All calculatorsBusiness Statistics Calculators & Converters
From data to decisions—fast, reliable, and clear.
A/B Test Significance Calculator
Check if A/B test results are statistically significant
Average Calculator
Calculate averages and weighted means from any set of numbers
Binomial Coefficient Calculator
Compute exact combinations C(n,k) with steps, visuals, probability
Central Limit Theorem Calculator
Calculate sample mean probabilities, standard error, and quantiles using CLT
Combination Calculator
Calculate combinations C(n, k) exactly with steps and a Pascal visual
Confidence Interval Calculator
Calculate confidence intervals for means and proportions with steps
Critical Value Calculator
Find critical values for Z, t, χ², or F distributions using α and tail type
Cube Volume Calculator
Instant cube volume from edge or diagonal, with unit conversion.
Degrees of Freedom Calculator
Calculate degrees of freedom for t-tests, χ², ANOVA, F, and regression
Hardy–Weinberg Calculator
Compute allele and genotype frequencies with χ² comparison
Linear Regression Calculator
Calculate best-fit line, correlation r, and R² from your data
Mean Median Mode Calculator
Calculate mean, median, and mode from a list of numbers or a frequency table
P-Value Calculator
Compute p-values from Z, t, χ², or F test statistics with one- or two-tailed options
Permutation Calculator
Exact permutation, combination, and word-permutation results with BigInt steps
Probability Calculator
Calculate P(A), P(A ∩ B), P(A ∪ B), and P(A | B) with steps and a Venn visual.
Standard Deviation Calculator
Calculate standard deviation, variance, and mean from data
Trihybrid Cross Calculator – Punnett Square
Solve trihybrid Punnett squares and get phenotype/genotype probabilities
Z-Score Calculator
Calculate z-scores, percentiles, and reverse-solve x, μ, or σ