Abstract: The exact classical limits for the coefficient of variation c for the normal distribution are derived. The hand-calculating approximated classical limits for c having high accuracy are given to meet practical engineering needs. Using Odeh and Owen’s computational method and Brent’s algorithm, the tables for the r-upper exact classical limits of coefficient of variation for normal distribution are calculated for the different confidence coefficient γ, the sample size n=1(1)30,40,60,120, the sample coefficient of variation ε=0.01(0.01)0.20. It is shown that if n<8,ε<0.20, then the γ-upper exact classical limits c_u for c are slightly higher than the exact fiducial limits c_u,F for c if. n>8, c<0.02,then c_u-c_u,F<5×10^-6.