Pulkovo 1942 (SK-42) to WGS84 Converter の座標変換

Technical Summary: High-accuracy EPSG:5044 Helmert transformation for converting legacy Russian and Ukrainian SK-42 coordinates to modern WGS84.

Interactive Transformation Tool

Input Local coordinates (Latitude / Longitude) to mathematically derive WGS84 outputs using EPSG:5044 Helmert approximations.



WGS84 Latitude: -
WGS84 Longitude: -
実務リスク警告

誤った測地系（データム）の指定や、グリッド・地上補正（Grid-to-Ground）を適用しない座標変換は、1〜400mの位置ズレを引き起こします。これは測量過失請求や施工紛争の代表的な原因です。

技術事例・判例を見る 契約上の測地系リスク リスク試算シミュレーター

Geodetic Shift Tolerances

Using a generic 'null' shift rather than the official 7-parameter Gosstandart transformation introduces multi-meter horizontal errors (up to 3-5 meters).

Civil & Legal Implications

In pipeline, defense, and Eastern-European cadastral work, ignoring the Helmert rotation exposes operators to boundary encroachment and strict treaty compliance breaches.

Real-World Infrastructure Risk

A 3-meter misplacement of a high-pressure transmission pipeline in Ukraine due to SK-42 datum drift can lead to severe utility strike liabilities.

Verify Global Datums

Always validate your site data before mobilizing construction or legal teams. Use our core converters to rule out fundamental geodetic errors:

Authority よくあるご質問 (FAQ)

Why can't I just use WGS84 for SK-42 maps?

SK-42 is based on the Krassowsky 1940 ellipsoid, which has a different mathematical center than the WGS84 ellipsoid. Plotting WGS84 GPS data directly onto a legacy SK-42 map without applying the 7-parameter transformation will result in a visual shift of several meters.