Standard Z Critical Value Calculator , Table & Formulas

 

Z Critical Value Table

z Probability (Area under Curve)
0.01 -2.3263
0.02 -2.0537
0.03 -1.8808
0.04 -1.7507
0.05 -1.6449
0.06 -1.5548
0.07 -1.4758
0.08 -1.4051
0.09 -1.3408
0.10 -1.2816
0.11 -1.2265
0.12 -1.175
0.13 -1.1264
0.14 -1.0803
0.15 -1.0364
0.16 -0.9945
0.17 -0.9542
0.18 -0.9154
0.19 -0.8779
0.20 -0.8416
0.21 -0.8064
0.22 -0.7722
0.23 -0.7388
0.24 -0.7063
0.25 -0.6745
0.26 -0.6433
0.27 -0.6128
0.28 -0.5828
0.29 -0.5534
0.30 -0.5244
0.31 -0.4959
0.32 -0.4677
0.33 -0.4399
0.34 -0.4125
0.35 -0.3853
0.36 -0.3585
0.37 -0.3319
0.38 -0.3055
0.39 -0.2793
0.40 -0.2533
0.41 -0.2275
0.42 -0.2019
0.43 -0.1764
0.44 -0.151
0.45 -0.1257
0.46 -0.1004
0.47 -0.0753
0.48 -0.0502
0.49 -0.0251
0.50 0
0.51 0.0251
0.52 0.0502
0.53 0.0753
0.54 0.1004
0.55 0.1257
0.56 0.151
0.57 0.1764
0.58 0.2019
0.59 0.2275
0.60 0.2533
0.61 0.2793
0.62 0.3055
0.63 0.3319
0.64 0.3585
0.65 0.3853
0.66 0.4125
0.67 0.4399
0.68 0.4677
0.69 0.4959
0.70 0.5244
0.71 0.5534
0.72 0.5828
0.73 0.6128
0.74 0.6433
0.75 0.6745
0.76 0.7063
0.77 0.7388
0.78 0.7722
0.79 0.8064
0.80 0.8416
0.81 0.8779
0.82 0.9154
0.83 0.9542
0.84 0.9945
0.85 1.0364
0.86 1.0803
0.87 1.1264
0.88 1.175
0.89 1.2265
0.90 1.2816
0.91 1.3408
0.92 1.4051
0.93 1.4758
0.94 1.5548
0.95 1.6449
0.96 1.7507
0.97 1.8808
0.975 1.96
0.025 -1.96
0.98 2.0537
0.99 2.3263
0.005 -2.5758
0.995 2.5758

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