Portugal on five projections
Portugal covers 93,324 km² of ground. Mercator draws it 1.69 times over. Area and shape readings on all five projections, each one measured.
This object
- True area
- 93,324 km²
- Anchor latitude
- 39.6° N
- Angular radius
- 2.8°
- Draggable latitude range
- -82.3° … 82.4°
On five projections
Each number is measured against its own projection's equator, not against another projection. These five rows do not share an axis - they are five answers to the same question: what did this map give up to lay this place flat?
| Projection | Area distortion | Shape distortion |
|---|---|---|
| Equirectangular | 1.30 | 1.30 |
| Mercator | 1.69 | 1.00 constant |
| Natural Earth | 1.20 | 1.05 |
| Equal Earth | 1.00 constant | 1.04 |
| Gall-Peters | 1.00 constant | 1.19 |
Mercator inflates it most, 1.69 times over. Equirectangular stretches it most: its long axis is 1.30 times its short one.
The same size, drawn otherwise
These are within 5 percent of Portugal's true area, and sit at a very different latitude. It is a fact about the Earth, and it is interesting because most projections disagree with it.
- Western Sahara: Western Sahara covers 96,921 km²; this covers 93,324. They sit 15 degrees apart in latitude, and Mercator draws one 1.40 times the other.
Bigger than the map admits
These cover more ground than Portugal and Mercator draws them smaller anyway.
- Suriname: Suriname is truly 1.55 times larger, and Mercator still draws this one 1.08 times bigger.
- Nicaragua: Nicaragua is truly 1.39 times larger, and Mercator still draws this one 1.15 times bigger.
- Eritrea: Eritrea is truly 1.28 times larger, and Mercator still draws this one 1.22 times bigger.
- Benin: Benin is truly 1.26 times larger, and Mercator still draws this one 1.30 times bigger.
On an equal-area projection this section is empty, for every object there is. An equal-area map draws in proportion to true area, so it cannot draw a larger thing smaller. That is a definition, not a coincidence.
Open it in the tool
Drag Portugal across the latitude bands and the readout follows.