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Simple Linear Regression Calculator
Fit a line y = a + bx to five points.
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⚡ Instant Results
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Compare Your Options And Get Clear Answers
Fit a line y = a + bx to five points.
Simple Linear Regression Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: Least squares.
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Simple Quick Guide
Typical values for reference.
| Points | Slope | Intercept | R2 |
|---|---|---|---|
| (1,2)…(5,5) | 0.6 | 2.2 | 0.6 |
| (1,1)…(5,5) | 1.0 | 0.0 | 1.0 |
| (1,5)…(5,1) | -1.0 | 6.0 | 1.0 |
| (1,3)…(5,3) | 0.0 | 3.0 | – |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Simple Linear Regression Calculator FAQ
Answers to common questions about this calculator.
Least squares.
It gives a quick estimate of simple linear regression from the values you enter.
No. It is a planning estimate, so check important figures with a professional or official source.
Yes. Edit any field and the result updates when you calculate.