Geographic Raster Cell Area

How to use this tool

1. Estimate a latitude-longitude cell area on a spherical Earth.
2. Set cell center latitude, cell latitude span, cell longitude span, sphere radius in the indicated units.
3. Calculate and compare spherical cell area.

Try this example

{
  "lat": 0,
  "dlat": 1,
  "dlon": 1,
  "r": 6371
}

Accuracy and scope

Idealized educational model. Enter measured values in the displayed units; real systems may require additional corrections.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.