We numerically calculate Luttinger liquid parameter
K in the anisotropic spin XXZD models with spin
s = 1/2
, 1, and 2. In order to obtain groundstate wavefunctions in Luttinger liquid phases, we employ the
U(1)
symmetric infinite matrix product states algorithm (iMPS). By using relation between the bipartite quantum fluctuations
F and the so-called finite-entanglement scaling exponents
\kappa
, the Luttinger liquid parameter
K can be extracted. For
s = 1/2
and
D=0
, the numerically extracted Luttinger liquid parameter
K is shown to be good agreement with the exact value. On using the fact that the spin-1 XXZD Hamiltonian with
D \leqslant - 2
can be mapped to an effective spin-1/2 XXZ model, we calculate the Luttinger liquid parameter for the region of
D \leqslant - 2
. It is shown that our numerical value of the Luttinger liquid parameter agree well with the exact values, here, the relative error less than
1\%
. Also, our Luttinger liquid parameter at
\Delta = - 0.5
and
D = 0
is shown to be consistent with the result form the density matrix renormalization group (DMRG) method. These results suggest that the
U(1)
symmetric iMPS method can be applicable to calculate Luttinger liquid parameters if any system has a
U(1)
symmetry for gapless phases. For instance, we present our Luttinger liquid parameters for the first time for the spin-1 XXZD model under the other parameters and the spin-2 XXZD model with
D = 1.5
.