Coordinate Converter

The Coordinate Converter tab on the Measurements page provides real-time conversion between all supported coordinate systems. Enter a coordinate in any format and see instant conversion to all others, or use batch mode to convert many coordinates at once.

Single-Point Conversion

The single-point converter displays input fields for all four supported coordinate formats simultaneously:

Format	Fields
WGS84 Decimal	Latitude, Longitude (e.g., -27.467891, 153.023453)
DMS	Degrees, Minutes, Seconds, Hemisphere for both Latitude and Longitude
MGA2020	Easting, Northing, Zone (e.g., 502341.234 E, 6962153.456 N, Zone 56)
NZTM2000	Easting, Northing (e.g., 1756432.123 E, 5428901.456 N)

How It Works

Type into any of the format fields and all other fields update instantly. The conversion is bidirectional and real-time — there is no need to click a convert button.

For example:

Type a latitude and longitude in the WGS84 Decimal fields
The DMS, MGA2020, and NZTM2000 fields immediately populate with the equivalent values
Edit the MGA2020 Easting, and all other formats update to reflect the new position

MGA2020 Zone Selection

For MGA2020 coordinates, you must specify the zone. When converting from WGS84 or DMS, the zone is automatically determined from the longitude. When entering MGA2020 values directly, select the zone from the dropdown.

ℹ️ Did you know?

If the entered position falls outside Australian or New Zealand territory, the MGA2020 or NZTM2000 fields may show "Out of Range". This is expected — these grid systems only cover their respective countries.

Batch Conversion

Switch to batch mode to convert multiple coordinates at once. This is useful when you have a list of coordinates from a spreadsheet, survey report, or other source that need converting to a different format.

Entering Coordinates

Paste your coordinates into the text area. Each line should contain one coordinate pair. The format is auto-detected, but you can also specify it manually using the format selector.

Accepted input formats per line:

latitude, longitude (decimal degrees)
easting, northing (MGA2020 or NZTM2000, with zone specified separately)
degrees minutes seconds hemisphere (DMS)

Converting

Select the target output format and click Convert. The results appear in a table below showing each input coordinate and its converted value.

Copy and Download

Copy — copies the converted results to the clipboard in a tab-separated format suitable for pasting into a spreadsheet
Download CSV — downloads the results as a CSV file with all input and output columns

💡 Tip

Use batch conversion when you receive a set of coordinates from a surveyor in MGA2020 and need to convert them to WGS84 for use in other software, or vice versa. Paste the entire list, convert, and download the result.

Zone Auto-Detection for MGA2020

When converting from WGS84 or DMS to MGA2020, SiteView automatically determines the correct MGA zone based on the longitude:

Zone	Longitude Range	Approximate Coverage
49	108 to 114 E	Western WA coast
50	114 to 120 E	Central WA
51	120 to 126 E	Eastern WA, western NT
52	126 to 132 E	NT, western SA
53	132 to 138 E	SA, western NSW
54	138 to 144 E	VIC, eastern SA, western NSW
55	144 to 150 E	NSW, ACT, eastern VIC, TAS
56	150 to 156 E	QLD, eastern NSW

For positions near zone boundaries, both adjacent zones are valid. SiteView selects the zone where the point is closest to the central meridian by default.

Precision and Accuracy

Coordinate conversions use the standard transformation parameters for GDA2020 (MGA2020) and NZGD2000 (NZTM2000). Results are displayed to the following precisions:

WGS84 Decimal — 8 decimal places (~1mm precision)
DMS — to 0.001 seconds
MGA2020 — 3 decimal places (millimetre precision)
NZTM2000 — 3 decimal places (millimetre precision)

ℹ️ Did you know?

These conversions are mathematical transformations between coordinate systems. They do not account for local site calibrations, geoid models, or survey control adjustments. For construction setout work, always use coordinates from your surveyor's control network rather than converter output.

What's Next?

Measurement Register — browse all measurements with coordinates in your preferred format
CSV Import — import coordinate data that may need conversion
Calculator — perform distance and bearing calculations between coordinates
Coordinate Settings — set your default coordinate display format