20 of the best prompts for Google sheets formulas, step by step across 4 stages. Works with ChatGPT, Claude, and Gemini.

20 of the best prompts for Google sheets formulas, step by step across 4 stages. Works with ChatGPT, Claude, and Gemini.
Published June 27, 2026
Most people try to use AI for Google Sheets Formulas with a single vague prompt and get generic results. This guide takes a different approach: 4 targeted stages, from Draft Basic Formulas through Validate and Test Formulas, each with a prompt that gives the AI exactly the context it needs. Small business owners and marketers often struggle with creating complex formulas in Google Sheets, leading to wasted time and errors. This guide covers four essential stages that help users draft, refine, and optimize formulas, enabling them to produce accurate data analysis and reporting efficiently. Works with ChatGPT, Claude, and Gemini.
This stage focuses on creating foundational formulas that address common business needs. By drafting these formulas, users can quickly analyze data without getting bogged down in syntax.
Create a SUM formula for sales data
Write a Google Sheets formula to calculate the total sales for the specified time period of [TIME PERIOD] from the sales data in the range [RANGE]. Include any necessary conditions to filter the data by [PRODUCT CATEGORY] or [REGION], and provide the final formula in a format that can be directly copied into Google Sheets.
Write an AVERAGE formula for customer ratings
Generate a Google Sheets formula that calculates the average customer rating for [PRODUCT NAME] using the ratings in the range [RANGE]. Ensure the formula excludes any ratings below [MIN RATING] and provide the exact formula that can be directly used in a Google Sheets cell.
Construct a COUNTIF formula for leads
Construct a COUNTIF formula for Google Sheets to count the number of leads in the range [RANGE] that meet the criteria of [CONDITION]. Clearly specify the criteria, such as counting leads from [SOURCE] or leads marked as [STATUS]. Ensure that the output is a functional formula that can be directly used in a Google Sheets cell.
Develop a CONCATENATE formula for full names
Write a Google Sheets formula that concatenates first names from the range [FIRST NAME RANGE] and last names from the range [LAST NAME RANGE] into a full name format. Ensure that there is a space between the first and last names in the output. Provide the exact formula that can be directly pasted into Google Sheets for use.
Formulate a VLOOKUP for product prices
Draft a Google Sheets VLOOKUP formula to retrieve the price of [PRODUCT NAME] from the data range [RANGE]. Specify the column index number that contains the price information, and ensure that the formula includes an exact match condition. Provide the final output as a complete, ready-to-use formula.
In this stage, users will enhance their basic formulas to handle more complex scenarios. Refining formulas ensures accuracy and adaptability in various business contexts.
Enhance a SUMIF formula for sales
Refine the following SUMIF formula to total sales in the range [RANGE] based on the criteria of [CONDITION]. Provide specific examples of how to specify the criteria, such as filtering sales from [REGION] or [PRODUCT TYPE]. The output should be a precise and correctly formatted formula that can be directly used in Google Sheets.
Modify an AVERAGEIF formula for ratings
Modify the AVERAGEIF formula to calculate the average rating for [PRODUCT NAME] within the range [RANGE], using the criteria of [CONDITION]. Provide the complete formula in a clear format, and include a detailed explanation of how each component of the formula operates, particularly emphasizing the criteria used for filtering the ratings. Additionally, suggest ways to adapt the formula for various scenarios to enhance its usability.
Create a nested IF formula for lead scoring
Draft a nested IF formula to assign scores to leads based on the criteria specified in the range [RANGE]. Clearly define the scoring rules for [CRITERIA 1], [CRITERIA 2], and [CRITERIA 3], and provide the complete formula that can be directly used in Google Sheets.
Build a more complex VLOOKUP with IFERROR
Create a complex VLOOKUP formula that incorporates the IFERROR function to handle cases where [PRODUCT NAME] is not found within the specified range [RANGE]. Ensure that the formula returns a default value, such as 'Not Found', when an error occurs. Present the final formula clearly, and provide a brief explanation of how each component works, detailing the purpose of the IFERROR function and the logic behind the VLOOKUP implementation.
Create a dynamic CONCATENATE with TEXTJOIN
Write a Google Sheets formula that utilizes TEXTJOIN to dynamically concatenate values from the range [RANGE] based on the criteria specified in [CONDITION]. Include a delimiter of your choice, such as a comma or space, and ensure that the final output is presented as a clear and functional formula.
This stage focuses on optimizing existing formulas to improve performance and reduce calculation time. Optimized formulas ensure smoother operations in larger datasets.
Optimize a SUMPRODUCT formula for efficiency
Revise the existing SUMPRODUCT formula used to calculate total sales from [RANGE]. Focus on optimizing its efficiency by analyzing the current formula to identify areas for improvement, such as minimizing the range size or simplifying criteria. Provide the optimized formula in a clear format, along with a brief explanation of each modification made and the expected impact on performance. Additionally, include specific examples demonstrating how these changes enhance calculation speed with larger datasets.
Refine a complex ARRAYFORMULA for bulk calculations
Refine a complex ARRAYFORMULA for bulk calculations in Google Sheets. Analyze the existing formula applied to the range [RANGE] for the specific calculation [SPECIFIC CALCULATION]. Optimize the formula to enhance performance for large datasets by reducing calculation time and improving efficiency. Present the final optimized ARRAYFORMULA and provide a brief explanation of the changes made, highlighting how each adjustment contributes to better performance.
Streamline a COUNTIFS formula for multiple criteria
Revise the COUNTIFS formula to efficiently count entries in the range [RANGE] based on multiple criteria, including [CRITERIA 1] and [CRITERIA 2]. Ensure the formula is structured to enhance performance by minimizing calculation time. Provide the optimized formula in a clear format, and include a brief explanation of the changes made along with the reasoning behind each adjustment.
Enhance a FILTER formula for dynamic ranges
Revise the existing FILTER formula in Google Sheets to create a dynamic range that adjusts based on the criteria of [CONDITION]. Provide a step-by-step explanation of how to set up the formula, including any necessary functions or references. Include the optimized formula itself, a brief description of how it updates automatically as data changes, and any assumptions made during the optimization process.
Create a dynamic INDEX-MATCH formula
Draft a dynamic INDEX-MATCH formula to replace VLOOKUP for improved performance when searching for [PRODUCT NAME] in the range [RANGE]. Explain how to structure the formula to ensure it efficiently returns the corresponding value, and provide the exact formula as the output.
In this final stage, users will learn how to validate and test their formulas to ensure accuracy and reliability. This step is crucial for maintaining data integrity.
Test a SUM formula for accuracy
Validate the accuracy of a SUM formula in the range [RANGE]. Create a step-by-step testing guide that includes: 1) calculating the total using the formula, 2) comparing the result against the expected total of [EXPECTED TOTAL], and 3) identifying any discrepancies. Additionally, provide clear instructions for troubleshooting common errors, ensuring data integrity, and summarizing findings that highlight any issues discovered during the validation process.
Validate an AVERAGE formula with sample data
Validate an AVERAGE formula in Google Sheets using sample data from the range [RANGE]. First, input the sample data into the specified range and calculate the average using the AVERAGE function. Next, compare the calculated average to the expected result of [EXPECTED AVERAGE]. Document the validation process in a structured report that includes sections for the input data, calculated average, expected average, and any discrepancies found. Additionally, provide a brief explanation for each step taken in the validation process to ensure clarity and accuracy.
Check a VLOOKUP formula for errors
Check the following VLOOKUP formula for errors: [VLOOKUP FORMULA]. Validate it by identifying common issues such as #N/A or incorrect references in the range [RANGE]. Provide a detailed report that includes the original formula, a list of identified errors, the corrections made, and clear explanations for each adjustment to enhance understanding of how the formula works.
Test a nested IF formula for all conditions
Validate the nested IF formula located in the range [RANGE] by testing all possible conditions. For each condition, specify the expected output as [EXPECTED OUTPUT] and describe the steps to ensure that the formula returns the correct results. Provide a detailed testing process that includes examples of inputs and the corresponding outputs for verification.
Validate a COUNTIF formula against known data
Validate the following COUNTIF formula: [FORMULA] by comparing its results against the known data in the range [RANGE]. Ensure that the count matches the expected value of [EXPECTED COUNT] by detailing the steps to check the formula's accuracy, including any necessary adjustments or troubleshooting tips to resolve discrepancies.
Practice is key to improving your Google Sheets formula skills. Start by using basic formulas and gradually work up to more complex ones. Online resources, tutorials, and AI prompts can help you learn new techniques and refine your existing skills.
Common mistakes include incorrect cell references, missing parentheses, and using the wrong function. Always double-check your formulas for syntax errors and ensure that your ranges are correctly defined.
To troubleshoot formula errors, check for common issues like incorrect references, missing arguments, or data type mismatches. Use the error messages provided by Google Sheets to guide your troubleshooting process.
AI can help you quickly generate accurate formulas based on your specific needs. It reduces the time spent on trial and error, allowing you to focus on analyzing data and making informed decisions.
Yes, you can automate formula creation using Google Apps Script or by utilizing AI prompts to generate formulas based on your data requirements. This can save time and ensure consistency in your calculations.
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