Iron Dome, David's Sling, Arrow and Iron Beam: How the Layers Fit

No Israeli system is meant to work alone. The CRS describes four layers, with U.S. systems now sitting alongside them, and each layer targets something the one below cannot handle.

Iron Dome covers rockets, mortars, artillery shells, drones and some cruise missiles at short range.

David's Sling handles heavier rockets and cruise missiles out to about 300 kilometers using the Stunner, a hit-to-kill interceptor with more maneuverability and a much higher unit cost. It entered service in 2017.

Arrow 2 and Arrow 3 go after ballistic missiles in the upper atmosphere and in space. Arrow 3 has been operational since 2017, and Germany bought it in a $4.3 billion deal.

Iron Beam is the laser. Israel's Defense Ministry said in December 2025 that it had been fielded, and a June 2026 test series included joint scenarios inside the Iron Dome command center. But the Israeli Air Force said in May 2026 that the laser saw limited use in the Iran war because the system needs 14 batteries to matter. In short, the laser exists and has been wired into the command system, but there are not yet enough of them.

U.S. systems now sit above and alongside all of this. A THAAD battery was sent in October 2024, and the U.S. used about a quarter of its THAAD missiles defending Israel in 2025. Washington is now reported to be moving a Patriot system from Texas to Israel, according to a Wall Street Journal report relayed by Clash.

Who Pays for Iron Dome? U.S. Funding and Golden Dome

Iron Dome was developed in Israel, but Washington has funded it since fiscal 2011. CRS counts more than $6 billion in U.S. support for batteries, interceptors, co-production and maintenance. A 2014 co-production agreement gave the Missile Defense Agency access to the technology. Raytheon and Rafael formed a joint venture, R2S, in 2020, and a 2023 testimony put the U.S. workshare at 30%.

The production line has now moved. On Oct. 8, 2026 the first fully American-built Tamir was delivered from a plant in East Camden, Arkansas, Israel's Defense Ministry said, the first factory outside Israel to make complete interceptors. Rafael's chief executive told the Jerusalem Post that the plant should reach about 1,000 interceptors a year for the United States and Israel. The U.S. Marine Corps, which is testing Iron Dome parts as a medium-range defense, reportedly bought 80 Tamirs in fiscal 2024. The Army's two batteries, bought for $373 million, were leased to Israel after Oct. 7.

Rafael is also trying to build in Europe. Clash reported in July that Qatar's investment authority had blocked a Volkswagen deal to make Iron Dome parts in Osnabrück. By September, according to the Jerusalem Post, Rafael had signed a letter of intent with Lower Saxony and Aurelius Capital to buy the plant itself.

Iron Dome is not Golden Dome. The "Iron Dome for America" in the name of a January 2025 executive order was a borrowed label. The order calls for a next-generation missile shield over the United States, including space-based interceptors, and it is a separate program. It was later renamed Golden Dome, and Clash has covered its reported $185 billion price and its software contractors. Israel's Iron Dome protects against short-range threats, while the American plan targets ballistic, hypersonic and cruise missiles aimed at the homeland.

Iron Dome FAQ

What is Iron Dome? A mobile, all-weather air defense system developed by Israel's Rafael, in service since 2011, that intercepts short-range rockets, mortar rounds, artillery shells, drones and some cruise missiles.

Who makes Iron Dome? Rafael is the prime contractor. IAI's ELTA division builds the radar, mPrest the command software, and RTX (Raytheon) co-produces the Tamir in the United States through R2S.

How much does one Iron Dome interceptor cost? Most estimates fall between $40,000 and $50,000 per Tamir, with earlier figures near $100,000. These are outside estimates, not official prices.

Can Iron Dome stop ballistic missiles from Iran? Not by design. Those threats are assigned to Arrow, David's Sling and U.S. systems such as THAAD and Patriot, with Iron Dome handling the shorter-range part of a mixed attack.

What is its interception rate? Rafael claims above 90%. Independent estimates for 2012 range from roughly 5% to under 32%, and from 59% to 75% for all threatening rockets in 2014. No outside party has full access to the data.

Does the United States have Iron Dome? Yes. The Army bought two batteries and later leased them to Israel, and the Marine Corps is testing parts of the system. A separate American homeland shield, first called Iron Dome for America, is now called Golden Dome.

This explainer uses figures from CSIS, the Congressional Research Service, Israel's Defense Ministry and press reports, and will be updated as new numbers come out.