Redshift Calculator
Calculate cosmological redshift, recessional velocity, distance, and lookback time using Hubble's law.
Inputs
nm
nm
km/s
Results
Redshift (z)
0
Velocity from Redshift
0 km/s
Distance
142.86 Mpc
Lookback Time
0.14 billion years
Relativistic Redshift0.033932
Distance0.14 Gly
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Formula
z = (λ_obs - λ_rest) / λ_restRelated Calculators
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