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Convert Old Hawaiian to WGS 84

Convert coordinates from Old Hawaiian (EPSG:4135) to WGS 84 (EPSG:4326) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

Direct link to this transformation: epsgtransform.com/transform/epsg-4135-to-epsg-4326

Official EPSG transformations from Old Hawaiian to WGS 84

The EPSG Geodetic Parameter Dataset defines 7 transformations between Old Hawaiian (EPSG:4135) and WGS 84 (EPSG:4326). Each applies to a specific area — pick the one whose area of use covers your data.

Old Hawaiian to WGS 84 (2)

EPSG:8582±1.5 mBest accuracy
Method:
Concatenated operation
Area of use:
USA - Hawaii - onshore
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.
  1. Old Hawaiian to NAD83 (1) (null)
  2. NAD83 to WGS 84 (45) (null)

Transformation steps are from Old Hawaiian to NAD83(HARN) (1) (code 8508) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.

Old Hawaiian to WGS 84 (8)

EPSG:15840±2 m
Method:
NADCON
Area of use:
USA - Hawaii - onshore
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 files: hawaii.lashawaii.los

Parameter files are from Old Hawaiian to NAD83 (1) (code 1454) assuming that NAD83 is equivalent to WGS 84 within the accuracy of the transformation.

Old Hawaiian to WGS 84 (7)

EPSG:15828±14 m
Method:
Geocentric translations (geog2D domain)
Area of use:
USA - Hawaii - Oahu - onshore
Scope:
Military survey.
ParameterValueUnit
X-axis translation(tx)58metre
Y-axis translation(ty)-283metre
Z-axis translation(tz)-182metre

Derived at 8 satellite stations. Accuracy +/- 10m in X axis, +/- 6m in Y and Z axes.

Old Hawaiian to WGS 84 (5)

EPSG:15826±35 m
Method:
Geocentric translations (geog2D domain)
Area of use:
USA - Hawaii - Kauai - onshore
Scope:
Military survey.
ParameterValueUnit
X-axis translation(tx)45metre
Y-axis translation(ty)-290metre
Z-axis translation(tz)-172metre

Derived at 3 satellite stations. Accuracy +/- 20m in each axis.

Old Hawaiian to WGS 84 (3)

EPSG:15824±38 m
Method:
Geocentric translations (geog2D domain)
Area of use:
USA - Hawaii - onshore
Scope:
Military survey.
ParameterValueUnit
X-axis translation(tx)61metre
Y-axis translation(ty)-285metre
Z-axis translation(tz)-181metre

Derived at 15 satellite stations. Accuracy +/- 25m in X axis, +/- 20m in Y and Z axes.

Old Hawaiian to WGS 84 (4)

EPSG:15825±44 m
Method:
Geocentric translations (geog2D domain)
Area of use:
USA - Hawaii - island of Hawaii - onshore
Scope:
Military survey.
ParameterValueUnit
X-axis translation(tx)89metre
Y-axis translation(ty)-279metre
Z-axis translation(tz)-183metre

Derived at 2 satellite stations. Accuracy +/- 25m in each axis.

Old Hawaiian to WGS 84 (6)

EPSG:15827±44 m
Method:
Geocentric translations (geog2D domain)
Area of use:
USA - Hawaii - Maui; Kahoolawe; Lanai; Molokai - onshore
Scope:
Military survey.
ParameterValueUnit
X-axis translation(tx)65metre
Y-axis translation(ty)-290metre
Z-axis translation(tz)-190metre

Derived at 2 satellite stations. Accuracy +/- 25m in each axis.

Convert EPSG:4135 to EPSG:4326 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4135", "EPSG:4326", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4135 — Old Hawaiian

geographic system using latitude and longitude on an ellipsoid · Area of use: USA - Hawaii - onshore

+proj=longlat +ellps=clrk66 +towgs84=61,-285,-181,0,0,0,0 +no_defs +type=crs
More about EPSG:4135 →

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 Old Hawaiian to WGS 84?
The most accurate official EPSG transformation between these systems is accurate to about ±1.5 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:4135 →