True country size comparison

Compare two country outlines on the same equal-area scale, with their polygon-area ratio.

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True country size comparison processes your input in this browser. Inputs and results are excluded from analytics. Recent tools save tool names, visit counts and last-visit times. Saved tools store only their names. Draft saving is optional and stays on this device; delete saved text with the draft controls. Loading text from a URL is optional and contacts that server; its URL and your IP address are visible to the server. An optional “Use in” action keeps a handoff in this tab. The next tool removes it on arrival and ignores it if more than a minute has passed.

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First country or area

Second country or area

Answer

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Compare two country outlines on the same equal-area scale, with their polygon-area ratio.

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Precision and calculation record

Decimal places in numeric results and text downloads

Rounding changes displayed numbers, not the calculation. Text, fractions, matrices and CSV schedules keep their own formatting. Automatic keeps up to 12 significant digits, with money shown to cents where applicable.

Saved scenario

Save the current answer, then change an input to compare. This clears when you leave.

Formula and assumptions

Natural Earth 1:110 million, version 5.1.1: 177 coarse country/area features with de facto boundaries. Small states and islands are absent or simplified. Each outline is centered in a Lambert azimuthal equal-area projection with one shared scale; it is not independently resized. Area ratios use spherical polygon area, not official administrative land-area statistics. This is a dated map dataset, not a claim about current sovereignty or borders.

Automatic precision shows numbers to 12 significant digits. Thousands separators such as 1,000 are accepted; use a dot for decimals.

Same area scale. Shapes are centered separately; coastlines are simplified.

Reset reloads the tool with its starting values and releases open files and device controls. Saved drafts stay on this device until you delete them.

Links include your inputs and settings. Anyone with the link can see them, so leave out private text. Files and generated results are left out; random draws run again.

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Updated 2026-09-29

Using True country size comparison

Compare two country outlines on the same equal-area scale, with their polygon-area ratio.

Next: GeoJSON map studio

Next: Length converter

A worked example

On the same equal-area scale, the supplied United States outline has about 4.3358 times the polygon area of the Greenland outline. This compares these simplified map shapes, not official land-area statistics.

Before you use the result

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ToolOctopus. “True country size comparison.” Updated 2026-09-29. https://tooloctopus.com/true-country-size-comparison.

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