How to convert units in excel without writing multiply formulas or helper columns
- Step 1Upload the file with unit columns — Drop the .xlsx or .csv containing columns to convert.
- Step 2Define rules per column — Enter column name, Multiply or Divide, and the factor for each column.
- Step 3Download the converted file — All columns are converted in one pass. No helper columns in the output.
Frequently asked questions
What is the fastest way to convert a single column in Excel without this tool?+
Enter the factor in an empty cell, copy that cell, select the target column, Paste Special → Multiply. This avoids a helper column but still requires several steps.
Does it change the data type of converted cells?+
No. Numeric cells remain numeric after multiplication or division.
Can I undo a conversion I applied incorrectly?+
Keep the original file. Conversions are applied to the output only — the uploaded original is unchanged.
Privacy first
Every JAD Excel tool runs entirely in your browser using SheetJS and ExcelJS. Your spreadsheets, formulas, and data never leave your device — verified by zero outbound network requests during processing.