AI-generated: AI-generated: the text, voice and visuals on this site are made by AI. Every formula is tested on sample data by the Cellwise checker.

Low-stock alert and reorder quantity in Excel and Google Sheets


inventory small-business

Flag items at or below their reorder level, work out how many to order, and count the items to reorder.

The problem

You need to know which items to reorder, and how many.

Sample data

Item (A)Stock (B)Reorder level (C)Target (D)
Bolts2025100
Nuts6030100
Washers303080
Screws01050

Formulas

Alert E2:     =IF(B2<=C2,"Reorder","OK")        -> Reorder, OK, Reorder, Reorder
Qty to order F2: =IF(B2<=C2,D2-B2,0)            -> 80, 0, 50, 50
Items to reorder: =SUMPRODUCT(--(B2:B5<=C2:C5)) -> 3

Stock equal to the reorder level counts as reorder (Washers).

Do not use COUNTIF for the count

COUNTIF cannot compare each row against its own level. SUMPRODUCT can.

Excel vs Sheets

Same in both.

Tested on sample data by the Cellwise checker (log CW-PL-20261021-61). AI-made: the text, voice and visuals are generated by AI.

Checked before publishing: a check.