The form below allows you to enter B-V
values and convert them into temperature values, which are in terms of
the Sun's temperature (5800 K). I'll bet you're really thrilled about
this aren't you?
In this part you can input the absolute magnitude (M) of a
star and determine its luminosity - again, the value for the luminosity
is in terms of the Sun's.
In this part you can input the Luminosity and Temperature values
(like those that you got above) and determine the radius of the star.
All of these values are in terms of the Sun's values.