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# The True Size

> A free, browser-based interactive map tool that lets users drag, drop, and rotate countries, states, provinces, and regions on a Mercator projection map to compare their true relative sizes.

## About

The True Size (thetruesize.com) was created to address a common misconception caused by the Mercator projection — the dominant map projection used in web mapping tools like Google Maps. While Mercator is excellent for navigation and preserves local shapes and angles, it significantly distorts the apparent size of landmasses as they move away from the equator. Countries near the poles appear far larger than they actually are.

The True Size lets users search for any country, state, province, or region and drag its outline to any location on the map. As the outline moves toward the equator, it shrinks to reflect its true size; as it moves toward the poles, it grows. This makes it easy to intuitively grasp just how distorted standard maps are.

## Key Features

- Drag, drop, and rotate country or region outlines freely across the map
- Compare multiple regions simultaneously by overlaying outlines
- Displays area (km²) and population data for each selected region
- Supports countries, US states, Canadian provinces, and sub-national regions
- Works entirely in the browser — no account or download required
- Free to use

## How It Works

1. Type a country, state, or region name into the search box
2. The outline appears highlighted on the map
3. Drag the outline to any location to see how its apparent size changes with latitude
4. Repeat with additional regions to compare them side by side
5. Right-click an outline to remove it from the map

Moving a region toward the equator reduces Mercator distortion and gives a more accurate sense of true size. Aligning multiple regions along the equator is the most reliable way to compare them fairly.

## Key Facts & Examples

- Greenland appears roughly the same size as Africa on a Mercator map, but Africa is actually 14.5x larger (30.4M km² vs 2.1M km²)
- Russia appears to dwarf the African continent on standard maps, but Africa is larger
- Alaska appears comparable in size to the contiguous United States, but is actually much smaller
- Antarctica appears enormous on most world maps due to extreme polar distortion

## Use Cases

- **Education**: Widely used by geography teachers and students to demonstrate map projection distortion
- **Journalism & research**: Used to provide accurate geographic context in articles and reports
- **General curiosity**: Popular tool for anyone wanting to challenge assumptions about world geography

## Popular Comparisons

- Greenland vs Africa
- Greenland vs United States
- Russia vs Africa
- Alaska vs contiguous United States
- Japan vs United Kingdom
- Brazil vs Australia
- Australia vs India
- Canada vs United States

## Limitations

- Based on the Mercator projection — outlines are corrected for area distortion but Mercator's angular/shape preservation means some visual artifacts remain
- Not intended for precise cartographic or surveying work
- Disputed territories and borders may not reflect all political perspectives

## Links

- Website: https://thetruesize.com