FACTORS AND TABLES OF EQUIVALENTS USED IN FORESTRY 9 

 Table 17. — Areas of squares, length of one side being given 1 



Length of each side of square 



Area of square 



Feet. 



Meters 



Chains 



Square feet 



Acres 



Hectares 



0.66 

 3.28 



0.201 

 1 



0.01 



.050 



0. 4356 

 10.76 



0.00001 

 .00025 





ofoooi" - 



6.56 



2 



.099 



43.06 



.00099 



.0004 



6.6 



2.012 



.1 



43.56 



2.001 



.0004 



9.84 



3 



.149 



96.87 



.00222 



.0009 



10 



3.048 



.152 



100 



.00230 



.0009 



13.1 



4 



.199 



172. 22 



.00395 



.0016 



13.2 



4.023 



.2 



174. 24 



.004 



.0016 



15 



4.572 



.227 



225 



.00517 



.0021 



16.4 



5 



.249 



269. 10 



.00618 



.0025 



16.5 



5.029 



.25 



272. 25 



. 00625 



.0025 



19.7 



6 



.298 



387. 50 



.00890 



.0036 



19.8 



6.035 



.3 



392. 04 



.009 



.0036 



20 



6.096 



.303 



400 



.00918 



.0037 



23.0 



7 



.348 



527. 43 



.01211 



.0049 



25 



7.620 



.379 



625 



. 01435 



.0058 



26.2 



8 



.398 



688. 89 



. 01581 



.0064 



26.4 



8.047 



.4 



696 96 



.016 



.0065 



29.5 



9 



.447 



871. 87 



. 02002 



.0081 



30 



9.144 



.455 



900 



. 02066 



.0084 



32.8 



10 



.497 



1, 076. 39 



. 02471 



.01 



33 



10. 058 



.5 



1,089 



.025 



.0101 



35 



10.668 



.530 



1,225 



. 02812 



.0114 



39.6 



12. 070 



.6 



1, 568. 16 



.036 



.0146 



40 



12. 192 



.606 



1,600 



. 03673 



.0149 



45 



13.716 



.682 



2,025 



. 04649 



.0188 



46.2 



14. 082 



.7 



2, 134. 44 



.049 



.0198 



49.5 



15. 088 



.75 



2, 450. 25 



. 05625 



.0228 



50 



15. 240 



.758 



2,500 



. 05739 



.0232 



52.8 



16. 093 



.8 



2, 787. 84 



.064 



.0259 



55 



16. 764 



.833 



3,025 



.06944 



.0281 



59.4 



18. 105 



.9 



3, 528. 36 



.081 



.0328 



65 



19. 812 



.985 



4,225 



. 09699 



.0393 



65.6 



20 



.994 



4, 305. 55 



. 09884 



.04 



66 



20. 117 



1 



4,356 



.1 



.0405 



70 



21. 336 



1.061 



4,900 



. 11249 



.0455 



75 



22. 860 



1.136 



5,625 



. 12913 



.0523 



80 



24.384 



1.212 



6,400 



. 14692 



.0595 



82.5 



25. 146 



1.25 



6, 806. 25 



. 15625 



.0632 



85 



25. 908 



1.288 



7,225 



. 16586 



.0671 



90 



27. 432 



1.364 



8,100 



. 18595 



.0753 



95 



28. 956 



1.439 



9,025 



. 20719 



.0838 



98.4 



30 



1.491 



9, 687. 48 



. 22239 



.09 



99 



30. 175 



1.5 



9,801 



.225 



.0911 



100 



30. 480 



1.515 



10,000 



. 22957 



.0929 



104.4 



31. 808 



1.581 



10, 890 



.25 



.1012 



115.5 



35. 204 



1.75 



13, 340. 25 



. 30625 



.1239 



131.2 



40 



1.988 



17, 222. 19 



. 39537 



.16 



132 



40.234 



2 



17,424 



.4 



.1619 



147.6 



44. 983 



2.236 



21, 780 



.5 



.2023 



148.5 



45. 263 



2.25 



22, 052. 25 



. 50625 



.2049 



164 



50 



2.485 



26, 909. 67 



. 61776 



.25 



165 



50.292 



2.5 



27, 225 



.625 



.2529 



196.8 



60 



2.983 



38, 749. 92 



. 88958 



.36 



198 



60. 351 



3 



39,204 



.9 



.3642 



200 



60. 960 



3.030 



40,000 



. 91827 



.3716 



208.7 



63. 615 



3.162 



43, 560 



1 



.4047 



229.7 



70 



3.480 



52, 742. 95 



1. 21081 



.49 



231 



70. 409 



3.5 



53, 361 



1.225 



.4957 



262.5 



80 



3.977 



68, 888. 75 



1. 58147 



.64 



264 



80. 467 



4 



69, 696 



1.6 



.6475 



295.3 



90 



4.474 



87, 187. 33 



2. 00155 



.81 



297 



90.526 



4.5 



88,209 



2.025 



.8195 



328.1 



100 



4.971 



107, 638. 7 



2. 47104 



1 



330 



100. 584 



5 



108, 900 



2.5 



1.0117 



1 The value in heavier type is that from which the corresponding values were computed. Continuing 

 decimals or rounded values not shown in this table. 

 3 1 milacre. 



