How do I convert these coordinates to coordinates readable by Google Maps?
Here is the Javascript function that does what you are talking about.
This utility permits the user to convert latitude and longitude between decimal degrees and degrees, minutes, and seconds. For convenience, a link is included to the National Geodetic Survey's NADCON program, which allows conversions between the NAD83 / WGS84 coordinate system and the older NAD27 coordinate system. NAD27 coordinates are presently used for broadcast authorizations and applications.
This utility requires that Javascript be enabled to perform the calculations.
The original format is in hours, minutes, seconds format. To convert to decimal, do:
D = H + M/60 + s/3600
So in your example, 37,14,6 becomes
37 + 14/60 + 6/3600 = 37.235, as stated.
If the latitude is N the result is positive, if S, negative. If the longitude is E the result is positive. If west the result is negative.