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Length & distance

Just how long is 1,000 miles?

Our planet

1,000 mi

Scale
1,000 miles

The quantity is exact as entered.

1,609 kmLength
0 - shared origin
Charon

Charon is a natural satellite of Pluto, composed mainly of rock and water ice.

1,212 kmMean diameter
0 - shared origin

Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions. A ruler represents the selected distance or a measurement not visible in this view.

A little perspective

1,000 miles is about 1.33 times the mean diameter of Charon.

Measurements, assumptions & sources +

1,000 miles

Length: 1,609 km; definition.

The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.

NIST — SI conversion factors

Charon

Mean diameter: 1,212 km; approximate.

Rounded mean-radius model of Charon. The derived area and volume describe a sphere; surface terrain and flattening are omitted.

NASA JPL — Planetary satellite physical parameters

The marked mean diameter is calibrated. Unmeasured illustration details are representative.

Measurement details

Why these numbers?

Compare 1,000 miles with the mean diameter of Charon. The notes below explain how each value was chosen.

1,000 miles

1,609 km

Length · definition

The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.

Charon

1,212 km

Mean diameter · approximate

Rounded mean-radius model of Charon. The derived area and volume describe a sphere; surface terrain and flattening are omitted.

Comparing
Length ↔ Mean diameter
Relative size
1,000 miles is about 1.33 times the mean diameter of Charon. 1,000 miles is approximately 32.8% greater than the mean diameter of Charon.

How to read the visual

The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.

  • The mean diameter of Charon: This is an estimate; check the notes for its rounding and uncertainty.

This comparison follows the selected length only; other dimensions may differ.

1,609,300 mmetres
5,280,000 ftfeet
1.0758 × 10⁻⁵ AUastronomical units
1.7011 × 10⁻¹⁰ lylight-years

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