ICL Strollers
 
Walks
 
 
 
 
 
 

Monsal Head
  Convert between OSGB Grid and WGS84 Latitude/Longitude
 

6-digit references provide precision to 100m grid squares; 8 digits to 10m grid squares, and 10 digits to 1m. Accuracy to within 7 metres, but there is no guarantee. Use at your own risk.

 

OSGB Grid Ref

WGS84 Latitude longitude

Positive Latitude values represent N, negative values represent S
Positive Longitude values represent E, negative values represent W

SD9674404705 returns Latitude: 53.5389812579° Longitude: -2.0506002117°
which can be interpreted as Latitude: N53.5389812579° Longitude: W2.0506002117°

   Display GB latitude/longitude in Google Maps

Details

Please check ferry times before travelling !! 



Convert decimal to degrees or vice versa.

Convert your decimal latitude/longitude value into degrees/minutes/seconds format or vice versa.

When specifying degrees don't bother about ° sign or any other. Just separate the degrees from minutes and seconds with a space like this:
30 0 19, which will mean 30° 0' 19".

DecimalDegree

Examples of correct inputs for Degree:

  • 10 33 0   (=10° 33' 0")
  • 10 33' 0"   (=10° 33' 0")
  • 010 033 0   (=10° 33' 0")
  • 10 0" 33'   (=10° 33' 0")
  • 30'   (=0° 30' 0")
  • 100 5"   (=100° 0' 5")
  • 23 8' 41.99"   (decimal seconds, =23° 8' 41.99")



Convert between Irish Grid and WGS84 Latitude/Longitude

Irish Grid Ref

WGS84 Latitude longitude

   Display Irish latitude/longitude in Google Maps

 

Code adapted from Clem Rutter, Rochester,Kent, Wikipedia User who acknowledges that most of the real work was already done. Sizeable chunks, and all the nasty maths from Paul Dixon Copyright © 2005 .Paul Dixon.Code derived from spreadsheet and converted to php by Ian Harris and Barry Hunter. Conversion accuracy is in the order of 7m for 90% of Great Britain. More accurate results can be obtained using the National Grid Transformation OSTN02.
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public Licence as published by the Free Software Foundation; either version 2 of the License, or any later version. This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose. See the GNU General Public Licence for more details.