T-Table Calculator

📊 T-Table Calculator

Calculate critical values and probabilities for t-distribution

t = (x̄ - μ) / (s / √n)

df = n - 1

P(T ≤ t) = ∫ f(t) dt

Calculation Mode:

Degrees of Freedom (df):

Test Type:

Significance Level (α):

T-value:

Distribution Type

T-Distribution

Enter values to calculate

Select your parameters and click calculate

Critical Value Mode: Find the t-value for a given significance level

Probability Mode: Find the probability for a given t-value

Two-tailed: Tests for difference (≠)

One-tailed: Tests for greater than (>) or less than (<)

df	α = 0.10 (two-tail)	α = 0.05 (two-tail)	α = 0.01 (two-tail)	α = 0.05 (one-tail)	α = 0.01 (one-tail)