Constants & Units · constant
Hubble constant (SH0ES 2022, distance ladder)
H₀ = 73.04 ± 1.04 km s⁻¹ Mpc⁻¹
- Unit
- km s⁻¹ Mpc⁻¹
- Value
- 73.04 ± 1.04
- Exact
- no
- Note
- Measured directly from Cepheids and Type Ia supernovae. Both measurements are careful; something is missing.
- Symbol
- H₀
- Category
- Cosmological
- Numeric
- 73.04
- Uncertainty
- ±1.04 (late-universe route)
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