# What Is the Equal Earth Projection? The Map the UN Named, Explained

Equal Earth is a pseudocylindrical equal-area projection from 2018 that looks like Robinson but gets every country's area exactly right. Here is what it preserves, what it distorts, and when to use it.

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Equal Earth is the projection the UN General Assembly named by name in
[its September 2026 resolution](/blog/un-equal-earth-map-resolution/), and it is
younger than most people assume. It was published in 2018 by Bojan Šavrič, Tom
Patterson and Bernhard Jenny, which makes it newer than the smartphone in your
pocket.

It exists to solve a specific problem, and the problem is not mathematical. Maps
that get area exactly right had been available for over a century. The trouble
was that most people found them unpleasant to look at, so nobody used them.

![The same coloured world map on the Equal Earth projection, with rounded edges and pole lines, where every country covers its true relative area](/blog/posts/projection-equal-earth.svg)

## What it preserves

**Area, exactly.** Equal Earth is an equal-area, or equivalent, projection. Any
two regions that cover the same number of square kilometres on the globe cover
the same number of square millimetres on the map, wherever they sit on it. Africa
comes out fourteen times the size of Greenland because it is fourteen times the
size of Greenland.

This is a hard mathematical constraint, not a close approximation. It is the
same property the Albers and Lambert azimuthal projections have, and the one
Natural Earth and Robinson deliberately do not have.

## What it gives up

**Shape and angle.** This is not optional. A theorem of Gauss guarantees that no
flat map can preserve both area and shape, so a projection that locks area down
exactly has to spend the error somewhere, and Equal Earth spends it on form.
Landmasses near the edges of the map lean and stretch horizontally. Greenland
looks squashed. Alaska tilts.

**Distance and direction.** As with almost every world projection, you cannot
measure a distance off it with a ruler, and a straight line on it is not a
compass bearing.

If you need a straight line to be a constant heading, you need Mercator, and the
UN resolution says so explicitly.

## Why it looks the way it does

The technical achievement of Equal Earth is not that it preserves area. Plenty
of projections do. It is that it preserves area **while looking like a world map
people recognise**.

Its designers built it to echo the appearance of Robinson, the compromise
projection that National Geographic used through the nineties and that shaped
what a generation thinks a world map looks like. Equal Earth has the same
rounded outline, the same gently curving meridians, and the same pole lines,
which means the poles are drawn as short lines rather than pinched into single
points. Antarctica and northern Canada therefore read as places rather than as
smears along the top and bottom edge.

The comparison that matters here is with the Gall-Peters projection, which is
the equal-area map most people have actually seen, usually in a story about how
Mercator lies. Gall-Peters is also exactly equal-area, and it is famous for
looking dreadful: continents stretched into vertical ribbons. Its reputation did
real damage to the case for equal-area maps in general, because it let people
treat "honest about size" and "ugly" as a package deal.

Equal Earth is the argument that they were never the same thing.

## Where it sits among the alternatives

Equal Earth is not the only equal-area world projection, and the UN resolution
does not claim it is. Its operative text calls for equal-area projections
generally and names this one as an example, which is why France was able to
comply by adopting **Eckert IV** instead.

Eckert IV is also pseudocylindrical, also equal-area, also has a pole line, and
also dates from a century earlier (1906). Mollweide is another. The practical
differences between them are matters of proportion and edge curvature, not of
correctness. Any of the three answers the resolution.

## When to use it

Reach for Equal Earth when the map's message depends on how big places are:

- a choropleth where a reader will compare the coloured area of one country
  against another;
- population, land use, emissions, forest cover, anything measured per unit of
  ground;
- teaching material, which is the case the resolution is explicitly about;
- any map where someone might reasonably ask "wait, is Russia really that big?"

Reach for something else when area is not the point. A travel map of countries
you have visited is not making a claim about square kilometres, and Natural
Earth will usually look better. That trade-off is worth its own article, which
is the next one in this cluster.

<div class="cta">
  <p><strong>Try the projection, not the screenshot.</strong> Pick Equal Earth in the sidebar and watch the same map redraw with every area honest.</p>
  <a class="cta-button" href="https://ohmymaps.com/">Open the editor</a>
</div>

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Related reading:
[The true size of Africa](/blog/true-size-of-africa-mercator/) and
[Which map projection should you use?](/blog/which-map-projection-should-you-use/).