FACTORS AND TABLES OF EQUIVALENTS USED IN FORESTRY 

 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 



0.201 



0.01 



0. 4356 



0. 00001 





3.28 



1 



.050 



10.76 



. 00025 



~"~6.~66oT~ 



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 



i The value in heavier type is that from which the corresponding values were computed, 

 decimals or rounded values not shown in this table. 

 2 1 milacre. 



Continuing 



