Science

Mars — mean diameter — volumetric mean diameter

≈ 6779.00 km

The selected volumetric mean diameter for Mars — mean diameter is 6779.00 km (approximate reference).

Published reference measurement · Catalogue uniruler-preview-2026-10-20-r5

What is being measured?

Twice JPL’s 3389.50 km volumetric mean radius. This equivalent-volume diameter differs from equatorial and polar diameters.

Use the named object, variant and dimension. A manufactured or natural object can differ from this reference.

Dimension
volumetric mean diameter
Reference value
6779.00 km
Evidence
Published reference measurement
In metres
6779000.00 m
Variant
Equivalent-volume spherical reference

Put the length in perspective

One Mars — mean diameter represents approximately 79,200,000 card lengths measured end to end. This is a length ratio; it does not calculate how the objects pack or fit.

Mars — mean diameter · 6779000.00 m

Metre · 1 m · too small to see

Foot (international) · 0.3048 m · too small to see

One of each reference, on the same linear scale. Very small lengths may not be visible. This compares length, not area or physical fit.
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