Quadratic Formula Calculator

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About this app

Solve any quadratic equation in seconds: enter coefficients a, b, and c, and instantly get both roots of x using the quadratic formula.

**Quadratic formula applied automatically**
The app calculates x = (−b ± √(b² − 4ac)) / 2a, displays both results (x₁ and x₂), and evaluates the discriminant automatically. If the discriminant is negative, the app alerts you clearly: the equation has no real solutions. No manual steps, no calculation errors.

**How to use it**
1. Enter the value of coefficient a (cannot be zero).
2. Enter the value of coefficient b.
3. Enter the value of coefficient c (constant term).
4. Tap Calculate and get x₁ and x₂ instantly.

**For students and teachers**
Perfect for reviewing algebra in high school, SAT prep, or introductory college courses. Verify quadratic equation exercises before an exam, experiment with different values, and check your calculations on the spot. Also useful for teachers preparing examples or reviewing student work quickly.

**Cases covered**
✔ Quadratic equation with two distinct real roots
✔ Equation with a double root (discriminant equals zero)
✔ Alert when no real roots exist
✔ Supports decimal and negative coefficients

**Why this calculator**
✔ Free and no registration required
✔ Works offline, no internet needed
✔ Clean interface, no distractions, ideal for daily study
✔ Precise results for quadratic functions

Download free and solve your next quadratic equation in seconds.

What’s new

📱 Refresh and stability

We raised the Android target version to keep the app up to date, introduced a new, more modern-looking icon, and applied general code improvements so everything runs smoother.

Your feedback drives us to keep improving 💙. Rate the app and tell us what you think.