Sum of Consecutive Integers

Formula

1+2+…+n = n(n+1)/2

Sum all positive integers from one through n.

Worked example

Scope and limitations

Use consistent units. The result follows the assumptions you enter.

Inputs are checked for missing values and allowed ranges. A result outside the finite numeric range is not displayed. Rounding affects display, while the calculation uses the model’s numeric precision.

Check your units and assumptions before relying on a result. Changing a label does not convert a currency or physical unit.

Formula version: 26155fd0c3b4 · Example checked: 2026-10-30

Methodology

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