Tip: Other languages are Google-Translated. You can visit the English version of this link.
Log in
x
or
x
x
Register
x

or

How to count consecutive duplicates in Excel?

To count the duplicates in an Excel column may be easy for you, but have you ever tried to count the consecutive duplicates yet? In other words, it will count continuous duplicates and recount it from 1 if there is a break between the duplicates as below screenshot shown.
doc count consecutive duplicates 1

Count consecutive duplicates with formula

Office Tab Enable Tabbed Editing and Browsing in Office, and Make Your Work Much Easier...
Kutools for Excel Solves Most of Your Problems, and Increases Your Productivity by 80%
  • Reuse Anything: Add the most used or complex formulas, charts and anything else to your favorites, and quickly reuse them in the future.
  • More than 20 text features: Extract Number from Text String; Extract or Remove Part of Texts; Convert Numbers and Currencies to English Words.
  • Merge Tools: Multiple Workbooks and Sheets into One; Merge Multiple Cells/Rows/Columns Without Losing Data; Merge Duplicate Rows and Sum.
  • Split Tools: Split Data into Multiple Sheets Based on Value; One Workbook to Multiple Excel, PDF or CSV Files; One Column to Multiple Columns.
  • Paste Skipping Hidden/Filtered Rows; Count And Sum by Background Color; Send Personalized Emails to Multiple Recipients in Bulk.
  • Super Filter: Create advanced filter schemes and apply to any sheets; Sort by week, day, frequency and more; Filter by bold, formulas, comment...
  • More than 300 powerful features; Works with Office 2007-2019 and 365; Supports all languages; Easy deploying in your enterprise or organization.

arrow blue right bubble Count consecutive duplicates with formula


To count consecutive duplicates, just need to apply a simple formula.

1. Select an adjacent cell, B1 for instance, enter 1. See screenshot:
doc count consecutive duplicates 2

2. In the next cell below 1, B2 for instance, enter this formula =IF(A2=A1,B1+1,1), then drag autofill handle down to the cells to apply this formula. See screenshot:
doc count consecutive duplicates 3

Note: in the formula, A1 and A2 is the first two values in the list you want to count consecutive duplicates, B1 is the cell you enter number 1 in the first step, you can change them as you need.

Tip.If you want to quickly select and count the duplicates or unique values in a list, please try to use the Kutools for Excel’s Select Duplicate & Unique Cells as shown in the following screenshot. It’s full function without limitation in 60 days, please download and have a free trial now.

doc count consecutive duplicates 4


Kutools for Excel Solves Most of Your Problems, and Increases Your Productivity by 80%

  • Reuse: Quickly insert complex formulas, charts and anything that you have used before; Encrypt Cells with password; Create Mailing List and send emails...
  • Super Formula Bar (easily edit multiple lines of text and formula); Reading Layout (easily read and edit large numbers of cells); Paste to Filtered Range...
  • Merge Cells/Rows/Columns without losing Data; Split Cells Content; Combine Duplicate Rows/Columns... Prevent Duplicate Cells; Compare Ranges...
  • Select Duplicate or Unique Rows; Select Blank Rows (all cells are empty); Super Find and Fuzzy Find in Many Workbooks; Random Select...
  • Exact Copy Multiple Cells without changing formula reference; Auto Create References to Multiple Sheets; Insert Bullets, Check Boxes and more...
  • Extract Text, Add Text, Remove by Position, Remove Space; Create and Print Paging Subtotals; Convert Between Cells Content and Comments...
  • Super Filter (save and apply filter schemes to other sheets); Advanced Sort by month/week/day, frequency and more; Special Filter by bold, italic...
  • Combine Workbooks and WorkSheets; Merge Tables based on key columns; Split Data into Multiple Sheets; Batch Convert xls, xlsx and PDF...
  • More than 300 powerful features. Supports Office/Excel 2007-2019 and 365. Supports all languages. Easy deploying in your enterprise or organization. Full features 30-day free trial.
kte tab 201905

Office Tab Brings Tabbed interface to Office, and Make Your Work Much Easier

  • Enable tabbed editing and reading in Word, Excel, PowerPoint, Publisher, Access, Visio and Project.
  • Open and create multiple documents in new tabs of the same window, rather than in new windows.
  • Increases your productivity by 50%, and reduces hundreds of mouse clicks for you every day!
officetab bottom
Say something here...
symbols left.
You are guest ( Sign Up? )
or post as a guest, but your post won't be published automatically.
Loading comment... The comment will be refreshed after 00:00.
  • To post as a guest, your comment is unpublished.
    Kao Tupitec · 1 years ago
    thank you. It helped me. I looked for the solution in regex and did not find