The fastest way to get an Excel or Google Sheets formula right is to describe what you want in plain English and let AI write the formula — then paste, test, and adjust. Instead of memorizing syntax, you describe the goal ("sum sales where region is West") and get a working SUMIFS back.
Here's how to get accurate formulas from AI every time, plus a free tool that does it.
How to get the right formula from AI
- Describe the goal plainly. Say what you want to calculate and the condition — "average of column C where column A = 'done'."
- Name your columns or cells. Tell it the ranges ("data is in A2:C100") so the formula fits your sheet.
- State the tool. Excel and Google Sheets differ slightly; say which you use.
- Paste and test. Drop the formula in, check a couple of rows by hand.
- Refine if needed. If it's off, tell the AI what happened and it'll adjust.
Formulas AI handles well
-
Lookups:
VLOOKUP,XLOOKUP,INDEX/MATCH. -
Conditional math:
SUMIFS,COUNTIFS,AVERAGEIFS. -
Text:
TEXTJOIN,LEFT/RIGHT/MID,SUBSTITUTE. -
Logic: nested
IF,IFS,IFERROR. -
Dates:
EOMONTH,NETWORKDAYS,DATEDIF.
Generate formulas free with AI
The free, no-sign-up Excel Formula Generator turns a plain-English description into a ready-to-paste formula for Excel or Google Sheets. Describe the result you want and it writes the syntax.
Living in spreadsheets?
If you build sheets all day, a tech & development skill file can encode your conventions so your AI returns formulas in your preferred style. Or browse all free generators first.
Frequently asked questions
Can AI write Excel formulas?
Yes. Describe what you want in plain English and a free Excel formula generator returns a working formula; paste it in, then test a couple of rows.
Does it work for Google Sheets too?
Yes. Most formulas are shared between Excel and Google Sheets. Just say which tool you're using so the AI matches the small differences.
Why is my AI formula not working?
Usually the cell ranges don't match your sheet, or the tool differs. Tell the AI your exact ranges and whether you're in Excel or Sheets, and it'll fix it.
Do I need to know Excel functions to use this?
No. That's the point — you describe the result in plain language and let the tool handle the syntax. You only need to test the output.
Get your formula
Open the free Excel formula generator, describe what you want, and paste the result. Living in spreadsheets? Browse tech & development skills.