Decimal Degrees
Degree precision vs length
| decimal places |
decimal degrees |
DMS |
Object that can be unambiguously recognized at this scale |
N/S or E/W at equator |
E/W at 23N/S |
E/W at 45N/S |
E/W at 67N/S |
| 0 |
1.0 |
1° 00′ 0″ |
country or large region |
111 km |
102 km |
78.7 km |
43.5 km |
| 1 |
0.1 |
0° 06′ 0″ |
large city or district |
11.1 km |
10.2 km |
7.87 km |
4.35 km |
| 2 |
0.01 |
0° 00′ 36″ |
town or village |
1.11 km |
1.02 km |
0.787 km |
0.435 km |
| 3 |
0.001 |
0° 00′ 3.6″ |
neighborhood, street |
111 m |
102 m |
78.7 m |
43.5 m |
| 4 |
0.0001 |
0° 00′ 0.36″ |
individual street, large buildings |
11.1 m |
10.2 m |
7.87 m |
4.35 m |
| 5 |
0.00001 |
0° 00′ 0.036″ |
individual trees, houses |
1.11 m |
1.02 m |
0.787 m |
0.435 m |
| 6 |
0.000001 |
0° 00′ 0.0036″ |
individual humans |
111 mm |
102 mm |
78.7 mm |
43.5 mm |
| 7 |
0.0000001 |
0° 00′ 0.00036″ |
practical limit of commercial surveying |
11.1 mm |
10.2 mm |
7.87 mm |
4.35 mm |
| 8 |
0.00000001 |
0° 00′ 0.000036″ |
specialized surveying |
1.11 mm |
1.02 mm |
0.787 mm |
0.435 mm |
References:
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