Apparently, the currently accepted value for this parameter is 70.8km/sec/Mparsec.
What is this value in terms of Planck Units? yknow, planck length and plank interval?
http://graham.main.nc.us/~bhammel/PHYS/planckunits.html
Hubble constant in Planck Units?
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Enola Straight
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Hubble constant in Planck Units?
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Kuroneko
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Re: Hubble constant in Planck Units?
The unit of the Hubble parameter is actually inverse-time, and (km/s)/Mpc is only used for convenience. Maybe it'll be easier for you to think about in terms of Hubble time 1/H0 instead, which is 13.8Ga = 4.36E17s **. In Planck units, that's 8.08E60 tp, so the Hubble parameter proper is 1.24E-61 tp-1.
** Mpc/km = 3.09E19.
** Mpc/km = 3.09E19.
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