The calculation of nifty is calculated with the help of the free-float market capitalization-weighted method. And the formula for the nifty calculator is as follows:
Nifty = (CMV/ BMC) X BIV
The terms are
CMV = Current market value.
BMC = Base Market Capital
And the BIV is the Base Index Value.
Note that the base index value, in this case, is 1,000.