Yemen coordinate converter
Free Yemen coordinate converter: Yemen NGN96 (EPSG:4163), UTM zone 38, plus South Yemen and Aden 1925 datums to WGS84 — official EPSG parameters and accuracy badges.
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Coordinate systems in Yemen: quick reference
Yemen's modern national datum is Yemen NGN96 (EPSG:4163), the frame adopted for new geodetic and survey work, used in practice with UTM zone 38N (EPSG:2089), which covers the centre of the country and its capital Sanaa. NGN96 is a modern datum close to WGS84, making it the most accurate choice for GNSS observation.
Yemen carries a dual legacy, though: before the 1990 unification, the People's Democratic Republic of Yemen in the south used the South Yemen datum (EPSG:4164) with a Soviet-style Gauss-Krüger belt, zone 8 (EPSG:2395), while the earliest Aden work goes back to the Aden 1925 datum (EPSG:6881). This mix means an old southern sheet may sit on a completely different system from a northern one.
The converter below opens on a Sanaa sample point and lists the Yemeni systems first. Enter your coordinates to get the value in every system that covers your location — from modern NGN96 to the heritage South Yemen and Aden grids — each with an explicit accuracy badge.
| EPSG | System | Accuracy |
|---|---|---|
| 4163 | Yemen NGN96(geographic) | ±0.1 m |
| 2089 | Yemen NGN96 / UTM zone 38N(projected grid) | ±0.1 m |
| 4164 | South Yemen(geographic) | ±0.1 m |
| 2395 | South Yemen / Gauss-Kruger zone 8(projected grid) | ±0.1 m |
| 6881 | Aden 1925(geographic) | ±0.1 m |
The tool covers 11 systems relevant to Yemen (national systems plus the WGS84 UTM zones) — the table above lists only the key ones.
FAQ
- Which coordinate system does Yemen use?
- The modern datum is Yemen NGN96 (EPSG:4163) with UTM zone 38N (EPSG:2089) for new work. Older sheets may sit on South Yemen (EPSG:4164) in the south or Aden 1925 (EPSG:6881) around Aden.
- Which UTM zone is Sanaa in?
- Sanaa, at about 44.2°E, falls in UTM zone 38N. Most of populated Yemen lies in this zone, while the eastern reaches extend towards zone 39.
- What is the difference between the northern and southern Yemen datums?
- The north now uses NGN96 with UTM, while the south (the former People's Democratic Republic of Yemen) used the South Yemen datum with a Gauss-Krüger belt, zone 8 (EPSG:2395). After the 1990 unification, NGN96 became the unified frame for new work.
- What is the Gauss-Krüger grid in Yemen?
- Gauss-Krüger is a Soviet-style transverse cylindrical projection, applied in southern Yemen within belt 8 on the South Yemen datum (EPSG:2395). It appears on older survey sheets from the PDR Yemen era.
- What is the Aden 1925 datum?
- Aden 1925 (EPSG:6881) is a historical datum tied to the Aden area, dating to early British survey work. The tool supports it for anyone handling old Aden maps who needs to tie them to WGS84.
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