Geo Toolkit
How to use
What it does
A few purely mathematical geographic calculations: great-circle distance between two latitude and longitude points, conversion between degrees-minutes-seconds and decimal degrees, the bearing between two coordinates, and a rough timezone offset derived from longitude. No map service is called, so it works offline, and the output is just numbers rather than a map.
How to use it
Switch calculators at the top. The distance tool takes both coordinate pairs and returns the great-circle distance plus initial bearing, in kilometres or miles; the DMS converter works in both directions, so mind the east/west and north/south signs; the bearing panel gives an angle measured from true north; the timezone panel estimates an offset in hours from longitude — for anything official, still consult a proper timezone database.
FAQ
Why numbers only, with no map?
Deliberately — every output is a pure mathematical result and no map service is called, so the tool works offline. For a visual, carry the coordinates and results into a mapping tool.
How reliable is the timezone offset?
It is a rough estimate in hours derived from longitude, fine for quick reference only — real time zone boundaries do not follow meridians strictly, so consult an official timezone database for anything that matters.
Where do DMS conversions most often go wrong?
The sign. East/west and north/south are encoded through positive and negative values, so confirm the hemisphere sign before converting in either direction — distance and bearing results inherit any mistake.
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