NAD27 NAD28 Converter

Convert a geographic coordinate between NAD27 and NAD83 datums.

This tool is using ApsNadcon™ DLL - a .NET library that provides conversion between NAD 27 and NAD 83 datums.

Original Geographic Coordinate

  • Latitude valid formats:
    "Decimal" (ex. '38.889139') or
    "Degrees Minutes Seconds" (ex. '38 53 20.9 N')

  • Latitude:  
  •  

  • Longitude valid formats:
    "Decimal" (ex. '-77.049') or
    "Degrees Minutes Seconds" (ex. '77 2 56.4 W')

  • Longitude:  
  •  
Results Format Options
  •  
 
Converted Geographic Coordinate
  • Latitude:
  • Longitude:

Related links

ApsNadcon™ .NET DLL

Great circle distance and bearing calculation

Destination calculation

Latitude/longitude conversion between DMS and decimal formats