Nuclear Stockpiles: United States, warheads and megatonnage, various estimates

compiled by Wm. Robert Johnston
last modified 26 November 2007

See Cumulative estimates, introduction for explanation and sources.


yearUNITED STATES
warheadsmegatons
(WRJ)(NRDC 2006)(NRDC 2000)(NRDC 1995)(NRDC 1989)(NRDC 1984)(WRJ)(NRDC 1998)(DOE 1994)(NRDC 1989)
19452622220.040.040.040.04
194691199990.180.180.180.25
19471332131313130.260.260.260.40
194856110565050501.251.251.252
19491692351691702502504.194.194.1920
19502983692982993504509.539.539.5377
195143864043843865065035.2535.2535.25100
19528321,0058328411,0001,00049.9549.9549.95130
19531,1611,4361,1611,1691,3501,35072.8072.8072.80150
19541,6302,0631,6301,7031,9501,750339.01339.01339.01385
19552,2803,0572,2802,4222,6002,2502,879.992,879.992,879.992,820
19563,6204,6183,6203,6923,7503,5509,188.659,188.659,188.659,150
19575,8286,4445,8285,5435,4005,45017,545.8617,545.8617,545.8616,300
19587,4029,8227,4027,3457,5007,10017,303.5417,303.5417,303.5416,100
195912,30515,46812,30512,29811,70012,00019,054.6219,054.6219,054.6217,800
196018,63820,43418,63818,63818,70018,50020,491.1720,491.1720,491.1719,000
196122,22924,12622,22922,22923,20023,00010,947.7110,947.7110,947.7110,300
196227,10027,38727,10025,31727,10026,50012,825.0212,82512,825.0212,200
196329,80029,45929,80029,30029,80029,00015,977.1715,97715,977.1714,800
196431,60031,05631,60030,81731,60031,00016,943.9716,94416,943.9715,800
196532,40031,98232,40032,40032,40031,50015,152.5015,15315,152.5014,100
196632,45032,04032,45032,47232,45031,50014,037.4614,03714,037.4613,100
196732,50031,23332,50032,51632,50032,00012,786.1712,78612,786.1711,900
196830,70029,22430,70030,85830,70031,00011,837.6511,83811,837.6511,000
196928,20027,34228,20028,49728,20029,00011,714.4411,71411,714.4410,900
197026,60026,66226,60026,78026,60027,0009,695.209,6959,695.209,100
197126,50026,95626,50026,50626,50027,0008,584.408,5848,584.408,000
197227,00027,91227,00027,00027,00027,5008,531.518,5328,531.518,000
197328,40028,99928,40028,25028,40028,5008,452.008,4528,452.007,900
197429,10028,96529,10028,95029,10029,0008,325.228,4258,325.227,800
197528,10027,82628,10027,95028,10028,5007,368.387,3587,368.386,800
197626,70025,57926,70026,55226,70027,5005,935.515,9365,935.515,600
197725,80025,72225,80025,77525,80026,0005,845.005,8455,845.005,500
197824,60024,82624,60024,67724,60025,5005,721.165,7215,721.165,400
197924,30024,60524,30024,30024,30025,0005,696.345,6965,696.345,300
198024,30024,30424,30024,30024,30025,0005,618.865,6195,618.865,300
198123,40023,46423,40023,40023,40025,0005,382.915,3835,382.915,100
198223,00023,70823,00023,20023,00025,0005,358.895,3595,358.895,000
198323,40024,09923,40023,40023,40026,0005,232.475,2325,232.474,900
198423,60024,35723,60023,80023,600 5,192.205,1925,192.204,900
198523,50024,23723,50023,70023,500 5,217.485,2175,217.485,100
198623,40024,40123,40023,50023,400 5,414.545,4155,414.544,600
198723,70024,34423,70023,70023,700 4,882.144,8824,882.144,500
198823,40023,58623,40023,40023,400 4,789.774,7904,789.774,500
198922,70022,38022,50022,50022,500 4,743.344,7434,743.34 
199021,80021,00421,00021,445  4,518.914,5194,518.91 
199120,40017,28719,50019,445  3,795.943,7963,795.94 
199218,70014,74718,20014,300  3,167.883,1683,167.88 
199317,00013,07616,75011,900  2,647.312,6472,647.31 
199415,50012,55515,38011,100  2,375.302,3752,375.30 
199514,10012,14414,00011,000  2,1602,363  
199612,90011,00912,900   1,9802,336  
199711,70010,95012,425   1,790   
199810,80010,87111,425   1,660   
199910,70010,82410,925   1,640   
200010,60010,57710,500   1,620   
200110,50010,527    1,610   
200210,50010,475    1,610   
200310,40010,421    1,590   
200410,40010,358    1,590   
200510,30010,295    1,580   
200610,10010,104    1,550   
20079,9009,938    1,520   
20089,200     1,410   
20098,500     1,300   
20107,700     1,180   
20116,900     1,060   
20126,0005,467    920   


© 1995-2006, 2007 by Wm. Robert Johnston.
Last modified 26 November 2007.
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