What Coordinate Format Should I Use?
Decimal Degrees, DMS, UTM, MGRS... why are there so many, and which one is the right one for you?
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Convert Coordinates in Seconds (No Setup Needed)The Simple Explanation
It depends on your activity. Use Decimal Degrees for sharing on Google Maps. Use MGRS for military, search and rescue, or serious land navigation. Use UTM for surveying and localized engineering.
Real World Example
If you are calling an Uber, use Lat/Long (Decimal Degrees). If you are reading a paper topographic map in the wilderness, use MGRS.
Pro Tip
When entering coordinates into map apps, always double-check if there is a negative sign (-). Missing a negative sign on longitude will place you on the opposite side of the planet!
Frequently Asked Questions
Are all these systems pinpointing the same place?
Yes! They are just different "languages" used to describe the exact same spot on the Earth.
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Warning: Verify Your Calculation
Coordinate accuracy varies by device and datum. Do not use these results for legal or construction purposes without checking:
GPS Accuracy Alert
Your phone's GPS can be off by 30 meters. This can cause critical errors in your data.
Check My Accuracy →Datum Shift Risk
Using the wrong coordinate system (e.g. WGS84 vs NAD83) creates a permanent 1-meter offset.
Verify My Datum →