Page 86 - Nutrient Management Planning Guide

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Chapter 3.2

Table 3.2.4 Common Map Scales Plus Approximate Metric Measurements and Estimates of Area

Relative Scale

Scale in Centimetres and Meters

cm per km

ha per Grid Map Square (2.5 x 2.5 cm)

Representative ha for Each Dot

in the Square

1:5,000 1 = 50 20.0 1.613 0.0252 1:10,000 1 = 100 10.0 6.452 0.101 1:15,000 1 = 150 6.667 14.517 0.227 1:20,000 1 = 200 5.0 25.807 0.403 1:30,000 1 = 300 3.333 58.066 0.907 1:31,680 1 = 316.8 3.157 64.752 1.012 1:40,000 1 = 400 2.5 103.229 1.613 1:60,000 1 = 600 1.667 232.265 3.629 1:63,360 1 = 633.6 1.578 259.008 4.047

Table 3.2.5 Common map scales plus approximate imperial measurements and estimates of area

Relative Scale

Scale in Inches and

Feet

Inches per Mile

ac per Grid Map Square (2.5 x 2.5 cm)

Representative ac for Each Dot in the Square

1:5,000 1 = 417 12.672 3.986 0.0623 1:10,000 1 = 833 6.336 15.942 0.249 1:15,000 1 = 1,250 4.224 35.870 0.560 1:20,000 1 = 1,667 3.168 63.769 0.996 1:30,000 1 = 2,500 2.112 143.48 2.242 1:31,680 1 = 2,640 2.000 160.00 2.5 1:40,000 1 = 3,333 1.584 255.076 3.986 1:60,000 1 = 5,000 1.056 573.92 8.970 1:63,360 1 = 5,280 1.000 640.00 10.0