United States calculator
Integrate the area between two quadratic curves
Enter coefficients for f(x)=ax²+bx+c and g(x)=dx²+ex+f over an interval. The calculator numerically integrates absolute separation, including crossings.
two quadratic curves
Project inputs
Area Between Curves Calculator results
How this Area Between Curves Calculator works
Composite Simpson integration of absolute separation handles curves that cross inside the interval instead of subtracting one unsigned area blindly.
Important: Numerical approximation; increase independent verification for high-stakes engineering work.
What assumptions should I verify?
Check every entered quantity, unit, rate and rule against the current U.S. source that applies to your project. The calculator does not silently substitute worldwide conventions.
Is information sent anywhere?
No. Calculations run locally in the browser and the module contains no analytics, remote requests or stored personal data.