Moody's chief economist Mark Zandi on Monday shared his estimate of how the Iran war will affect ordinary Americans, warning that high energy costs, military spending, and elevated interest rates are the main factors driving up expenses.

In a post on the social media platform X, Zandi pointed out that according to his calculations, since the Iran conflict broke out in February, the cost borne by each American household has surged to nearly $2,000.

Citing data from Moody's Analytics, Zandi said: "Nationwide, this spending totals as much as $265 billion."

Zandi noted that "rising energy prices" are the main factor driving up household expenses. "The average gasoline price is $4.37 per gallon, compared with less than $3 before the war; diesel prices have exceeded $6, and jet fuel prices have nearly doubled." He added that higher home heating fuel prices have also pushed up the cost of living.

It is worth noting that the national average gasoline price fell by 40 cents on Monday, but GasBuddy analyst Patrick De Haan warned that the decline may not last.

Zandi said: "All told, each household is spending nearly $1,100 more for this 鈥?both directly at the gas pump and through higher prices for all kinds of other goods caused by rising truck and air transport costs." He added that at current fuel prices, energy spending rises by an extra $50 per week.

Zandi also pointed out: "The inflation triggered by the war contributed to the Federal Reserve's rate hike decision last month and signaled further rate increases ahead." After the rate hike decision, mortgage costs soared to 7.5%.

Zandi said: "By our estimates, the cost to the economy from higher interest rates is equivalent to about $540 per household."

Zandi also noted that military spending has added $360 to each household's burden. He said: "Taken together, the cost of the war offsets about half of the average increase in U.S. household income over the past eight months." He added that these factors together explain why the war is unpopular with the public.