Area between curves online calculator

Plane curve area calculations is one of the main applications of definite integral.

Площадь фигуры, органиченной двумя кривыми линиями

To get an area of the plane curve depicted in figure, one need to calculate definite integral of the form:

Вычисление площади криволинейной трапеции через определенный интеграл


Functions f(x) and g(x) as a rule are known from a problem situation, abscisses of their cross points x=a and x=b need to be calculated. To do this one need to solve equation of the type:

f(x) = g(x) <=> { x1=a, x2=b }

Online area calculator based on Wolfram Alpha capable to calculate area between two crossed curves.

Choose expression input type:

Expression input type:

Choose functions variable:

Functions variable


Input the functions which area between you want to calculate:


Other useful links:

Online integral calculator
Online partial fraction decomposition calculator