Merchant Shipping Losses, Allied

 

British Allied
& Neutral
Total U-Boats Commissioned U-Boat
Losses
1914 248,194 64,478 312,672 11 5
August 44,692 18,075 72,767 3 2
September 89,251 9,127 98,375 3 -
October 78,088 9,829 87,917 1 -
November 9,348 10,065 19,413 2 1
December 26,815 17,382 44,197 2 2
           
1915 879,851 428,145 1,307,996 52 20
January 32,276 15,705 47,981 2 2
February 36,372 23,549 59,921 4 -
March 71,768 9,007 80,775 7 3
April 24,383 31,342 55,725 6 1
May 89,673 30,385 120,058 8 1
June 91,315 40,113 131,428 6 3
July 57,274 52,366 109,640 5 2
August 151,354 34,512 185,866 2 3
September 102,135 49,749 151,884 2 2
October 54,156 34,378 88,534 2 1
November 94,655 58,388 153,043 2 2
December 74,490 48,651 123,141 6 -
           
1916 1,251,416 1,075,910 2,327,326 108 22
January 62,645 18,614 81,259 3 -
February 75,928 41,619 117,547 5 -
March 99,696 67,401 167,097 9 2
April 141,409 50,258 191,667 8 3
May 64,722 64,453 129,175 9 2
June 36,976 71,879 108,855 8 1
July 85,228 32,987 118,215 9 3
August 45,026 117,718 162,744 10 2
September 109,263 121,197 230,460 10 1
October 177,386 176,274 353,660 12 -
November 170,409 141,099 311,508 13 5
December 182,728 172,411 355,139 12 3
           
1917 3,751,529 2,484,349 6,235,878 100 65
January 155,686 212,835 368,521 10 2
February 316,964 223,042 540,006 4 5
March 357,064 236,777 593,841 5 4
April 551,202 329,825 881,027 5 1
May 353,737 242,892 596,629 5 8
June 419,267 268,240 687,507 8 1
July 367,594 190,394 557,988 11 7
August 333,052 181,678 511,730 20 5
September 196,457 155,291 351,748 8 11
October 276,359 182,199 458,558 13 5
November 173,647 115,565 289,212 5 8
December 253,500 145,611 399,111 6 8
           
1918 1,699,743 967,199 2,666,942 88 90
January 180,348 126,310 306,658 3 10
February 227,582 91,375 318,957 6 2
March 199,751 142,846 342,597 9 6
April 215,784 62,935 278,719 9 8
May 192,938 102,582 295,520 11 15
June 163,629 91,958 255,587 9 3
July 166,004 130,963 296,967 9 6
August 147,257 136,558 283,815 8 9
September 137,001 50,880 187,881 10 8
October 59,229 59,330 118,559 12 20
November 10,220 7,462 17,682 2 3
           
TOTAL 7,830,733 5,050,081 12,850,814 359 202

 

Source: John Ellis & Michael Cox, The World War I Databook; U-Boat.net.