Saudi Arabia coordinate converter
Free Saudi coordinate converter: Ain el Abd 1970, Aramco Lambert, MTRF-2000, and KSA-GRF17 to WGS84 and UTM zones 36-40 — official EPSG parameters with accuracy badges.
Converter
Click the map to pick any point and convert it instantly, or enter coordinates manually.
Points project0/300
Collect named points from conversions or a pasted table, see them on the map, convert them all to one system, and download in any format. The list is stored locally in your browser only.
Paste multiple points (table/CSV)
Paste rows from Excel or a text file — the delimiter is auto-detected. Pick the column order, or leave “Auto” to guess from headers.
Thousands of points in a file? Use the batch file converter
Coordinate systems in Saudi Arabia: quick reference
Survey work in Saudi Arabia historically splits across two reference frames: the legacy Ain el Abd 1970 datum (EPSG:4204), which underpins older sheets and the petroleum sector — including the Aramco Lambert projection (EPSG:2318) used across oil and gas projects — and the modern MTRF-2000 frame (EPSG:8818), followed by the newest geodetic frame KSA-GRF17 (EPSG:9333) adopted for new work.
The Kingdom spans five full UTM zones (36 through 40), so the common site error is not only the datum but the zone: Riyadh sits in zone 38, Jeddah in 37, and the Eastern Province straddles 38 and 39. A GNSS point observed on WGS84 and plotted on an Ain el Abd sheet without a datum shift lands tens of metres off.
The converter below opens on a Riyadh sample point and lists the Saudi systems first. Enter your coordinates to get the value in every system that actually covers your point — with an honest accuracy badge per system.
| EPSG | System | Accuracy |
|---|---|---|
| 4204 | Ain el Abd(geographic) | ±0.1 m |
| 2318 | Ain el Abd / Aramco Lambert(projected grid) | ±0.1 m |
| 20438 | Ain el Abd 1970 / UTM zone 38N(projected grid) | ±0.1 m |
| 8818 | MTRF-2000(geographic) | ±0.1 m |
| 8838 | MTRF-2000 / UTM zone 38N(projected grid) | ±0.1 m |
| 9333 | KSA-GRF17(geographic) | ±0.3 m |
The tool covers 24 systems relevant to Saudi Arabia (national systems plus the WGS84 UTM zones) — the table above lists only the key ones.
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