The war on Iran cost the US $12.7bn by day six. Now, the total is likely to have exceeded $18bn and counting.

 

The war on Iran cost the US $12.7bn by day six. Now, the total is likely to have exceeded $18bn and counting.

As of March 2026, the ongoing war with Iran has reached significant financial milestones, with estimates varying based on the cost factors included.

 

Initial Six-Day Cost:

The Pentagon reportedly briefed lawmakers that unbudgeted costs for the first six days of the conflict (beginning February 28, 2026) exceeded $11.3 billion.

The Center for Strategic and International Studies (CSIS) calculated a more comprehensive "cumulative cost" of $12.7 billion for that same period.

 

Current Total Estimates:

By March 19, 2026, total costs were estimated to have exceeded $18 billion.

White House National Economic Council Director Kevin Hassett stated earlier on March 15 that the price tag was approximately $12 billion at that time.

Daily operational costs are estimated at roughly $890 million to $1 billion per day.

 

Key Cost Drivers:

Munitions: High-expenditure items include Patriot interceptor missiles (approx. $4 million each) and Tomahawk cruise missiles ($2.5 million each).

Asset Losses: The U.S. has lost an estimated $2.55 billion in equipment, including several F-15 fighter jets and sophisticated radar systems.

Operational Scale: Naval operations, featuring two aircraft carriers (the USS Gerald R. Ford and USS Abraham Lincoln), cost about $15 million per day.

Future Funding:

The Pentagon is reportedly preparing to request a supplemental funding package from Congress exceeding $200 billion to sustain the open-ended conflict.