Convert coordinates: MGRS, UTM and latitude-longitude

Read any coordinate in all four forms at once. Everything is worked out in your browser; nothing is sent anywhere unless you look up a point's height.

What you can type

FormExamples
MGRS reference, at any precision · · (a 1 km square) · (a 100 km square)
UTM coordinate · ·
Near the poles (UPS and polar MGRS) · · (the South Pole's 100 km square)
Latitude and longitude, decimal ·
Degrees, minutes and seconds · ·

An MGRS reference names a square, not a point (a 1 m square with ten digits, a 100 km one with none): the results are the square's center, where the globe flies and pins. What MGRS is and What UTM is explain both systems.