Strait of Hormuz Economic Impact Calculator
20% of the world's oil — 21 million barrels per day — flows through the Strait of Hormuz. What happens to the global economy if Iran shuts it down?
Global GDP Loss
$105.0B
30 × $3.5B/day
Oil Price
$123/bbl
Was $60 pre-war
US Gas Price
$4.40/gal
+$0.60 from today
Shipping Costs
+30%
Global freight rates
Projected Oil Price Over 30 Days
30 Days of Hormuz Closure ($105.0B) Could Instead Pay For:
Methodology
This calculator uses conservative estimates based on publicly available data. Approximately 21 million barrels of oil transit the Strait of Hormuz daily — roughly 20% of global supply. Pre-war oil prices were approximately $60/barrel; they surged to $108 after the Iran conflict began.
The GDP loss estimate of $3.5 billion per day is a midpoint of the $2–5 billion range cited by energy economists. Oil price projections assume approximately $0.50 per barrel increase per day of closure, and US gas prices rise roughly $0.02 per gallon per day. Actual impacts would depend on strategic reserves, alternative routes, and market panic factors.