The Quadratic Formula Calculator helps you solve for x in ax² + bx + c = 0 using the quadratic formula. Simply fill in the fields above and click Calculate to get an instant result.
This calculator is part of Calculate Wiki’s Math Calculators collection.
What You’ll Need
- A
- B
- C
Formula Used
x = (−b ± √(b² − 4ac)) ÷ (2a)
The discriminant (b² − 4ac) determines whether roots are real or complex.
Example Calculation
Using example inputs — A = 1; B = -3; C = 2 — the Quadratic Formula Calculator returns:
x₁ = 2, x₂ = 1. Discriminant = 1 (two real roots).
Helpful Information
Results from the Quadratic Formula Calculator are estimates based on standard formulas used in the math calculators field. For projects with significant cost, health, or safety implications, consider verifying results with a qualified professional.