This definite integral calculator is a free online tool to evaluate the value of a definite integral of a function.

It displays the result of indefinite integral, a graphical representation (for understanding) and it also shows the antiderivative of the function so that you understand the solution. You can use this calculator to make your mathematical calculations easy and faster.

## How To Use The Calculator?

**1.** Enter the **function to integrate** in integrate column.**2.** Enter the **variable of integration** in the column with placeholder “x”.**3.** Enter from and to values of the definite integral.**4.** Click on the **Submit** button**5.** You will get the value of definite integral, a graphical representation and the indefinite integral i.e antiderivative as well.

## What is a Definite Integral?

The definite integral of a function f(x) in x between limits a and b is basically the area between f(x), x=a, x=b and the coordinate axes.

If the indefinite integral of f(x) is F(x) then definite integral is F(b) – F(a).

Hope this definite integral calculator helps you in the calculations. Comment your experience with the calculator below.

Related: Definite Integral Properties

## Difference between the Definite and Indefinite Integral

Definite Integral has the **upper** and the **lower limits** which give the area under the curve of the given function as mentioned from the lower to the upper limit. It **does not have the constant** of integration.

Indefinite integral **does not have the upper and the lower limit**, and it gives a general solution to the differential equations. It **has a constant** of integration which gives the general form of integration.

**Related Calculators:** Indefinite Integral Calculator