A map projection is a systematic transformation of a 3-dimensional coordinate system into locations on a plane (2-dimensional surface). All map projections contain some necessary distortion in order to achieve this. They may preserve different properties, or minimize distortion in particular areas, depending on the purpose of the projection.
The Geographic Calculator supports many types of map projections. For information on a particular projection, please see:
- Aitoff
- Alaska 27
- Albers Equal Area Conic
- Azimuthal Equal Area
- Azimuthal Equal Area (Polar Aspect)
- Azimuthal Equidistant
- Azimuthal Equidistant (Polar Aspect)
- Behrmann
- Belgium 72
- Bipolar Oblique Conic Conformal
- Bonne
- Cassini
- Craster Parabolic
- Danish System 34
- Danish System 34 (1999)
- Double Stereographic
- Eckert I
- Eckert II
- Eckert III
- Eckert IV
- Eckert V
- Eckert VI
- EOV
- Equal Area Cylindrical
- Equidistant Conic
- Equidistant Cylindrical
- European Stereographic
- Fuller (Dymaxion)
- Gall-Peters
- Gall Stereographic
- Gnomonic
- Goode Homolosine
- Goode Homolosine Interrupted
- Guam
- Guam State Plane 27
- Hammer Aitoff
- HOM/RSO (Deprecated)
- Hyperbolic Cassini-Soldner
- IMW Polyconic
- Krovak
- Laborde
- Lambert Conformal Conic (1 parallel)
- Lambert Conformal Conic (2 parallel)
- Lambert Conformal Conic Extended
- Lambert Near Conformal Conic
- Lambert State Plane 27
- Loximuthal
- McBryde-Thomas Flat Polar Quartic
- Mercator
- Mercator Variant C
- Military Grid Reference System (Deprecated)
- Miller Cylindrical
- Mollweide
- Natural Earth
- Natural Earth 2
- New Zealand Map Grid
- Oblique Equal Area Cylindrical
- Oblique Mercator Azimuth
- Oblique Mercator Azimuth Extended
- Oblique Mercator Two Point
- Orthographic
- Patterson
- Perspective Conic
- Polar Stereographic
- Polar Stereographic (Variant C)
- Polyconic
- Popular Visualisation Pseudo-Mercator
- Quartic Authalic
- Robinson
- Sinusoidal
- Space Oblique Mercator
- Stereographic
- Stereographic 70
- Swiss Oblique Mercator
- Tilted Perspective
- Times
- Transverse Mercator (Gauss-Kruger)
- Transverse Mercator Extended
- Transverse Mercator Snyder
- Transverse Mercator South Oriented
- Transverse Mercator State Plane 27
- Tunisia Mining Grid
- Two-Point Equidistant
- Two-Point Fit
- Universal Transverse Mercator
- V and H
- Van der Grinten
- Van der Grinten IV
- Vertical Perspective
- Winkel I
- Winkel II
- Winkel Tripel