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Swiss Coordinate Converter

Convert latitude/longitude, Swiss LV95 or LV03, and WGS84 UTM coordinates on this device. Paste one point or a list; no location is sent to a server.

Your inputs stay on this device. Nothing is uploaded.

Use the tool

Convert latitude/longitude, Swiss LV95 or LV03, and WGS84 UTM coordinates on this device. Paste one point or a list; no location is sent to a server.

One pair per line. Separate with semicolon, comma or tab. For UTM input, add zone and hemisphere: easting;northing;zone;N. Up to 1,000 rows.

Enter a coordinate pair or paste a list.

Approximate Swiss transformations are for navigation and general use, not cadastral surveying, engineering control or geodetic work. swisstopo reports that LV03/LV95 distortion can reach 1.6 m; its CHENyx06/FINELTRA grid is needed for centimetre-level transformation. UTM does not support polar regions; use UPS there. Check the displayed CRS and accuracy note before using any result.

Example

Bern is near LV95 E 2,600,000 m / N 1,200,000 m and LV03 E 600,000 m / N 200,000 m. A direct LV03/LV95 offset is a quick approximation, not a survey transformation.

How it works

Swiss-to-WGS84 conversion uses swisstopo’s published approximate navigation formulas. LV03↔LV95 uses only the 2,000,000 m / 1,000,000 m false-origin offset, not the CHENyx06 grid. UTM uses the WGS84 transverse Mercator projection and selects the standard zone, including Norway and Svalbard exceptions.

Frequently asked questions

Are these coordinates suitable for official surveying?

No. The Swiss formulas here are approximate and intended for navigation/general use. Official or centimetre-level LV03/LV95 transformations need the CHENyx06/FINELTRA grid and the relevant survey workflow.

Why does LV95 differ from LV03 by about 2,000,000 and 1,000,000?

Those are the false-origin offsets used to distinguish the modern LV95 values from the older LV03 values. The simple offset does not remove local distortions in LV03.

Does the tool upload my coordinates?

No. Conversion and CSV preparation run in this browser. No online geocoder or coordinate service is called.

Can I convert many rows?

Yes. Paste up to 1,000 pairs, one per line. For UTM input, each row can include its own zone and hemisphere.

Limits and accuracy

Approximate Swiss transformations are for navigation and general use, not cadastral surveying, engineering control or geodetic work. swisstopo reports that LV03/LV95 distortion can reach 1.6 m; its CHENyx06/FINELTRA grid is needed for centimetre-level transformation. UTM does not support polar regions; use UPS there. Check the displayed CRS and accuracy note before using any result.