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Hubble Distance from Recession Velocity Calculator

d = v / H₀ — invert Hubble’s law for distance.

Compute the proper distance to a receding extragalactic object by inverting Hubble's law: d = v / H₀. Reports the distance in megaparsecs (Mpc) and millions of light-years.

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

km/s
km/s/Mpc

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

d = v / H₀ (Mpc when v is km/s and H₀ is km/s/Mpc).

In depth

Compute the proper distance to a receding extragalactic object by inverting Hubble's law: d = v / H₀. Reports the distance in megaparsecs (Mpc) and millions of light-years.