Z-Score Calculator
Quickly compute the Z-score for any data point using our free online calculator designed for students, researchers, and data analysts.

Check It Yourself
About This Tool
Our Z-Score Calculator is a user-friendly, online tool that enables quick computation of the Z-score to measure how many standard deviations a data point is from the population mean. It is ideal for students learning statistics, researchers analyzing data distributions, and professionals performing hypothesis testing. Simply input your raw score, population mean, and standard deviation into the clearly labeled fields. The calculator processes the inputs instantly and displays the Z-score with precision, allowing users to interpret data points within the context of normal distribution.
The tool supports validation to ensure inputs are numerical and the standard deviation is non-zero. Advanced features include options to view percentile rank, confidence intervals, or save calculation history. The interface is mobile-responsive, featuring a sleek, modern design with accessible elements like high contrast text, keyboard navigation, and screen reader compatibility.
Whether you’re conducting academic work, data analysis, or preparing reports, this calculator simplifies the process, saves time, and enhances accuracy. It’s a valuable asset for anyone needing to standardize data points or perform statistical quality assessments efficiently.
How to Use
1. Enter your raw score in the 'Raw Score' field.
2. Input the population mean in the 'Mean' field.
3. Fill in the 'Standard Deviation' field with the population standard deviation.
4. Click the 'Calculate' button to see the Z-score displayed instantly.

FAQs/Additional Resources
Find Quick Answers
What is a Z-score?
How do I interpret a Z-score?
Can this tool handle large datasets?
Is this tool suitable for academic use?
Does it support unit variations?
User Reviews
See What Others Are Saying
Explore Related Tools
More Solutions for Your Needs
SIP Calculator
Quickly calculate your SIP installment with our free online tool, ideal for investors, financial planners, and anyone planning systematic investments.
Pension Payout Calculator
Easily estimate your pension payout in Malaysia using our free online calculator designed for civil service and public sector employees.
Your Feedback Matters
Help Us to Improve