Categories
Statistics
Mean, median, mode, standard deviation, variance and probability
28 calculators
Mean, Median, Mode Calculator
Compute mean, median and mode for any data set.
Standard Deviation Calculator
Calculate population or sample standard deviation and variance.
Random Number Generator
Generate random numbers within any range with options for duplicates.
GPA Calculator
Calculate your grade point average from course credits and grades.
Grade Calculator
Find your final class grade based on weighted assignments.
Average Calculator
Calculate the mean of numbers.
Sum Calculator
Add a list of numbers.
Variance Calculator
Calculate variance.
Quartile Calculator
Quartiles and IQR.
Percentile Calculator
Calculate percentiles.
Z Score Calculator
Calculate z-scores.
Descriptive Statistics
Full summary stats.
Statistics Calculator
All-in-one statistics calculator.
Stem and Leaf Plot
Generate stem and leaf plots.
Random Number Generator 1-10
Random 1–10.
Random Number Generator 1-100
Random 1–100.
Random Card Generator
Random playing cards.
Random Name Picker
Pick a random name.
Number & Letter Generator
Random letters and numbers.
PIN Generator
Generate random PIN codes.
Vote Percentage Calculator
Percentage of votes.
Probability Calculator
P(A and B), P(A or B).
Expected Value Calculator
Expected value of two outcomes.
Binomial Distribution
P(X = k) for a binomial.
Normal PDF Calculator
Probability density at x.
Confidence Interval (95%)
Mean ± 1.96 σ/√n.
Margin of Error Calculator
ME = z σ/√n.
Sample Size Calculator
n = (zσ/ME)².