Looking for quick and accurate online statistics calculators? You’re in the right place. On this page, we’ve gathered a wide range of tools to help you solve common statistical problems without the stress of manual calculations. Thus, whether you need to run a t-test, compute probabilities, or even fit a regression model online, we’ve got you covered. Our free statistics calculators are easy to use, accurate, and designed to save you time.
Just choose the calculator you need, enter your data, and get instant results.
1. Probability Distribution Calculators
Understanding probability and distributions doesn’t have to be complicated. With the right tools, you can quickly find answers and make sense of data. Our Probability Distribution Calculators are designed to help you do just that. Thus, instead of getting stuck with long formulas, you only need to key in your data and get instant outputs. Use our free probability distribtion calculators and focus on interpreting the numbers.
Here are the probability and distribution calculators available for you
- Normal Distribution Calculator
- Binomial Distribution Calculator
- Poisson Distribution Calculator
- t-Distribution Calculator
- Chi-Square Distribution Calculator
- F-Distribution Calculator
- Exponential Distribution Calculator
2. Hypothesis Test Calculators
Not everyone finds statistics easy, and that’s okay. Even if you understand the formulas, it can still feel overwhelming to calculate the test statistic, p-value, or critical values for hypothesis questions. That’s where our free Hypothesis Test Calculators come in. With tools for t-tests, z-tests, chi-square, and ANOVA, you can run your tests in seconds without worrying about complex math. Just enter your data, and you’ll get instant, accurate results you can trust.
Below are the hypothesis testing calculators available for you
- Z-Test Calculator
- t-Test Calculator (One-sample, Two-sample, Paired)
- Chi-Square Test Calculator (Goodness of Fit, Independence Test)
- ANOVA Calculator (One-way, Two-way)
- Mann-Whitney U Test Calculator
- Wilcoxon Signed-Rank Test Calculator
- Kruskal-Wallis Test Calculator
3. Correlation and Regression Calculators
We know that not everybody is comfortable with statistics. In fact, many students struggle when it comes to calculating correlation coefficients or fitting regression models by hand. However, with our free Correlation and Regression Calculators, you can easily analyze the relationship between variables and make sense of your data. These calculators allow you to compute Pearson’s r, Spearman’s rank, simple linear regression, and multiple regression without the stress of manual calculations. Therefore, instead of worrying about long formulas, you simply enter your data and get instant, accurate results.
- Correlation Coefficient Calculator (Pearson, Spearman, Kendall)
- Linear Regression Calculator
- Multiple Regression Calculator
- Logistic Regression Calculator
- R-squared Calculator
4. Descriptive Statistics Calculators
We know that not everybody finds statistics straightforward. In fact, many students get confused when asked to compute measures like the mean, median, mode, variance, or standard deviation by hand. However, with our free Descriptive Statistics Calculators, you can quickly summarize and understand your data without the stress of manual work. These calculators make it easy to find key descriptive measures and present your results clearly. Therefore, instead of spending hours crunching numbers, you simply enter your data and get instant, accurate results.
- Mean, Median, Mode Calculator
- Variance and Standard Deviation Calculator
- Range, Quartiles, and IQR Calculator
- Coefficient of Variation Calculator
- Percentile Calculator
- Z-Score Calculator
5. Sample Size and Power Analysis Calculators
Figuring out how many participants you need for a study is not always easy. Even when you understand the theory, calculating sample size and statistical power can feel overwhelming. That’s why we created our free Sample Size and Power Analysis Calculators. With these tools, you can quickly determine whether your study has enough power and how large your sample should be to achieve reliable results. Instead of guessing or relying on trial and error, you simply enter a few details and get clear, accurate answers to guide your research.
- Sample Size Calculator for Proportions
- Sample Size Calculator for Means
- Cohen’s d Effect Size Calculator
- Power Analysis Calculator
- Cochran’s Sample Size Calculator
- Slovin’s Sample Size Calculator
- Taro Yamane Sample Size Calculator
- Margin of Error Calculator
6. Probability and Combinatorics Calculators
Working with probability is one thing, but once combinatorics comes in, the calculations can get tricky fast. Counting possible outcomes, arranging objects, or working out combinations often leaves students stuck in long formulas. That’s where our Probability and Combinatorics Calculators come in handy. These tools help you solve problems involving permutations, combinations, and probability rules in just a few clicks. Instead of getting lost in complex calculations, you can focus on understanding the results and applying them with confidence.
- Probability Calculator
- Combinations Calculator (nCr)
- Permutations Calculator (nPr)
- Bayes’ Theorem Calculator
7. Confidence Interval (CI) Calculators
Confidence intervals are an important part of statistics, However, calculating them by hand can be confusing. Between CI formulas for the mean, proportion, and different sample sizes, it’s easy to make mistakes. That’s why we provide free Confidence Interval Calculators to make the process simple. With these tools, you can quickly find the range that’s most likely to contain your true population value. Thus, instead of stressing over the math, you just enter your data and get clear, accurate intervals in seconds.
- Confidence Interval for Mean Calculator
- Confidence Interval for Proportion Calculator
- Confidence Interval for Variance Calculator
Ready to simplify your statistics?
Start using our free Statistics Calculators today and get instant, accurate results without the stress of manual work. Whether you’re a student, researcher, or just brushing up on stats, these tools are here to save you time and make learning easier.