Convert SAD69 to WGS 84

Convert coordinates from SAD69 (EPSG:4618) to WGS 84 (EPSG:4326) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

From

Input (lon, lat (decimal degrees))

Output (lon, lat (decimal degrees))

Direct link to this transformation: epsgtransform.com/transform/epsg-4618-to-epsg-4326

Official EPSG transformations from SAD69 to WGS 84

The EPSG Geodetic Parameter Dataset defines 20 transformations between SAD69 (EPSG:4618) and WGS 84 (EPSG:4326). Each applies to a specific area — pick the one whose area of use covers your data.

SAD69 to WGS 84 (15)

EPSG:5542±2 mBest accuracy

Method:: NTv2
Area of use:: Brazil - onshore south of 14°S and east of 53°W
Scope:: (null/copy) Approximation for medium and low accuracy applications assuming equality between plate-fixed static and earth-fixed dynamic CRSs, ignoring static/dynamic CRS differences.

Grid file: SAD69_003.gsb

Parameters values taken from SAD69 to SIRGAS 2000 (2) (tfm code 5528) assuming that SIRGAS 2000 and WGS 84 are equal within the accuracy of the transformation.

SAD69 to WGS 84 (17)

EPSG:6974±4 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Chile - onshore north of 32°S
Scope:: Military survey.

Parameter	Value	Unit
X-axis translation(tx)	-59	metre
Y-axis translation(ty)	-11	metre
Z-axis translation(tz)	-52	metre

Derived at 8 stations. Accuracy 2m in each axis. Along with CTs 6975 and 6976, replaces SAD69 to WGS 84 (5) (code 1868). Also used as a CT from SAD69 to SIRGAS-Chile - see code 7448. Note: SAD69 adopted by Chile authorities only south of 43°30'S.

SAD69 to WGS 84 (18)

EPSG:6975±4 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Chile - onshore 32°S to 36°S
Scope:: Military survey.

Parameter	Value	Unit
X-axis translation(tx)	-64	metre
Y-axis translation(ty)	0	metre
Z-axis translation(tz)	-32	metre

Derived at 6 stations. Accuracy 2m in each axis. Along with CTs 6974 and 6976, replaces SAD69 to WGS 84 (5) (code 1868). Also used as a CT from SAD69 to SIRGAS-Chile - see code 6968. Note: SAD69 adopted by Chile authorities only south of 43°30'S.

SAD69 to WGS 84 (14)

EPSG:1877±5 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Brazil
Scope:: Topographic mapping (medium and small scale).

Parameter	Value	Unit
X-axis translation(tx)	-66.87	metre
Y-axis translation(ty)	4.37	metre
Z-axis translation(tz)	-38.52	metre

Derived by Brazilian Institute of Geography and Statistics (IBGE) in 1989 at Chua origin point. In use by Shell throughout Brazil. For use by Petrobras and ANP, replaced by tfm code 5882 from 1994.

SAD69 to WGS 84 (16)

EPSG:5882±5 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Brazil
Scope:: (null/copy) Approximation for medium and low accuracy applications assuming equality between plate-fixed static and earth-fixed dynamic CRSs, ignoring static/dynamic CRS differences.

Parameter	Value	Unit
X-axis translation(tx)	-67.35	metre
Y-axis translation(ty)	3.88	metre
Z-axis translation(tz)	-38.22	metre

Parameter values taken from SAD69 to SIRGAS 2000 (1) (tfm code 15485) assuming that SIRGAS 2000 and WGS 84 are equal within the accuracy of the transformation. Used by ANP and Petrobras throughout Brazil from 1994, replacing use of tfm code 1877.

SAD69 to WGS 84 (7)

EPSG:1870±6 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Ecuador - mainland onshore
Scope:: Military survey.

Parameter	Value	Unit
X-axis translation(tx)	-48	metre
Y-axis translation(ty)	3	metre
Z-axis translation(tz)	-44	metre

Derived at 11 stations. Accuracy 3m in each axis. Note: SAD69 not adopted in Ecuador: see PSAD56 (CRS code 4248).

SAD69 to WGS 84 (20)

EPSG:6977±6 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Chile - Tierra del Fuego
Scope:: Military survey.

Parameter	Value	Unit
X-axis translation(tx)	-79	metre
Y-axis translation(ty)	13	metre
Z-axis translation(tz)	-14	metre

Derived at 6 stations. Accuracy 3m, 3m and 4m in X, Y and Z axes. Also used as a transformation from SAD69 to SIRGAS-Chile - see code 6970. Unlike IGM Chile, NGA extends use of this tfm to all Chile south of 44°S.

SAD69 to WGS 84 (19)

EPSG:6976±7 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Chile - onshore 36°S to 43.5°S
Scope:: Military survey.

Parameter	Value	Unit
X-axis translation(tx)	-72	metre
Y-axis translation(ty)	10	metre
Z-axis translation(tz)	-32	metre

Derived at 4 stations. Accuracy 4m in each axis. Along with CTs 6974 and 6975, replaces SAD69 to WGS 84 (5) (code 1868). Also used as a CT from SAD69 to SIRGAS-Chile - see code 7449. Note: SAD69 adopted by Chile authorities only south of 43°30'S.

SAD69 to WGS 84 (4)

EPSG:1867±8 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Brazil - onshore south of 14°S and east of 53°W
Scope:: Military survey.

Parameter	Value	Unit
X-axis translation(tx)	-60	metre
Y-axis translation(ty)	-2	metre
Z-axis translation(tz)	-41	metre

Derived at 22 stations. Accuracy 3m, 5m and 5m in X, Y and Z axes.

SAD69 to WGS 84 (13)

EPSG:1876±8 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Venezuela - onshore
Scope:: Military survey.

Parameter	Value	Unit
X-axis translation(tx)	-45	metre
Y-axis translation(ty)	8	metre
Z-axis translation(tz)	-33	metre

Derived at 5 stations. Accuracy 3m, 6m and 3m in X, Y and Z axes. Note: SAD69 not adopted in Venezuela: see PSAD56 (CRS code 4248).

SAD69 to WGS 84 (2)

EPSG:1865±9 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Argentina - mainland onshore
Scope:: Military survey.

Parameter	Value	Unit
X-axis translation(tx)	-62	metre
Y-axis translation(ty)	-1	metre
Z-axis translation(tz)	-37	metre

Derived at 10 stations. Accuracy 5m in each axis. Note: SAD69 not adopted in Argentina: see Campo Inchauspe (CRS code 4221).

SAD69 to WGS 84 (11)

EPSG:1874±9 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Peru - onshore
Scope:: Military survey.

Parameter	Value	Unit
X-axis translation(tx)	-58	metre
Y-axis translation(ty)	0	metre
Z-axis translation(tz)	-44	metre

Derived at 6 stations. Accuracy 5m in each axis. Note: SAD69 not adopted in Peru: see PSAD56 (CRS code 4248).

SAD69 to WGS 84 (6)

EPSG:1869±10 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Colombia - mainland
Scope:: Military survey.

Parameter	Value	Unit
X-axis translation(tx)	-44	metre
Y-axis translation(ty)	6	metre
Z-axis translation(tz)	-36	metre

Derived at 7 stations. Accuracy 6m, 6m and 5m in X, Y and Z axes. Note: SAD69 not adopted in Colombia: see Bogota 1975 (CRS code 4218).

SAD69 to WGS 84 (9)

EPSG:1872±12 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Guyana - onshore
Scope:: Military survey.

Parameter	Value	Unit
X-axis translation(tx)	-53	metre
Y-axis translation(ty)	3	metre
Z-axis translation(tz)	-47	metre

Derived at 5 stations. Accuracy 9m, 5m and 5m in X, Y and Z axes. Note: SAD69 not adopted in Guyana.

SAD69 to WGS 84 (1)

EPSG:1864±19 m

Method:: Geocentric translations (geog2D domain)
Area of use:: South America - onshore north of 45°S
Scope:: Military survey.

Parameter	Value	Unit
X-axis translation(tx)	-57	metre
Y-axis translation(ty)	1	metre
Z-axis translation(tz)	-41	metre

Derived at 84 stations. Accuracy 15m, 6m and 9m in X, Y and Z axes.

SAD69 to WGS 84 (5)

EPSG:1868±21 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Chile - onshore north of 45°S
Scope:: Military survey.

Parameter	Value	Unit
X-axis translation(tx)	-75	metre
Y-axis translation(ty)	-1	metre
Z-axis translation(tz)	-44	metre

Derived at 9 stations. Accuracy 15m, 8m and 11m in X, Y and Z axes. Note: SAD69 not adopted in Chile north of 43°30'S. Replaced by SAD69 to WGS 84 (17) to (19) (codes 6974, 6975 and 6976).

SAD69 to WGS 84 (3)

EPSG:1866±26 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Bolivia
Scope:: Military survey.

Parameter	Value	Unit
X-axis translation(tx)	-61	metre
Y-axis translation(ty)	2	metre
Z-axis translation(tz)	-48	metre

Derived at 4 stations. Accuracy 15m in each axis. Note: SAD69 not adopted in Bolivia: see PSAD56 (CRS code 4248).

SAD69 to WGS 84 (10)

EPSG:1873±26 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Paraguay
Scope:: Military survey.

Parameter	Value	Unit
X-axis translation(tx)	-61	metre
Y-axis translation(ty)	2	metre
Z-axis translation(tz)	-33	metre

Derived at 4 stations. Accuracy 15m in each axis. Note: SAD69 not adopted in Paraguay.

SAD69 to WGS 84 (8)

EPSG:1871±44 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Ecuador - Galapagos onshore
Scope:: Military survey.

Parameter	Value	Unit
X-axis translation(tx)	-47	metre
Y-axis translation(ty)	26	metre
Z-axis translation(tz)	-42	metre

Derived at 1 station. Accuracy 25m in each axis. Note: SAD69 not adopted in Ecuador.

SAD69 to WGS 84 (12)

EPSG:1875±44 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Trinidad and Tobago - Trinidad - onshore
Scope:: Military survey.

Parameter	Value	Unit
X-axis translation(tx)	-45	metre
Y-axis translation(ty)	12	metre
Z-axis translation(tz)	-33	metre

Derived at 1 station. Accuracy 25m in each axis. Note: SAD69 not adopted in Trinidad and Tobago.

Convert EPSG:4618 to EPSG:4326 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4618", "EPSG:4326", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4618 — SAD69

geographic system using latitude and longitude on an ellipsoid · Area of use: South America - SAD69 by country

+proj=longlat +ellps=aust_SA +no_defs +type=crs

More about EPSG:4618 →

Target: EPSG:4326 — WGS 84

geographic system using latitude and longitude on an ellipsoid · Area of use: World (by country)

+proj=longlat +datum=WGS84 +no_defs +type=crs

More about EPSG:4326 →

Frequently asked questions

How accurate is converting SAD69 to WGS 84?: The most accurate official EPSG transformation between these systems is accurate to about ±2 m within its stated area of use. Browser-based converters approximate datum shifts with Helmert parameters; for surveying-grade work apply the official transformation (including the grid-shift files listed below) in a desktop GIS.
Does my data leave the browser when I use this converter?: No. All coordinate transformations are computed locally in your browser using proj4js. The coordinates you enter are never transmitted to any server.

Need the reverse? Convert EPSG:4326 to EPSG:4618 →