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Cartesian to Polar Calculator
Convert Cartesian coordinates (x, y) to polar form (r, theta), and back.
ruler Free Online Tool
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Polar
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Convert Cartesian coordinates (x, y) to polar form (r, theta), and back.
Cartesian to Polar Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: r = sqrt(x^2 + y^2); theta = atan2(y, x).
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
Cartesian Quick Guide
Typical values for reference.
| x | y | r | Angle |
|---|---|---|---|
| 1 | 0 | 1 | 0 deg |
| 0 | 2 | 2 | 90 deg |
| 3 | 4 | 5 | 53.13 deg |
| -1 | 1 | 1.4142 | 135 deg |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Cartesian to Polar Calculator FAQ
Answers to common questions about this calculator.
Use r = sqrt(x^2+y^2) and theta = atan2(y, x).
An arctan that returns the correct quadrant.
r = sqrt(x^2 + y^2); theta = atan2(y, x).
It is an estimate based on the inputs you enter. Check real quotes, labels or official guidance for important decisions.