## About Sum of Cubes Calculator

The online Sum of Cubes calculator is used to calculate the sum of first n cubes or the sum of consecutive cubic numbers from n_{1}^{3} to n_{2}^{3}.

## Sum of Cubes Formula

The sum of the first n cubes is equal to:

n^{2}(n + 1)^{2} / 4

The sum of consecutive cubic numbers from n_{1}^{3} to n_{2}^{3} is equal to:

n_{1}^{3} + (n_{1} + 1)^{3} + ... + n_{2}^{3} = n_{2}^{2}(n_{2} + 1)^{2} / 4 - n_{1}^{2}(n_{1} - 1)^{2} / 4