Sigma Notation Calculator

This sigma sum calculator computes the sum of a series over a given interval. Fill in the variables 'from', 'to', type an expression then click on the button calculate. This summation notation calculator can sum up many types of sequencies including the well known arithmetic and geometric sequencies, so it can help you to find the terms including the nth term as well as the sum of the first n terms of virtualy any series. Σ is the symbol used to denote sum. It is the uppercase Greek letter sigma.

Sigma Notation Calculator

n =



This video introduces sigma notation and explains how to determine a sum expressed using sigma notation.

Below is a list of operators, functions and contants supported by our sum of series calculator.

Suported Operators

  • + Addition operator
  • - Subtraction operator
  • * Multiplication operator
  • / Division operator
  • ^ Power/Exponent operator
  • () Parentheses


  • pi The constant π (3.1415926535897932384626433...). It is defined as the ratio of a circle's circumference C to its diameter d.
  • e Euler's Number (2.7182818284590452353602874...), the base for the natural logarithm

Suported Functions

  • sin() sine function
  • cos() cosine function
  • tan() tangent function
  • asin() inverse sine (arcsine) function
  • acos() inverse cosine (arccos) function
  • atan() inverse tangent (arctangent) function
  • sqrt() square root function
  • log() The natural logarithm function
  • log10() The base-10 logarithm function
  • exp() e (the Euler Constant) raised to the power function
  • abs() Absolute value function


While every effort is made to ensure the accuracy of the information provided on this website, neither this website nor its authors are responsible for any errors or omissions. Therefore, the contents of this site are not suitable for any use involving risk to health, finances or property.