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What is the scale in units of inches/foot?Įxample 5 - Use the map scale in example 6. Also, if a map has section lines, the distance between section lines is typically 1 mile.Įxample 4 - The distance between point A and B is 6 inches on the map. The scale can be calculated by knowing the distance between two points on the map, and measuring the distance on the map. Occasionally, a map may not provide a scale. Step 3. Set up the cancellation table so all units will cancel, except the desired unit, inches.ġ2,000 feet = 182 chains = 2.3 miles = 144,000 inches Step 2. Set up the cancellation table so all units will cancel, except the desired unit, miles. Step 1. Set up the cancellation table so all units will cancel, except the desired unit, chains. Example 3b - Using the information in Example 3a, find the ground distance in chains, miles, and inches.

Multiply the total number of dots by the conversion factor on the map scale to determine the total acreage. Count every other dot when dots fall on the boundary line. Place the acreage grid transparency over the area to be measured.Ĭount dots inside the sketched area. Table 5.2 Acreage Grid Overlay, Map Scales, and Equivalents. To use the acreage grid transparency, follow these steps: USING THE MODIFIED ACREAGE GRID (TRANSPARENCY) Set up the cancellation table so all units will cancel, except the desired unit, feet. Step 1. Set up the cancellation table so all units will cancel, except the desired unit, miles/inch.Įxample 3a - The map distance between two points is 6 inches. On the map 1 inch is equal to 2,000 feet on the ground, 1:2,000 (in/ft).Įxample 2 - Convert the 1:2,000 (in/ft) to (in/mile). Step 1. Set up the cancellation table so all units will cancel, except the desired unit, ft/in.

Ground distances on maps are usually given in feet or miles.Įxample 1 - Convert the map scale of 1:24,000 (in/in) to (in/ft). For example, a map scale indicating a ratio of 1:24,000 (in/in), means that for every 1 inch on the map, 24,000 inches have been covered on the ground. It is given as a ratio of inches on the map corresponding to inches, feet, or miles on the ground. The map scale is printed in the map legend.