R.S.O. Borneo (M) Projection Conversion Calculator

This online geographic calculator is useful to convert between Lat/Lon coordinates and Timbalai 1948/Rectified Skewed Orthomorphic Borneo (m) grid coordinates. Note: A new and better version of this calculator is available on this blog at http://dominoc925.blogspot.com/p/rso-borneo-m-projection-coordinates.html. 

To convert lat/lon coordinates to easting/northing coordinates, simply type in the lat/lon coordinates below and click Convert to Easting, Northing.

Lat (d:m:s):

Lon (d:m:s):


To convert easting/northing coordinates to lat/lon coordinates, type in the easting/northing values below and click Convert to Latitude, Longitude.

Easting (m) :

Northing (m):

Equations for the coordinate conversions are from this site.