Arithmetic Sequence Calculator
Find the terms, the nth term and the sum of an arithmetic sequence.
Runs entirely in your browser.
Arithmetic Sequence Terms, Nth Term and Sum
About Arithmetic Sequence Calculator
An arithmetic sequence adds the same amount each step. Given the first term a and the common difference d, the nth term is a + (n-1)d and the sum of the first n terms is n(2a + (n-1)d) / 2.
Both formulas are shown filled in with your numbers, not just the answers, because the working is usually the point when this comes up as homework.
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