H3 Converter
Convert between coordinates and Uber H3 hexagonal grid cells.
How to use
- Coordinates → H3: enter a point and resolution (0–15) to get its H3 cell.
- H3 → Coordinates: paste an H3 cell to see its center, boundary, parent, and children.
- Batch (CSV) tab converts many coordinates to H3 cells at once.
H3 Cell8930e1ca2bbffff
Resolution9
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Bidirectional H3 Conversion
Encode WGS84 coordinates as H3 cells or decode an H3 cell to its center and polygon boundary. Inspect resolution, area, parent, child, and neighboring cells.
Frequently asked questions
What H3 resolution should I pick?
Resolutions run 0 (continent-scale) to 15 (sub-meter); city-scale analysis commonly starts around 7–9.
How was accuracy verified?
Against H3's own documented example values, not just an internal round-trip test.