Grid Picker

Answer a few questions about what you need and M3S ranks the grid systems that fit best. Everything runs in your browser — nothing is sent anywhere.

Tip

Leave a question on Any / Don’t care to ignore it. Mark a property Required to exclude grids that lack it. The ranking and the why update live as you change answers.

Cell shape

Any Square Hexagon Pentagon Rectangle Sph. quad

Properties needed

Equal-area cells

Don’t care Nice to have Required

Exact nesting

Don’t care Nice to have Required

Global ±90°

Don’t care Nice to have Required

Km-labelled sizes

Don’t care Nice to have Required

Precision needed

Any Coarse (100+ km) Medium (km) Fine (metres)

Primary use case

Any Equal-area analytics Hex aggregation Database indexing Web map tiles Military / surveying Marine / fisheries Address replacement Amateur radio Global / planetary

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Prefer a static reference? The Choosing a Grid page has the full feature matrix, size tables, and per-property breakdowns.