The U.S. military has exhausted 850 Tomahawk missiles in four weeks, raising concerns that stockpiles may run out within 135 days.

The Washington Post reported that during the past four weeks of the Iran war, the United States has used over 850 Tomahawk missiles, "which has raised concerns among some Pentagon officials due to the limited supply of this weapon."

The report states: "These missiles can be launched from naval surface ships and submarines, and have been a primary attack weapon for the U.S. military since first being deployed in combat during the 1991 Gulf War. However, only a few hundred are produced annually, meaning global supply is limited. The Pentagon has never publicly disclosed the quantity of its missile stockpile."

From this report, we can roughly calculate:

Each Tomahawk missile costs $2.5 million to manufacture. Raytheon's BGM-109 model ranges in price from $1.3 million to $3.6 million per unit, depending on the model, upgrade level, and contract year.

Assuming an average cost of $2.5 million per missile: 850 × $2.5 million ≈ $2.2 billion.

The production cycle for Tomahawk missiles spans 18 to 24 months.

The U.S. produces approximately 75 missiles per year, typically below 100. Raytheon announced plans to accelerate Tomahawk production, and under optimal conditions, maximum annual capacity could reach around 600–700 units. Even with such increased output, consumption is still 3 to 4 times faster than production.

Trump has already personally instructed defense contractors.

Prolonged high-intensity conflict rapidly depletes high-energy munitions—whether the Tomahawk has delivered results commensurate with its price tag is now the real question.

Before the Iran war began, the U.S. estimated it had 4,000 Tomahawk missiles; within 30 days, it had consumed between one-fifth and one-quarter of that stock. Defense budget and spending may soon be unsustainable.

Modern warfare is thus so costly and fast-paced.

At the current production rate, the U.S. will exhaust its entire Tomahawk inventory in just 135 days.

Iran still has a long way to go.