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SVY21 to WGS84

Enter Singapore easting and northing in metres.

Read as: SVY21 / Singapore TM
  • Decimal degreesWGS 84 1.286800, 103.854500
  • Degrees, minutes, secondsWGS 84 1°17′12.48″N 103°51′16.20″E
  • Degrees, decimal minutesWGS 84 1°17.2080′N 103°51.2700′E
  • UTMWGS 84 48N 372558 142259
  • MGRS / USNGWGS 84 48N UG 72557 42258
  • SVY21 / Singapore TMEPSG:3414 30357.31 29913.34
  • GDM2000 / RSON, E · EPSG:3375 142303.27 650906.56
  • Plus CodeOpen Location Code 6PH57VP3+PR
  • Geohash w21z76281
  • Maidenheadham radio OJ11wg

Tap the map to convert that point.

Singapore’s national plane coordinates

SVY21 / Singapore TM (EPSG:3414) is a Transverse Mercator grid based on the WGS84 ellipsoid. The projection origin is 1°22′ N, 103°50′ E, with false easting 28001.642 m and false northing 38744.572 m. It is a local Singapore grid, not a UTM zone.

This tool takes Easting first and Northing second, following SLA examples. At the SLA SNYU station, the published pair is E = 10934.735 m and N = 36436.799 m. Reversing the values can produce a plausible point elsewhere in Singapore.

Accuracy and height

The projection is checked with published SLA reference stations, agreeing within 1 mm. The catalogue uses the EPSG:8886 approximation between SVY21 and WGS84, rated at 1 m. A projection check does not establish centimetre-level agreement with every present-day GNSS realization.

The converter handles horizontal coordinates. Singapore Height Datum values are not calculated from this easting/northing pair.

Working with Singapore datasets

Choose SVY21 for a file explicitly identified as EPSG:3414. Latitude and longitude already in WGS84 can be pasted to obtain the grid coordinates in the other direction. Source: SLA: SVY21.

Frequently asked questions

Is X easting or northing?

In this converter X is easting and Y is northing. Check the column names in the original data rather than relying on X and Y alone.

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