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Here’s How Much the War with Iran Is Expected to Cost Every Day

CSIS reports the war costs $891.4 million daily with air, naval, and ground operations as top expenses; costs may drop with less expensive munitions, the think tank says.

  • On Saturday, CSIS released an early estimate that the first 100 hours of the U.S.-Iran war cost $3.7 billion after U.S. forces struck Iran early Saturday morning.
  • Uncertainty over the operation's length has arisen as the U.S. Department of Defense has not published a cost estimate nor requested supplemental funding, with varying timeline options of two, four and six weeks, Congress included.
  • CSIS found the war costs about $891.4 million daily, with air, naval and ground operations as main expenses, ground operations costing $1.6 million daily.
  • Analysts project steep costs if operations intensify, with a two-month war estimated between $40 and $95 billion, said Kent Smetters, faculty director, Penn Wharton Budget Model.
  • Compared with June 2025's Operation Midnight Hammer, which cost less despite large bombs and stealth bombers, Costs of War estimated last year’s strikes at $2.04 to $2.26 billion, while the Iraq war cost almost $3 trillion.
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33 Articles

Lean Right

The ongoing war with Iran is exacting a heavy economic toll on the US. Reports indicate that the US has spent approximately $3.7 billion in the first 100 hours of the war. To counter Iran's low-cost drone attacks, the US is forced to deploy extremely expensive missile systems, rapidly increasing the cost of the war.

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Center

The US has spent at least $3.7 billion in the first 100 hours of the war against Iran, which means nearly $900 million per day, according to an independent analysis by the Centre for Strategic and International Studies (CSIS), called the EEE wines, according to Agerpres.

·Romania
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Center

The "Epic Fury" operation against Iran, launched only a few days ago, burns Washington's financial reserves at an alarming rate. The bill is also very substantial for Israel According to the information reported by BFM Business, the US military commitment to Iran has taken on a huge financial dimension. In just 100 hours of intervention, the bill already amounts to 3.7 billion dollars, or an average of 891 million dollars a day. This amount, rev…

·France
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BFM TV broke the news in France on Thursday, March 5, 2026.
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