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02Act II · 1:1 studio

Which is bigger: Montenegro or Poland?

Poland is larger: 312,679 km² versus 13,888 km² for Montenegro, about 23 times the area.

Both areas at the same scale: Montenegro and Poland. Drag the outlines, separate them and see what the Mercator map hides.

True-size comparison

Same scale. Real difference.

Drag the outlines to overlap them, or place them side by side.

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03 · Verdict

What the map gets wrong

True area tells a different story than the Mercator map.

True area ratio22.5×Larger in reality: Poland.
Mercator: estimate at the area’s center32.2×Looks larger on a Mercator map: Poland.
Why does this happen?

The Mercator projection enlarges areas more and more the farther they lie from the equator. The centers of the two areas lie about 43° (Montenegro) and 52° (Poland) from the equator. An estimate based on each center’s latitude gives an area ratio of 32.2 : 1, compared with the real ratio of 22.5 : 1. This is not a measurement of the entire outlines on a Mercator map.

Tip: You can also compare these items dynamically by clicking the link below and dragging them directly across the global interactive map.

Figures represent total surface area from the sources listed beside each subject. The overlay uses an equal-area projection. Coastal outlines are simplified and do not include all waters counted in the statistics. Their area ratio can therefore differ from the ratio of official total areas. Geometry: Natural Earth, public domain. Read the methodology ↗

Compare dynamically on map ↗Back to comparison tool ＋

Why do Montenegro and Poland look different on a Mercator map than in reality?

The Mercator projection preserves angles, which makes it useful for navigation, but it enlarges areas more and more the farther they lie from the equator. At 60° latitude, areas already appear four times larger than at the equator. A same-scale comparison like the one on this page greatly reduces that distortion.