What is the Classification Metrics Calculator?
Precision, recall, F1, accuracy from a confusion matrix. The Classification Metrics Calculator is a free online tool that works instantly in your browser — no installation, no signup and nothing to upload. It sits alongside other Data Science tools on DevNibble such as Z-Score Calculator, Percentile Calculator, Correlation Calculator.
How to use the Classification Metrics Calculator
- Enter your values in the fields.
- The result is calculated instantly as you type.
- Copy the output.
Features
- Runs 100% in your browser — your data is never uploaded or stored.
- Free forever, with no account, no ads and no tracking.
- Copy or download your result in one click.
- Fast and responsive on desktop, tablet and mobile.
Frequently asked questions
Is the Classification Metrics Calculator free to use?
Yes — Classification Metrics Calculator is completely free with no sign-up, no ads and no limit on how many times you can use it.
Is my data private when I use the Classification Metrics Calculator?
Everything happens locally in your browser. Your input is never sent to a server, which makes Classification Metrics Calculator safe to use with private or sensitive data.
How do I use the Classification Metrics Calculator?
Fill in the input fields and Classification Metrics Calculator calculates the result live as you type.
What formula does the Classification Metrics Calculator use?
It applies the standard, well-established formula for this calculation and computes the answer precisely in your browser.