The Ledger · Entry 32
The world's nuclear arsenals are far smaller than at their peak
Estimated nuclear warheads in the world's combined inventories
Data: Our World in Data, based on the Federation of American Scientists
At the height of the Cold War, in 1986, the world's nuclear powers held 70,374 warheads between them, enough to end civilization many times over. The number had climbed almost without pause for four decades.
The key rows
Then, as the Cold War ended, arms-control treaties and the dismantling of Soviet and American stockpiles brought it down hard, to about 12,187 by 2026, roughly a sixth of the peak. This is genuine progress, with an honest catch: the decline has stalled since the late 2010s, several states are now expanding or modernizing their arsenals, and the warheads that remain are more than enough for catastrophe.
Asked often
How many nuclear weapons are there in the world?
About 12,187 warheads in 2026, down from a Cold War peak of 70,374 in 1986. The reductions came mainly from US and Russian stockpile cuts after the Cold War.
Are nuclear arsenals still shrinking?
The long decline has stalled since the late 2010s. Several countries are now expanding or modernizing their arsenals, so the total has roughly leveled off well above zero.
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