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

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.

year UNITED STATES

warheads megatons
(WRJ) (NRDC 2006) (NRDC 2000) (NRDC 1995) (NRDC 1989) (NRDC 1984) (WRJ) (NRDC 1998) (DOE 1994) (NRDC 1989)

1945 2 6 2 2 2 2 0.04 0.04 0.04 0.04

1946 9 11 9 9 9 9 0.18 0.18 0.18 0.25

1947 13 32 13 13 13 13 0.26 0.26 0.26 0.40

1948 56 110 56 50 50 50 1.25 1.25 1.25 2

1949 169 235 169 170 250 250 4.19 4.19 4.19 20

1950 298 369 298 299 350 450 9.53 9.53 9.53 77

1951 438 640 438 438 650 650 35.25 35.25 35.25 100

1952 832 1,005 832 841 1,000 1,000 49.95 49.95 49.95 130

1953 1,161 1,436 1,161 1,169 1,350 1,350 72.80 72.80 72.80 150

1954 1,630 2,063 1,630 1,703 1,950 1,750 339.01 339.01 339.01 385

1955 2,280 3,057 2,280 2,422 2,600 2,250 2,879.99 2,879.99 2,879.99 2,820

1956 3,620 4,618 3,620 3,692 3,750 3,550 9,188.65 9,188.65 9,188.65 9,150

1957 5,828 6,444 5,828 5,543 5,400 5,450 17,545.86 17,545.86 17,545.86 16,300

1958 7,402 9,822 7,402 7,345 7,500 7,100 17,303.54 17,303.54 17,303.54 16,100

1959 12,305 15,468 12,305 12,298 11,700 12,000 19,054.62 19,054.62 19,054.62 17,800

1960 18,638 20,434 18,638 18,638 18,700 18,500 20,491.17 20,491.17 20,491.17 19,000

1961 22,229 24,126 22,229 22,229 23,200 23,000 10,947.71 10,947.71 10,947.71 10,300

1962 27,100 27,387 27,100 25,317 27,100 26,500 12,825.02 12,825 12,825.02 12,200

1963 29,800 29,459 29,800 29,300 29,800 29,000 15,977.17 15,977 15,977.17 14,800

1964 31,600 31,056 31,600 30,817 31,600 31,000 16,943.97 16,944 16,943.97 15,800

1965 32,400 31,982 32,400 32,400 32,400 31,500 15,152.50 15,153 15,152.50 14,100

1966 32,450 32,040 32,450 32,472 32,450 31,500 14,037.46 14,037 14,037.46 13,100

1967 32,500 31,233 32,500 32,516 32,500 32,000 12,786.17 12,786 12,786.17 11,900

1968 30,700 29,224 30,700 30,858 30,700 31,000 11,837.65 11,838 11,837.65 11,000

1969 28,200 27,342 28,200 28,497 28,200 29,000 11,714.44 11,714 11,714.44 10,900

1970 26,600 26,662 26,600 26,780 26,600 27,000 9,695.20 9,695 9,695.20 9,100

1971 26,500 26,956 26,500 26,506 26,500 27,000 8,584.40 8,584 8,584.40 8,000

1972 27,000 27,912 27,000 27,000 27,000 27,500 8,531.51 8,532 8,531.51 8,000

1973 28,400 28,999 28,400 28,250 28,400 28,500 8,452.00 8,452 8,452.00 7,900

1974 29,100 28,965 29,100 28,950 29,100 29,000 8,325.22 8,425 8,325.22 7,800

1975 28,100 27,826 28,100 27,950 28,100 28,500 7,368.38 7,358 7,368.38 6,800

1976 26,700 25,579 26,700 26,552 26,700 27,500 5,935.51 5,936 5,935.51 5,600

1977 25,800 25,722 25,800 25,775 25,800 26,000 5,845.00 5,845 5,845.00 5,500

1978 24,600 24,826 24,600 24,677 24,600 25,500 5,721.16 5,721 5,721.16 5,400

1979 24,300 24,605 24,300 24,300 24,300 25,000 5,696.34 5,696 5,696.34 5,300

1980 24,300 24,304 24,300 24,300 24,300 25,000 5,618.86 5,619 5,618.86 5,300

1981 23,400 23,464 23,400 23,400 23,400 25,000 5,382.91 5,383 5,382.91 5,100

1982 23,000 23,708 23,000 23,200 23,000 25,000 5,358.89 5,359 5,358.89 5,000

1983 23,400 24,099 23,400 23,400 23,400 26,000 5,232.47 5,232 5,232.47 4,900

1984 23,600 24,357 23,600 23,800 23,600 5,192.20 5,192 5,192.20 4,900

1985 23,500 24,237 23,500 23,700 23,500 5,217.48 5,217 5,217.48 5,100

1986 23,400 24,401 23,400 23,500 23,400 5,414.54 5,415 5,414.54 4,600

1987 23,700 24,344 23,700 23,700 23,700 4,882.14 4,882 4,882.14 4,500

1988 23,400 23,586 23,400 23,400 23,400 4,789.77 4,790 4,789.77 4,500

1989 22,700 22,380 22,500 22,500 22,500 4,743.34 4,743 4,743.34

1990 21,800 21,004 21,000 21,445 4,518.91 4,519 4,518.91

1991 20,400 17,287 19,500 19,445 3,795.94 3,796 3,795.94

1992 18,700 14,747 18,200 14,300 3,167.88 3,168 3,167.88

1993 17,000 13,076 16,750 11,900 2,647.31 2,647 2,647.31

1994 15,500 12,555 15,380 11,100 2,375.30 2,375 2,375.30

1995 14,100 12,144 14,000 11,000 2,160 2,363

1996 12,900 11,009 12,900 1,980 2,336

1997 11,700 10,950 12,425 1,790

1998 10,800 10,871 11,425 1,660

1999 10,700 10,824 10,925 1,640

2000 10,600 10,577 10,500 1,620

2001 10,500 10,527 1,610

2002 10,500 10,475 1,610

2003 10,400 10,421 1,590

2004 10,400 10,358 1,590

2005 10,300 10,295 1,580

2006 10,100 10,104 1,550

2007 9,900 9,938 1,520

2008 9,200 1,410

2009 8,500 1,300

2010 7,700 1,180

2011 6,900 1,060

2012 6,000 5,467 920

year	UNITED STATES
	warheads						megatons
	(WRJ)	(NRDC 2006)	(NRDC 2000)	(NRDC 1995)	(NRDC 1989)	(NRDC 1984)	(WRJ)	(NRDC 1998)	(DOE 1994)	(NRDC 1989)
1945	2	6	2	2	2	2	0.04	0.04	0.04	0.04
1946	9	11	9	9	9	9	0.18	0.18	0.18	0.25
1947	13	32	13	13	13	13	0.26	0.26	0.26	0.40
1948	56	110	56	50	50	50	1.25	1.25	1.25	2
1949	169	235	169	170	250	250	4.19	4.19	4.19	20
1950	298	369	298	299	350	450	9.53	9.53	9.53	77
1951	438	640	438	438	650	650	35.25	35.25	35.25	100
1952	832	1,005	832	841	1,000	1,000	49.95	49.95	49.95	130
1953	1,161	1,436	1,161	1,169	1,350	1,350	72.80	72.80	72.80	150
1954	1,630	2,063	1,630	1,703	1,950	1,750	339.01	339.01	339.01	385
1955	2,280	3,057	2,280	2,422	2,600	2,250	2,879.99	2,879.99	2,879.99	2,820
1956	3,620	4,618	3,620	3,692	3,750	3,550	9,188.65	9,188.65	9,188.65	9,150
1957	5,828	6,444	5,828	5,543	5,400	5,450	17,545.86	17,545.86	17,545.86	16,300
1958	7,402	9,822	7,402	7,345	7,500	7,100	17,303.54	17,303.54	17,303.54	16,100
1959	12,305	15,468	12,305	12,298	11,700	12,000	19,054.62	19,054.62	19,054.62	17,800
1960	18,638	20,434	18,638	18,638	18,700	18,500	20,491.17	20,491.17	20,491.17	19,000
1961	22,229	24,126	22,229	22,229	23,200	23,000	10,947.71	10,947.71	10,947.71	10,300
1962	27,100	27,387	27,100	25,317	27,100	26,500	12,825.02	12,825	12,825.02	12,200
1963	29,800	29,459	29,800	29,300	29,800	29,000	15,977.17	15,977	15,977.17	14,800
1964	31,600	31,056	31,600	30,817	31,600	31,000	16,943.97	16,944	16,943.97	15,800
1965	32,400	31,982	32,400	32,400	32,400	31,500	15,152.50	15,153	15,152.50	14,100
1966	32,450	32,040	32,450	32,472	32,450	31,500	14,037.46	14,037	14,037.46	13,100
1967	32,500	31,233	32,500	32,516	32,500	32,000	12,786.17	12,786	12,786.17	11,900
1968	30,700	29,224	30,700	30,858	30,700	31,000	11,837.65	11,838	11,837.65	11,000
1969	28,200	27,342	28,200	28,497	28,200	29,000	11,714.44	11,714	11,714.44	10,900
1970	26,600	26,662	26,600	26,780	26,600	27,000	9,695.20	9,695	9,695.20	9,100
1971	26,500	26,956	26,500	26,506	26,500	27,000	8,584.40	8,584	8,584.40	8,000
1972	27,000	27,912	27,000	27,000	27,000	27,500	8,531.51	8,532	8,531.51	8,000
1973	28,400	28,999	28,400	28,250	28,400	28,500	8,452.00	8,452	8,452.00	7,900
1974	29,100	28,965	29,100	28,950	29,100	29,000	8,325.22	8,425	8,325.22	7,800
1975	28,100	27,826	28,100	27,950	28,100	28,500	7,368.38	7,358	7,368.38	6,800
1976	26,700	25,579	26,700	26,552	26,700	27,500	5,935.51	5,936	5,935.51	5,600
1977	25,800	25,722	25,800	25,775	25,800	26,000	5,845.00	5,845	5,845.00	5,500
1978	24,600	24,826	24,600	24,677	24,600	25,500	5,721.16	5,721	5,721.16	5,400
1979	24,300	24,605	24,300	24,300	24,300	25,000	5,696.34	5,696	5,696.34	5,300
1980	24,300	24,304	24,300	24,300	24,300	25,000	5,618.86	5,619	5,618.86	5,300
1981	23,400	23,464	23,400	23,400	23,400	25,000	5,382.91	5,383	5,382.91	5,100
1982	23,000	23,708	23,000	23,200	23,000	25,000	5,358.89	5,359	5,358.89	5,000
1983	23,400	24,099	23,400	23,400	23,400	26,000	5,232.47	5,232	5,232.47	4,900
1984	23,600	24,357	23,600	23,800	23,600		5,192.20	5,192	5,192.20	4,900
1985	23,500	24,237	23,500	23,700	23,500		5,217.48	5,217	5,217.48	5,100
1986	23,400	24,401	23,400	23,500	23,400		5,414.54	5,415	5,414.54	4,600
1987	23,700	24,344	23,700	23,700	23,700		4,882.14	4,882	4,882.14	4,500
1988	23,400	23,586	23,400	23,400	23,400		4,789.77	4,790	4,789.77	4,500
1989	22,700	22,380	22,500	22,500	22,500		4,743.34	4,743	4,743.34
1990	21,800	21,004	21,000	21,445			4,518.91	4,519	4,518.91
1991	20,400	17,287	19,500	19,445			3,795.94	3,796	3,795.94
1992	18,700	14,747	18,200	14,300			3,167.88	3,168	3,167.88
1993	17,000	13,076	16,750	11,900			2,647.31	2,647	2,647.31
1994	15,500	12,555	15,380	11,100			2,375.30	2,375	2,375.30
1995	14,100	12,144	14,000	11,000			2,160	2,363
1996	12,900	11,009	12,900				1,980	2,336
1997	11,700	10,950	12,425				1,790
1998	10,800	10,871	11,425				1,660
1999	10,700	10,824	10,925				1,640
2000	10,600	10,577	10,500				1,620
2001	10,500	10,527					1,610
2002	10,500	10,475					1,610
2003	10,400	10,421					1,590
2004	10,400	10,358					1,590
2005	10,300	10,295					1,580
2006	10,100	10,104					1,550
2007	9,900	9,938					1,520
2008	9,200						1,410
2009	8,500						1,300
2010	7,700						1,180
2011	6,900						1,060
2012	6,000	5,467					920