Map Rulers - DeLorme Set of Map Rulers
Scales for most DeLorme State Atlas and Gazateers
Product Description
Rulers covering the scales used in some of DeLorme’s Atlas and Gazetteers.
These rulers can be used to measure or plot latitude/longitude coordinates, UTM/MGRS/USNG coordinates, and to measure distances in either meters or miles.
On the front side, the rulers have minutes and seconds on one edge and decimal minutes on the other edge, allowing you to use either notation. On the back side, the rulers have distance in meters on one edge, and distance in either miles on the other edge.
Latitude is measured directly with the rulers. But, since a degree of longitude covers a shorter distance as you move towards the poles, the rulers are used on a diagonal to measure longitude. See the usage diagrams for more information.
The rules are packaged in a handy clear vinyl storage pouch, and includes instructions for use.
NOTE: As DeLorme has been updating their atlases, they have been changing map scales. We have not been able to keep up, and do not have rulers for some of the new scales.
Sorry, but I have given up trying to keep up with DeLorme's ever changing scales.
Scale | Maps | Front Side | Back Side | |||
Span |
Ruler Increments in Minutes |
Ruler Increments in Seconds |
Ruler Increments in meters |
Ruler Increments in Miles or Nautical Miles |
||
1:77,000 |
|
5 min | 0.05 min | 1 sec | 50 m | 0.05 nm |
1:80,000 |
|
7.5 min | 0.05 min | 1 sec | 50 m | 0.05 nm |
1:100,000 |
|
10 min | 0.05 min | 5 sec | 50 m | 0.1 mi |
1:125,000 |
|
7.5 min | 0.05 min | 5 sec | 50 m | 0.1 mi |
1:150,000 |
|
15 min | 0.1 min | 5 sec | 100 m | 0.1 mi | 1:160,000 |
|
15 min | 0.05 min | 5 sec | 100 m | 0.1 mi |
1:200,000 |
|
15 min | 0.1 min | 10 sec | 100 m | 0.1 mi |
1:250,000 |
| 15 min | 0.1 min | 15 sec | 100 m | 0.1 mi |
1:300,000 |
|
30 min | 0.1 min | 10 sec | 100 m | 0.1 mi |
1:320,000 |
|
30 min | 0.1 min | 10 sec | 100 m | 0.1 mi |
1:400,000 |
|
30 min | 0.5 min | 15 sec | 500 m | 0.5 mi |
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Item description | Quantity | Price | Quantity |
Specifications
Dimensions:Height: 8.500 in. (216mm)
Width: 3.000 in. (76mm)
Thickness: 0.020 in. (1mm)
Made in United States.
How to use products like this...
Using a map ruler to plot/measure latitude longitude position
Here is a tutorial on working with latitude longitude coordinates.
Using a map ruler to plot/measure a UTM position with 10m precision
Here is information on using the Universal Transverse Mercator coordinates (UTM).
Here is information on using the United States National Grid (USNG).
Here is information on using the Military Grid Reference System (MGRS).