Pluto vs Australia
Pluto is 2,377 km across, a little over half the width of Australia. The New Horizons flyby in 2015 gave the first precise measurement.
| Object | Real size | Source | |
|---|---|---|---|
| PlutoDiameter, averagePublished dimension. See the measurement record for scope, date and conversions. | 2,376.6 km1,477 mi | Mean diameter, calculated as twice the mean radius; excludes rings and atmosphere limb effects. NASA/JPL Solar System Dynamics Measurement recordSource checked | |
| AustraliaAreaPublished dimension. See the measurement record for scope, date and conversions. | 7,692,024 km²2,969,906 sq mi | Australia including Norfolk Island; excludes external Antarctic claims. United Nations Statistics Division Measurement recordSource checked |
What measurements does this comparison use?
The reference values used here are 2,376.6 km for Pluto (Diameter, average) and 7,692,024 km² for Australia (Area). The table links to background sources; natural objects and manufactured variants can differ from these reference values.
How should I read the drawing?
Australia spans about 1.7× as much as Pluto across the longest side of each drawing. This is a linear scale comparison, not a comparison of mass or volume. For maps, the table reports area; doubling a map’s width and height multiplies its area by four.
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