Hubble Law Distance Calculator
Find recession velocity from distance using Hubble's law.
Hubble's law says galaxies recede faster the farther away they are — evidence of cosmic expansion.
The math behind it
v = H₀·d, with H₀ ≈ 70 km/s per megaparsec.
Worked example
100 Mpc with H₀ = 70 → 7000 km/s.
FAQ
What is a megaparsec?
About 3.26 million light-years.