Category · 5 units

Astronomical distances

Astronomical distance converter - convert between kilometers, astronomical units, light-years, parsecs and gigameters.

Active unit

kilometers · ≈ 100 km (base)

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4 results
  • kmkilometer100
How we calculated this
Target:
Formula
AU = km × 0.0000000067
Calculation
100 × 0.0000000067 = 0.000001
Factor
× 0.0000000067

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Related articles

An emerald parallax triangle with a star at its apex and a scale of cosmic distances, against a cosmic nebula in violet and magenta
Astronomical distances

A light-year is not time — how we measure the cosmos

Han Solo bragged he made the Kessel Run in less than twelve parsecs — but a parsec is a unit of distance, not time. We make the same slip with the light-year. Here is how astronomy handles distances that will not fit on Earth — and why our brains stumble over them.

12 min

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