Coordinates to S2 Cell Converter
Coordinates to S2 Cell Converter with Cell ID, token, level, boundary, and center coordinates.
How to use
- Enter a coordinate and S2 level (0–30) to get its Cell ID, token, and boundary.
- Click a Parent, Child, or Neighbor cell to jump to it and recompute everything.
- Click the map to set the input coordinate directly, or use the current map center.
- Batch (CSV) tab converts many coordinates to S2 cells at once.
Seoul City Hall example
Lower level = larger cells, higher level = smaller cells.
Cell ID3854134520986992640
Token357ca2ed4
Level15
Cell Center37.567978, 126.976941
Approx. Cell Area6.0739 ha
Map
Loading map…
Click the map to set the input coordinate there.
Cell Hierarchy
Current CellLevel 15357ca2ed4
Parent Level
Child Cells (Level 16)
| Token / ID | Level | Center | |
|---|---|---|---|
357ca2ed1 3854134520181686272 | 16 | 37.568310, 126.977613 | |
357ca2ed3 3854134520718557184 | 16 | 37.568799, 126.976270 | |
357ca2ed5 3854134521255428096 | 16 | 37.567645, 126.976270 | |
357ca2ed7 3854134521792299008 | 16 | 37.567157, 126.977613 |
Neighbor Cells
| Token / ID | Level | Center | |
|---|---|---|---|
357ca2f2c 3854134544609312768 | 15 | 37.565670, 126.976941 | |
357ca2edc 3854134523134476288 | 15 | 37.567000, 126.979627 | |
357ca2ecc 3854134518839508992 | 15 | 37.570285, 126.976941 | |
357ca292c 3854134132292452352 | 15 | 37.568955, 126.974255 |
What is S2?
S2 Geometry divides the Earth's surface into a hierarchy of cells for efficient spatial indexing. Each cell has a parent-child relationship, and higher levels subdivide into smaller cells.
Processed locally in your browser — coordinates are never sent to a server.
How it works
- Enter coordinates or an S2 Cell ID/token for this direction.
- Review the converted cell or center coordinates.
- Inspect the S2 boundary on the map.
Supported range
Supports S2 levels 0 through 30 and decimal Cell IDs or canonical tokens.
Important notes
Decoded coordinates represent the S2 cell center.