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The Sport:

  • Orienteering History
  • Orienteering Overview
  • Course Setup
  • Officials
  • Start/Finish Areas
  • Course Safety
  • Control Point Guidelines
  • Map Symbols
  • Orienteering Techniques
  • Civilian Orienteering

    The Skills:

  • Maps
  • Marginal Information and Symbols
  • Grids
  • Scale and Distance
  • Direction
  • Overlays
  • Aerial Photographs
  • Navigation Equipment and Methods
  • Elevation and Relief
  • Terrain Association
  • Navigation in Different Types of Terrain

  • Field Sketching
  • Map Folding Techniques
  • Units of Measure and Conversion Factors

  • Units of Measure and Conversion Factors

    This appendix provides conversion tables for units of measure and conversion factors that are used in military operations.

    12 inches

    36 inches

    3 feet

    1,760 yards

    2,026.8 yards

    5,280 feet

    6,080.4 feet

    63,360 inches

    72,963 inches

    =

    =

    =

    =

    =

    =

    =

    =

    =

    1 foot

    1 yard

    1 yard

    1 mile statute

    1 mile nautical

    1 mile statute

    1 mile nautical

    1 mile statute

    1 mile nautical

    Table C-1. English system of linear measure.

     

    1 millimeter

    10 millimeters

    10 centimeters

    10 decimeters

    10 meters

    10 decameters

    10 hectometers

    10 kilometers

    =

    =

    =

    =

    =

    =

    =

    =

    centimeter

    centimeter

    decimeter

    meter

    decameter

    hectometer

    kilometer

    1.0 myriameter

    =

    =

    =

    =

    =

    =

    =

    =

    0.0393 inches

    0.3937 inches

    3.937 inches

    39.37 inches

    32.81 feet

    328.1 feet

    0.62 mile

    6.21 miles

    Table C-2. Metric system of linear measure.

     

    1 mil

    1 grad

    1 degree

    =

    =

    =

    1/6400 circle

    1/400 circle

    1/360 circle

    =

    =

    =

    0.05625°

    16.0 mils

    about 17.8 mils

    =

    =

    =

    0.0625 grad

    0°54' = 0.9°

    about 1.1 grad

    Table C-3. Equivalent units of angular measure.

     

    ONE INCHES FEET YARDS STATUTE MILES NAUTICLE MILES mm
    Inch 1 0.0833 0.0277 - - 25.40
    Foot 12 1 0.333 - - 304.8
    Yard 36 3 1 0.00056 - 914.4
    Statute Mile 63,360 5,280 1,760 1 0.8684 -
    Nautical Mile 72,963 6,080 2,026 1.1516 1 -
    Millimeter 0.0394 0.0033 0.0011 - - 1
    Centimeter 0.3937 0.0328 0.0109 - - 10
    Decimeter 3.937

    0.328

    0.1093

    - - 100
    Meter 39.37 3.2808 1.0936 0.0006 0.0005 1,000
    Decameter 393.7 32.81 10.94 0.0062 0.0054 10,000
    Hectometer 3,937 328.1 109.4 0.0621 0.0539 100,000
    Kilometer 39,370 3,281 1,094 0.6214 0.5396 1,000,000
    Myriameter 393,700 32,808 10,936 6.2137 5.3959 10,000,000

     

    ONE cm dm M dkm hm km mym
    Inch 2.540 0.2540 0.0254 0.0025 0.0003 - -
    Foot 30.48 3.048 0.3048 0.0305 0.0030 0.0003 -
    Yard 91.44 9.144 0.9144 0.0914 0.0091 0.0009 -
    Statute Mile 160,930 16,093 1,609 160.9 16.09 1.6093 0.1609

    Nautical Mile 185,325 18,532 1,853 185.3 18.53 1.8532 0.1853

    Millimeter 0.1 0.01 0.001 0.0001 - - -
    Centimeter 1 0.1 0.01 0.001 0.0001 - -
    Decimeter 10 1 0.1 0.01 0.001 0.0001 -
    Meter 100 1 1 0.1 0.01 0.001 0.0001

    Decameter 1,000 10 10 1 0.1 0.01 0.001

    Hectometer 10,000 100 100 10 1 0.1 0.01

    Kilometer 100,000 1,000 1,000 100 10 1 0.1

    Myriameter 1,000,000 10,000 10,000 1000 100 10 1

    Table C-4. Conversion factors.

    Example I

    Problem:Reduce 76 centimeters to (?) inches.
    76 cm x 0.3937 = 29 inches
    Answer:There are 29 inches in 76 centimeters.

    Example II

    Problem:How many feet are there in 2.74 meters?
    2.74 = 9 feet
    ——
    .3048
    Answer:There are approximately 9 feet in 2.74 meters.

     

    SCALE 1 INCH EQUALS 1 CENTIMETER EQUALS
    1:5,000 416.67 feet
    127.00 meters
    164.00 feet
    50.00 meters
    1:10,000

    833.33 feet
    254.00 meters
    328.10 feet
    100.00 meters
    1:12,500 1,041.66 feet
    317.00 meters
    410.10 feet
    125.00 meters
    1:20,000 1,666.70 feet
    508.00 meters
    656.20 feet
    200.00 meters
    1:25,000 2,083.30 feet
    635.00 meters
    820.20 feet
    250.00 meters
    1:50,000 4,166.70 feet
    1,270.00 meters
    1,640.40 feet
    500.00 meters
    1:63,360 5,280.00 feet
    1,609.30 meters
    2,078.70 feet
    633.60 meters
    1:100,000 8,333.30 feet
    2,540.00 meters
    3,280.80 feet
    1,000.00 meters
    1:250,000 20,833.00 feet
    6,350.00 meters
    8,202.00 feet
    2,500.00 meters
    1:500,000 41,667.00 feet
    12,700.00 meters
    16,404.00 feet
    5,000.00 meters

    Table C-5. Ground distance at map scale.

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