Space · Mean-diameter reference · idealized sphere
Uranus diameter and size comparison
Uranus has a reference mean diameter of 50,724 kilometers. It is slightly wider than Neptune using the same convention, with rings and extended atmosphere excluded.
50724000 m
Sourced measurement- Measurement
- Mean diameter · twice JPL mean radius
- Subject or version
- Mean-diameter reference · idealized sphere
- In kilometers
- 50,724 km (1 km = 1,000 m)
Add more subjects or change the units in the playground.
A little more perspective
The diameter doubles JPL’s 25,362-kilometer mean radius. The separately listed 25,559-kilometer equatorial radius answers another question; neither an observing angle nor an illustrated cloud feature changes the value selected here.
The displayed diameter is 2 × 25,362 km = 50,724 km. Doubling the source radius uncertainty gives ±14 km for diameter. The source defines mean radius through an equivalent-volume sphere. Its review date is not a new measurement date.
Quick facts
Uranus has a reference mean diameter of 50,724 kilometers. It is slightly wider than Neptune using the same convention, with rings and extended atmosphere excluded.
For a presentation or a research note, include the subject, the measurement definition, and the measurement used. A picture alone cannot explain those choices. The comparison guide explains how to export an image and its source notes together.
Sources and measurement notes
Source review recorded . Maintained by Ishan Karunaratne. Suggest a correction with a source and the exact measurement being compared.