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CORREL
CORREL calculates the Pearson product-moment correlation between two equal-length arrays. A result near 1 indicates a strong positive relationship, near -1 a strong negative one, and near 0 little linear association. Use it to test whether two variables move together.
Excel
=CORREL(A2:A5,B2:B5)Google Sheets
=CORREL(A2:A5,B2:B5)✓
Verified example
Computed by a real spreadsheet engine on the sample data below.
| Ad Spend | Revenue |
| 1000 | 8200 |
| 1500 | 10500 |
| 2000 | 13100 |
| 2500 | 15800 |
=CORREL(A2:A5,B2:B5)→0.9993496337
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How it works
- 1Provide two equal-length data ranges: =CORREL(A2:A5,B2:B5).
- 2CORREL returns a value between -1 and 1; values above 0.7 or below -0.7 suggest a strong relationship.
- 3Use results to decide whether a linear regression or further analysis is warranted.
Need a version for your data?
Try: “Check whether advertising spend and revenue are correlated across monthly data”