# Excel SIGN Function

Summary

The Excel SIGN function returns the sign of a number as +1, -1 or 0. If number is positive, SIGN returns 1. If number is negative, sign returns -1. If number is zero, SIGN returns 0.

Purpose

Get the sign of a number

Return value

One if positive. Negative one if negative. Zero if zero.

Syntax

=SIGN (number)

Arguments

**number**- The number to get the sign of.

Usage notes

- If the number is in the range (-∞,0) SIGN(number) will return -1.
- If the number is equal to 0 SIGN(number) will return 0.
- If the number is in the range (0,∞)(number) SIGN will return 1.

## Excel Formula Training

Formulas are the key to getting things done in Excel. In this accelerated training, you'll learn how to use formulas to manipulate text, work with dates and times, lookup values with VLOOKUP and INDEX & MATCH, count and sum with criteria, dynamically rank values, and create dynamic ranges. You'll also learn how to troubleshoot, trace errors, and fix problems. Instant access. See details here.