True Size MapD3 · TopoJSON · SVG

The True Size of Countries (Mercator Map)

Drag countries on a Mercator world map to see how latitude changes their true scale in real time.

Interactive Mercator map

Move the comparison set

Drag any coloured country north or south. The map reports the projection's apparent scale at the new latitude.

SourceAll tools

On a Mercator projection map, countries far from the equator look much larger than they really are. Greenland appears about as large as Africa, yet Africa is roughly 14 times bigger. Drag a country toward the equator to watch its displayed scale update.

True area vs. apparent size on a standard Mercator world map
CountryTrue areaLatitudeApparent size
Greenland2,166,086 km²72°N≈ 10.5× true size
Russia17,098,246 km²60°N≈ 4× true size
Canada9,984,670 km²60°N≈ 4× true size
United States9,833,520 km²38°N≈ 1.6× true size
Brazil8,515,767 km²10°S≈ 1.03× true size
Australia7,692,024 km²25°S≈ 1.2× true size
India3,287,263 km²21°N≈ 1.15× true size
DR Congo2,344,858 km²≈ true size

Loading the interactive Mercator map…

No countries selected yet.

Try moving Greenland toward DR Congo to compare the contrast.

True Size Map Guide

Compare the real size of countries on an interactive world map

Drag countries across a Mercator map and compare their real geographic area while the tool reports latitude and projection scale.

How to use the true size map

  1. Choose one or more countries in the comparison set.
  2. Drag a colored country north or south on the map.
  3. Read the area, latitude, and Mercator scale factor.
  4. Reset positions whenever you want to return to the source geography.

Why Mercator maps distort country size

Mercator projection preserves local angles for navigation, but it cannot preserve area. Its scale increases with distance from the equator.

FAQ

What is a true size of countries map?

A true size of countries map lets you move countries across latitudes so you can compare their real geographic area without being misled by Mercator projection distortion.

Why do countries look different sizes on a Mercator map?

Mercator projection preserves local shape for navigation, but it stretches land near the poles. Countries such as Greenland, Canada, and Russia appear larger than their real area.

How do I compare real country sizes with this tool?

Choose countries from the comparison set, drag the colored shapes on the map, and watch the scale factor update as each country moves to a new latitude.

Does the tool compare countries by real area?

Yes. The tool shows country area and uses Mercator scale math to demonstrate how apparent size changes when a country is moved north or south.

Mercator is useful for navigation, but it does not preserve area. The country shapes and fixed area values remain unchanged as you move them.