- Distortion class
- Conformal
- Graticule type
- Square
- Creator
- Athelstan Spilhaus (based on Adams' 1925 World in a Square II projection)
- Year
- 1979
- Area
- Highly distorted: the conformal projection greatly enlarges land near the edges and corners of the square (on our map especially Argentina, China, Canada, and the USA)
- Shape
- Preserved locally (conformal), except at the four corners of the square
- Distances
- Distorted across the globe; scale varies greatly between the center and the edges of the square
- Angles and directions
- Preserved locally (conformal), except at the four corners of the square
Add countries from the tools panel and drag them to other latitudes. The outline keeps its true shape and area on the globe, so any change in its size on the map shows this projection's distortion. Tissot's indicatrices and the area distortion map show the same effect across the whole world.