Quadratic Equation Solver
Solve ax² + bx + c = 0 for real and complex roots
Enter coefficients for ax² + bx + c = 0:
Enter coefficients a, b, c to solve the equation
About Quadratic Equation Solver
A quadratic equation ax² + bx + c = 0 is solved using the quadratic formula: x = (-b ± √Δ) / (2a), where Δ = b² - 4ac is the discriminant. The vertex of the parabola is at x = -b/(2a), y = f(-b/(2a)).
About this Calculator
The Quadratic Formula Calculator is a free, easy-to-use tool for equation, roots, parabola. Simply enter your values and get instant, accurate results — no signup, no ads, no tracking. All calculations run locally in your browser, so your data stays completely private.
Privacy Note: All calculations are performed locally in your browser. No data is ever sent to a server or third party.