GeoCAD Bridge

EPSG Library · Global and web

EPSG:3395 — WGS 84 / World Mercator

Source: EPSG Dataset via PROJ 9.5.1 · Updated

Summary

EPSG:3395 (WGS 84 / World Mercator) is a projected coordinate reference system on the World Geodetic System 1984 ensemble datum using the Mercator (variant A) method, with coordinates in metres. Area of use: World between 80°S and 84°N. The datum is an ensemble with about 2.0 m accuracy, so precise work should name a specific realization.

  • Type: projected
  • Datum: World Geodetic System 1984 ensemble
  • Units: metre
  • Axes: E, N

Definition

EPSG:3395 as published in the EPSG Dataset (PROJ 9.5.1).
PropertyValue
EPSG codeEPSG:3395
NameWGS 84 / World Mercator
TypeProjected CRS
DatumWorld Geodetic System 1984 ensemble (ensemble, accuracy ≈ 2.0 m)
EllipsoidWGS 84 (a = 6,378,137.000 m, 1/f = 298.257224)
Prime meridianGreenwich
Projection methodMercator (variant A)
AxesEasting (E, east, metre); Northing (N, north, metre)
ScopeVery small scale conformal mapping.
Bounding box-180° to 180° longitude, -80° to 84° latitude

Area of use

World between 80°S and 84°N.

Projection parameters

Mercator (variant A) parameters.
ParameterValueUnit
Latitude of natural origin0degree
Longitude of natural origin0degree
Scale factor at natural origin1unity
False easting0metre
False northing0metre

Example coordinates

A WGS 84 point at longitude 46.6753°, latitude 24.7136° (inside the area of use) has these coordinates in EPSG:3395:

Computed with PROJ using the EPSG default operation: axis order change (2D) + World Mercator.
AxisValueUnit
E5,195,870.629m
N2,822,749.499m

At this point the projection scale factor is 1.10018153 and the grid convergence is -0.000000°.

Open this conversion in the coordinate converter

Definitions and downloads

PROJ string

+proj=merc +lon_0=0 +k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs +type=crs

A PROJ string cannot carry every EPSG detail (axis order, datum ensemble, transformations). Prefer WKT2 or the EPSG code itself.

Proj4js definition used by the converter

+proj=merc +lon_0=0 +k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs

No datum shift is needed: this CRS is on WGS 84 or a datum Proj4js treats as equivalent at the metre level.

WKT2:2019
PROJCRS["WGS 84 / World Mercator", BASEGEOGCRS["WGS 84", ENSEMBLE["World Geodetic System 1984 ensemble", MEMBER["World Geodetic System 1984 (Transit)"], MEMBER["World Geodetic System 1984 (G730)"], MEMBER["World Geodetic System 1984 (G873)"], MEMBER["World Geodetic System 1984 (G1150)"], MEMBER["World Geodetic System 1984 (G1674)"], MEMBER["World Geodetic System 1984 (G1762)"], MEMBER["World Geodetic System 1984 (G2139)"], MEMBER["World Geodetic System 1984 (G2296)"], ELLIPSOID["WGS 84",6378137,298.257223563, LENGTHUNIT["metre",1]], ENSEMBLEACCURACY[2.0]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4326]], CONVERSION["World Mercator", METHOD["Mercator (variant A)", ID["EPSG",9804]], PARAMETER["Latitude of natural origin",0, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",0, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",1, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",0, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",0, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["(E)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["(N)",north, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Very small scale conformal mapping."], AREA["World between 80°S and 84°N."], BBOX[-80,-180,84,180]], ID["EPSG",3395]]

Downloads

FAQ

What is EPSG:3395?

EPSG:3395 (WGS 84 / World Mercator) is a projected coordinate reference system on the World Geodetic System 1984 ensemble datum using the Mercator (variant A) method, with coordinates in metres. Area of use: World between 80°S and 84°N. The datum is an ensemble with about 2.0 m accuracy, so precise work should name a specific realization.

Where can EPSG:3395 be used?

Its area of use is: World between 80°S and 84°N.

Is EPSG:3395 in metres or degrees?

EPSG:3395 is projected, so coordinates are easting and northing in metres, not degrees.

How do I convert EPSG:3395 to latitude and longitude?

Transform from EPSG:3395 to EPSG:4326 (WGS 84). In GeoCAD Bridge open the coordinate converter with EPSG:3395 preselected, enter easting and northing, and choose WGS 84 as the target.

Coordinate systems

Articles

Tools

References

  1. IOGP. EPSG Geodetic Parameter Dataset, epsg.org/crs_3395.
  2. PROJ 9.5.1 / pyproj 3.7.2, used to compute every value on this page.

Cite this page

GeoCAD Bridge. “EPSG:3395 — WGS 84 / World Mercator.” GeoCAD Bridge EPSG Library, updated 2026-10-05. https://www.geocadbridge.com/epsg/3395/