426:
440:
31:
414:. One acre-foot is approximately equivalent to 1.233 megaliters. Large bodies of water may be measured in cubic kilometers (1,000,000,000 m, or 1000 gigaliter), with 1 million acre-feet approximately equalling 1.233 km.
492:
This conversion assumes the international foot is used to define the U.S. gallon and the U.S. survey foot to define the acre foot. If the same foot is used for both, the result is the
669:
359:
is followed and often enforced, a typical family uses only about 0.25 acre-foot of water per year. One acre-foot/year is approximately 119 cu ft/d (3.38 m/d).
1180:
651:
355:
in US water management, one acre-foot is taken to be the planned annual water usage of a suburban family household. In some areas of the desert
Southwest, where
563:
644:
1159:
600:
536:
637:
239:(i.e. 66 ft × 660 ft or 20.12 m × 201.17 m), an acre-foot is 43,560 cubic feet (1,233.5 m).
463:
178:
598:
242:
There are two definitions of an acre-foot (differing by about 0.0006%), depending on whether the "foot" used is an
46:
660:
468:
1154:
599:
Planning
Division, Planning & Land Use Department, City of Santa Fe, New Mexico (February 2001).
601:"Water Use in Santa Fe: A survey of residential and commercial water use in the Santa Fe urban area"
1185:
570:
186:
1047:
453:
367:
683:
458:
243:
212:, 82 ft (25 m) long, 52 ft (16 m) wide and 9.8 ft (3 m) deep.
1123:
1073:
594:
366:
has been used historically in the US in many water-management agreements, for example the
8:
1139:
1113:
1098:
473:
540:
1149:
1144:
356:
51:
604:
247:
1042:
942:
285:
157:
629:
1118:
1078:
947:
431:
194:
1174:
1021:
983:
917:
399:
352:
209:
1093:
1068:
978:
963:
897:
733:
718:
445:
232:
1108:
1088:
968:
902:
876:
835:
771:
761:
756:
751:
703:
698:
693:
515:
The state of
Montana assumes 1.0 acre-foot per year for a family of five.
407:
275:
225:
106:
1103:
1083:
1052:
1026:
871:
840:
830:
809:
804:
799:
794:
713:
202:
198:
123:
425:
998:
881:
411:
309:
182:
140:
993:
825:
561:
220:
As the name suggests, an acre-foot is defined as the volume of one
1016:
723:
439:
236:
912:
855:
174:
380: acre⋅ft/a (590 m/s) among seven western US states.
973:
850:
403:
402:
is in common use and water volumes are normally expressed in
190:
30:
907:
845:
766:
728:
708:
688:
383:
Water reservoir capacities in the US are commonly given in
221:
988:
609:
597:
rate averages 0.25 acre-foot per year per household. See
562:
Water Rights Bureau; state of
Montana (13 April 2004).
170:
181:
in reference to large-scale water resources, such as
421:
1181:
Customary units of measurement in the United States
659:
177:equal to about 1,233 m commonly used in the
1172:
208:An acre-foot equals approximately an eight-lane
645:
398:In most other countries except the US, the
652:
638:
564:"Form No. 627 R8/03 Notice of Water Right"
29:
35:An acre-foot volume (not drawn to scale)
506:U.S. gal figure as obtained previously.
259:= 43,560 cubic feet = 75,271,680 cu in
1173:
633:
670:Comparison with imperial unit system
479:
464:List of unusual units of measurement
340:≈ 325,853.383688 U.S. gal
333:≈ 271,329.700571 imp gal
13:
267:= 43,560 international cubic feet
224:of surface area to a depth of one
14:
1197:
1160:Foot–pound–second system of units
438:
424:
319:= 43,560 U.S. survey cubic feet
588:
555:
529:
509:
486:
346:
231:Since an acre is defined as a
215:
1:
661:United States customary units
469:United States customary units
522:
7:
417:
10:
1204:
1053:Kilopounds per square inch
1155:English Engineering Units
1132:
1061:
1035:
1009:
956:
935:
890:
864:
818:
787:
780:
744:
676:
667:
264:1 international acre-foot
146:
129:
112:
95:
91:
73:
65:
57:
45:
40:
28:
23:
1062:Other units and measures
316:1 U.S. survey acre-foot
1048:Pounds per square inch
454:Cubic meter per second
385:thousands of acre-feet
368:Colorado River Compact
284:≈ 271,328.072596
684:Thousandth of an inch
459:Cubic foot per second
16:Non-SI unit of volume
1124:Ton of refrigeration
1074:British thermal unit
595:Santa Fe, New Mexico
326:≈ 1233.4892384681 m
274:= 1,233.48183754752
244:"international foot"
1140:American wire gauge
1114:Pound-foot (torque)
1099:Foot-pound (energy)
543:on 14 November 2005
474:Unit of measurement
86:... is equal to ...
41:General information
1150:Body jewelry sizes
1145:Avoirdupois system
576:on 25 January 2008
370:, which divides 15
364:acre-foot per year
357:water conservation
248:"U.S. survey foot"
154:
148:
137:
133:US customary units
131:
120:
116:US customary units
114:
103:
97:
52:US Customary units
1168:
1167:
931:
930:
537:"NM OSE Glossary"
480:Explanatory notes
344:
343:
163:
162:
74:Conversions
1193:
785:
784:
654:
647:
640:
631:
630:
624:
623:
621:
619:
613:
603:. Archived from
592:
586:
585:
583:
581:
575:
569:. Archived from
568:
559:
553:
552:
550:
548:
539:. Archived from
533:
516:
513:
507:
505:
504:
500:
497:
490:
448:
443:
442:
434:
429:
428:
376:
375:
307:
306:
302:
299:
253:
252:
155:
149:
138:
132:
121:
115:
104:
98:
33:
21:
20:
1203:
1202:
1196:
1195:
1194:
1192:
1191:
1190:
1186:Units of volume
1171:
1170:
1169:
1164:
1133:Related systems
1128:
1057:
1043:Inch of mercury
1031:
1005:
952:
943:Feet per second
927:
886:
860:
814:
776:
740:
672:
663:
658:
628:
627:
617:
615:
614:on 22 July 2012
607:
593:
589:
579:
577:
573:
566:
560:
556:
546:
544:
535:
534:
530:
525:
520:
519:
514:
510:
502:
498:
495:
493:
491:
487:
482:
444:
437:
430:
423:
420:
373:
371:
349:
304:
300:
297:
295:
218:
197:flow capacity,
156:≈ 271,330
153:
147:
139:≈ 325,850
136:
130:
119:
113:
105:≈ 1,233.5
102:
96:
36:
17:
12:
11:
5:
1201:
1200:
1189:
1188:
1183:
1166:
1165:
1163:
1162:
1157:
1152:
1147:
1142:
1136:
1134:
1130:
1129:
1127:
1126:
1121:
1119:Spinning count
1116:
1111:
1106:
1101:
1096:
1091:
1086:
1081:
1079:Degree (angle)
1076:
1071:
1065:
1063:
1059:
1058:
1056:
1055:
1050:
1045:
1039:
1037:
1033:
1032:
1030:
1029:
1024:
1019:
1013:
1011:
1007:
1006:
1004:
1003:
1002:
1001:
996:
986:
981:
976:
971:
966:
960:
958:
954:
953:
951:
950:
948:Miles per hour
945:
939:
937:
933:
932:
929:
928:
926:
925:
920:
915:
910:
905:
900:
894:
892:
888:
887:
885:
884:
879:
874:
868:
866:
862:
861:
859:
858:
853:
848:
843:
838:
833:
828:
822:
820:
816:
815:
813:
812:
807:
802:
797:
791:
789:
782:
778:
777:
775:
774:
769:
764:
759:
754:
748:
746:
742:
741:
739:
738:
737:
736:
726:
721:
716:
711:
706:
701:
696:
691:
686:
680:
678:
674:
673:
668:
665:
664:
657:
656:
649:
642:
634:
626:
625:
587:
554:
527:
526:
524:
521:
518:
517:
508:
484:
483:
481:
478:
477:
476:
471:
466:
461:
456:
450:
449:
435:
432:Science portal
419:
416:
387:, abbreviated
348:
345:
342:
341:
338:
335:
334:
331:
328:
327:
324:
321:
320:
317:
313:
312:
292:
289:
288:
282:
279:
278:
272:
269:
268:
265:
261:
260:
257:
217:
214:
161:
160:
151:
150:Imperial units
144:
143:
134:
127:
126:
117:
110:
109:
100:
93:
92:
89:
88:
83:
76:
75:
71:
70:
67:
63:
62:
59:
55:
54:
49:
43:
42:
38:
37:
34:
26:
25:
15:
9:
6:
4:
3:
2:
1199:
1198:
1187:
1184:
1182:
1179:
1178:
1176:
1161:
1158:
1156:
1153:
1151:
1148:
1146:
1143:
1141:
1138:
1137:
1135:
1131:
1125:
1122:
1120:
1117:
1115:
1112:
1110:
1107:
1105:
1102:
1100:
1097:
1095:
1092:
1090:
1087:
1085:
1082:
1080:
1077:
1075:
1072:
1070:
1067:
1066:
1064:
1060:
1054:
1051:
1049:
1046:
1044:
1041:
1040:
1038:
1034:
1028:
1025:
1023:
1020:
1018:
1015:
1014:
1012:
1008:
1000:
997:
995:
992:
991:
990:
987:
985:
984:Hundredweight
982:
980:
977:
975:
972:
970:
967:
965:
962:
961:
959:
955:
949:
946:
944:
941:
940:
938:
934:
924:
921:
919:
916:
914:
911:
909:
906:
904:
901:
899:
896:
895:
893:
889:
883:
880:
878:
875:
873:
870:
869:
867:
863:
857:
854:
852:
849:
847:
844:
842:
839:
837:
834:
832:
829:
827:
824:
823:
821:
817:
811:
808:
806:
803:
801:
798:
796:
793:
792:
790:
786:
783:
779:
773:
770:
768:
765:
763:
760:
758:
755:
753:
750:
749:
747:
743:
735:
732:
731:
730:
727:
725:
722:
720:
717:
715:
712:
710:
707:
705:
702:
700:
697:
695:
692:
690:
687:
685:
682:
681:
679:
675:
671:
666:
662:
655:
650:
648:
643:
641:
636:
635:
632:
611:
606:
602:
596:
591:
572:
565:
558:
542:
538:
532:
528:
512:
489:
485:
475:
472:
470:
467:
465:
462:
460:
457:
455:
452:
451:
447:
441:
436:
433:
427:
422:
415:
413:
409:
405:
401:
400:metric system
396:
394:
390:
386:
381:
379:
369:
365:
360:
358:
354:
353:rule of thumb
339:
337:
336:
332:
330:
329:
325:
323:
322:
318:
315:
314:
311:
293:
291:
290:
287:
283:
281:
280:
277:
273:
271:
270:
266:
263:
262:
258:
255:
254:
251:
249:
245:
240:
238:
234:
229:
227:
223:
213:
211:
210:swimming pool
206:
204:
200:
196:
192:
188:
184:
180:
179:United States
176:
172:
168:
159:
152:
145:
142:
135:
128:
125:
118:
111:
108:
101:
94:
90:
87:
84:
82:
79:1 ac⋅ft
78:
77:
72:
68:
64:
60:
56:
53:
50:
48:
44:
39:
32:
27:
22:
19:
1094:Foot-lambert
1069:Bolt (cloth)
922:
616:. Retrieved
605:the original
590:
578:. Retrieved
571:the original
557:
545:. Retrieved
541:the original
531:
511:
488:
446:Water portal
397:
392:
388:
384:
382:
377:
363:
361:
350:
286:imp gal
241:
230:
219:
207:
166:
164:
158:imp gal
122:43,560
85:
80:
58:Unit of
18:
1089:Foot-candle
1022:Pound-force
836:Fluid ounce
772:Square mile
762:Square yard
757:Square foot
752:Square inch
408:cubic meter
347:Application
310:US gal
256:1 acre-foot
216:Definitions
203:river flows
201:water, and
141:US gal
47:Unit system
1175:Categories
1104:Horsepower
1084:Fahrenheit
872:Board foot
831:Tablespoon
810:Cubic mile
805:Cubic yard
800:Cubic foot
795:Cubic inch
618:30 January
580:30 January
199:irrigation
183:reservoirs
124:cu ft
923:Acre-foot
882:Face cord
523:Citations
412:kilometer
410:or cubic
187:aqueducts
169:is a non-
167:acre-foot
24:acre-foot
1036:Pressure
826:Teaspoon
547:15 March
418:See also
173:unit of
99:SI units
1017:Poundal
819:Cooking
788:Derived
734:statute
724:Furlong
501:⁄
494:325,851
303:⁄
296:325,851
237:furlong
918:Barrel
913:Bushel
856:Gallon
781:Volume
677:Length
308:
191:canals
175:volume
81:in ...
66:Symbol
61:Volume
1010:Force
999:Short
979:Pound
974:Ounce
964:Grain
936:Speed
898:Minim
891:Other
851:Quart
719:Chain
574:(PDF)
567:(PDF)
404:liter
351:As a
246:or a
235:by a
233:chain
195:sewer
69:ac⋅ft
1109:Perm
994:Long
969:Dram
957:Mass
908:Peck
903:Gill
877:Cord
865:Wood
846:Pint
767:Acre
745:Area
729:Mile
709:Yard
704:Foot
699:Link
694:Hand
689:Inch
620:2008
582:2008
549:2014
362:The
226:foot
222:acre
165:The
1027:Kip
989:Ton
841:Cup
714:Rod
610:PDF
393:KAF
391:or
389:TAF
294:=
1177::
406:,
395:.
374:10
250:.
228:.
205:.
193:,
189:,
185:,
171:SI
653:e
646:t
639:v
622:.
612:)
608:(
584:.
551:.
503:7
499:3
496:+
378:^
372:×
305:7
301:3
298:+
276:m
107:m
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
