Km/s per megaparsec to km/s per million light-years
Type a value in km/s/Mpc to get it in km/s/Mly instantly.
20.66km/s/Mly
That's about the same as the Planck satellite value. Its Hubble time is 14.51 billion years.
What it means
How fast is that expansion?
The Hubble time 1/H₀ is close to, but not the same as, the age of the universe, which depends on how expansion changed over time (13.8 billion years).
The math
How to convert km/s/Mpc to km/s/Mly
To convert km/s per megaparsec to km/s per million light-years, multiply by 0.306601.
Example: 67.4 km/s/Mpc × 0.306601 = 20.6649 km/s/Mly.
In the other direction, 1 km/s/Mly = 3.26156 km/s/Mpc.
Every unit
That expansion rate in every unit
Tables
km/s/Mpc to km/s/Mly conversion table
| km/s/Mpc | km/s/Mly |
|---|---|
| 50 km/s/Mpc | 15.3301 km/s/Mly |
| 55 km/s/Mpc | 16.8631 km/s/Mly |
| 60 km/s/Mpc | 18.3961 km/s/Mly |
| 65 km/s/Mpc | 19.9291 km/s/Mly |
| 67.4 km/s/Mpc | 20.6649 km/s/Mly |
| 69.8 km/s/Mpc | 21.4008 km/s/Mly |
| 70 km/s/Mpc | 21.4621 km/s/Mly |
| 73 km/s/Mpc | 22.3819 km/s/Mly |
| 75 km/s/Mpc | 22.9951 km/s/Mly |
| 80 km/s/Mpc | 24.5281 km/s/Mly |
| 100 km/s/Mpc | 30.6601 km/s/Mly |
km/s/Mly to km/s/Mpc conversion table
| km/s/Mly | km/s/Mpc |
|---|---|
| 50 km/s/Mly | 163.078 km/s/Mpc |
| 55 km/s/Mly | 179.386 km/s/Mpc |
| 60 km/s/Mly | 195.694 km/s/Mpc |
| 65 km/s/Mly | 212.002 km/s/Mpc |
| 67.4 km/s/Mly | 219.829 km/s/Mpc |
| 69.8 km/s/Mly | 227.657 km/s/Mpc |
| 70 km/s/Mly | 228.309 km/s/Mpc |
| 73 km/s/Mly | 238.094 km/s/Mpc |
| 75 km/s/Mly | 244.617 km/s/Mpc |
| 80 km/s/Mly | 260.925 km/s/Mpc |
| 100 km/s/Mly | 326.156 km/s/Mpc |
Quick answers
Quick answers
- How many km/s/Mly is 1 km/s/Mpc?
- 1 km/s/Mpc is 0.306601 km/s/Mly.
- How many km/s/Mly is 10 km/s/Mpc?
- 10 km/s/Mpc is 3.06601 km/s/Mly.
- How many km/s/Mly is 67.4 km/s/Mpc?
- 67.4 km/s/Mpc is 20.6649 km/s/Mly.
The units
About these units
Km/s per megaparsec (km/s/Mpc)
The standard unit of H₀.
Km/s per million light-years (km/s/Mly)
The same rate per million light-years.
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