How do I use the Quadratic Formula Calculator?
Enter your values in the fields and the result updates instantly as you type.
Quadratic Formula Calculator
Solve quadratic equations ax² + bx + c = 0.
Any numeric value (not zero)
Any numeric value
Any numeric value
Results
Formula: x = (-b ± √(b² - 4ac)) / 2a
Invalid value for this calculator. Please enter valid numbers.
Frequently asked questions
What formula does this calculator use?
x = (-b ± √(b² - 4ac)) / 2a
Can I use decimal values?
Yes. Decimal inputs are supported for most calculators. Integer-based tools use rounded integer values where appropriate.
Is this calculator free?
Yes. CalcuNimble calculators are free and optimized for fast everyday use.