acre | 1 ac | 2 ac | 3 ac | 4 ac | 5 ac | 6 ac | 7 ac | 8 ac | 9 ac | 10 ac | 11 ac | 12 ac | 13 ac | 14 ac | 15 ac | 16 ac | 17 ac | 18 ac | 19 ac | 20 ac | 21 ac | 22 ac | 23 ac | 24 ac | 25 ac | 26 ac | 27 ac | 28 ac | 29 ac | 30 ac | 31 ac | 32 ac | 33 ac | 34 ac | 35 ac | 36 ac | 37 ac | 38 ac | 39 ac | 40 ac | 41 ac | 42 ac | 43 ac | 44 ac | 45 ac | 46 ac | 47 ac | 48 ac | 49 ac | 50 ac | 51 ac | 52 ac | 53 ac | 54 ac | 55 ac | 56 ac | 57 ac | 58 ac | 59 ac | 60 ac | 61 ac | 62 ac | 63 ac | 64 ac | 65 ac | 66 ac | 67 ac | 68 ac | 69 ac | 70 ac | 71 ac | 72 ac | 73 ac | 74 ac | 75 ac | 76 ac | 77 ac | 78 ac | 79 ac | 80 ac | 81 ac | 82 ac | 83 ac | 84 ac | 85 ac | 86 ac | 87 ac | 88 ac | 89 ac | 90 ac | 91 ac | 92 ac | 93 ac | 94 ac | 95 ac | 96 ac | 97 ac | 98 ac | 99 ac | 100 ac |
square millimeter | 4 046 856 420 mm2 | 8 093 712 840 mm2 | 12 140 569 260 mm2 | 16 187 425 680 mm2 | 20 234 282 100 mm2 | 24 281 138 520 mm2 | 28 327 994 940 mm2 | 32 374 851 360 mm2 | 36 421 707 780 mm2 | 40 468 564 200 mm2 | 44 515 420 620 mm2 | 48 562 277 040 mm2 | 52 609 133 460 mm2 | 56 655 989 880 mm2 | 60 702 846 300 mm2 | 64 749 702 720 mm2 | 68 796 559 140 mm2 | 72 843 415 560 mm2 | 76 890 271 980 mm2 | 80 937 128 400 mm2 | 84 983 984 820 mm2 | 89 030 841 240 mm2 | 93 077 697 660 mm2 | 97 124 554 080 mm2 | 101 171 410 500 mm2 | 105 218 266 920 mm2 | 109 265 123 340 mm2 | 113 311 979 760 mm2 | 117 358 836 180 mm2 | 121 405 692 600 mm2 | 125 452 549 020 mm2 | 129 499 405 440 mm2 | 133 546 261 860 mm2 | 137 593 118 280 mm2 | 141 639 974 700 mm2 | 145 686 831 120 mm2 | 149 733 687 540 mm2 | 153 780 543 960 mm2 | 157 827 400 380 mm2 | 161 874 256 800 mm2 | 165 921 113 220 mm2 | 169 967 969 640 mm2 | 174 014 826 060 mm2 | 178 061 682 480 mm2 | 182 108 538 900 mm2 | 186 155 395 320 mm2 | 190 202 251 740 mm2 | 194 249 108 160 mm2 | 198 295 964 580 mm2 | 202 342 821 000 mm2 | 206 389 677 420 mm2 | 210 436 533 840 mm2 | 214 483 390 260 mm2 | 218 530 246 680 mm2 | 222 577 103 100 mm2 | 226 623 959 520 mm2 | 230 670 815 940 mm2 | 234 717 672 360 mm2 | 238 764 528 780 mm2 | 242 811 385 200 mm2 | 246 858 241 620 mm2 | 250 905 098 040 mm2 | 254 951 954 460 mm2 | 258 998 810 880 mm2 | 263 045 667 300 mm2 | 267 092 523 720 mm2 | 271 139 380 140 mm2 | 275 186 236 560 mm2 | 279 233 092 980 mm2 | 283 279 949 400 mm2 | 287 326 805 820 mm2 | 291 373 662 240 mm2 | 295 420 518 660 mm2 | 299 467 375 080 mm2 | 303 514 231 500 mm2 | 307 561 087 920 mm2 | 311 607 944 340 mm2 | 315 654 800 760 mm2 | 319 701 657 180 mm2 | 323 748 513 600 mm2 | 327 795 370 020 mm2 | 331 842 226 440 mm2 | 335 889 082 860 mm2 | 339 935 939 280 mm2 | 343 982 795 700 mm2 | 348 029 652 120 mm2 | 352 076 508 540 mm2 | 356 123 364 960 mm2 | 360 170 221 380 mm2 | 364 217 077 800 mm2 | 368 263 934 220 mm2 | 372 310 790 640 mm2 | 376 357 647 060 mm2 | 380 404 503 480 mm2 | 384 451 359 900 mm2 | 388 498 216 320 mm2 | 392 545 072 740 mm2 | 396 591 929 160 mm2 | 400 638 785 580 mm2 | 404 685 642 000 mm2 |
The acre is a unit of land area used in the imperial and US customary systems. It is defined as the area of 1 chain by 1 furlong (66 by 660 feet), which is exactly equal to 1⁄640 of a square mile, 43,560 square feet, approximately 4,047 m2, or about 40% of a hectare.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
acre | ac | ≡ 1 ch × 10 ch = 4840 sq yd | ≡ 4046.8564224 m2 | Imperial/US |
acres | square millimeters | acres | square millimeters |
---|---|---|---|
1 | = 4046856420 | 6 | = 24281138520 |
2 | = 8093712840 | 7 | = 28327994940 |
3 | = 12140569260 | 8 | = 32374851360 |
4 | = 16187425680 | 9 | = 36421707780 |
5 | = 20234282100 | 10 | = 40468564200 |
Square millimetre or Square millimeter is a SI prefixes applied unit of area, symbol mm2, is a multiple of the of SI prefixes (milli) used with the metre.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
square millimeter | mm2 | ≡ 1 mm × 1 mm ≡ 10-3 m × 10-3 m | = 10-6 m2 | Metric system SI |
square millimeters | acres | square millimeters | acres |
---|---|---|---|
1 | = 2.4710538161371E-10 | 6 | = 1.4826322896823E-9 |
2 | = 4.9421076322742E-10 | 7 | = 1.729737671296E-9 |
3 | = 7.4131614484114E-10 | 8 | = 1.9768430529097E-9 |
4 | = 9.8842152645485E-10 | 9 | = 2.2239484345234E-9 |
5 | = 1.2355269080686E-9 | 10 | = 2.4710538161371E-9 |
acres | square millimeters |
---|---|
1 | = 4 046 856 420 |
2.4710538161371 × 10-10 | = 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |