It can also be accessed in the View > Developer menu. In your browser window, you can access the Developer Toolkit by pressing Cmd + Option + I on a Mac or Ctrl + Shift + I (on a PC). To measure the “speed” of various calculations you can make use of Chrome’s Developer Tools. Measure a Google Sheet’s calculation speed So that’s measuring the size of Google Sheets, what about measuring their speed?Ĥ. New to Apps Script? Check out my beginner guide to Apps Script. I’ll do a post in the future looking specifically at how I built this tool with Apps Script. The code for this tool can also be found here on GitHub if you prefer. This Sheets audit tool shows the total number of cells in the Sheet, how many have data in them and then statistics for each individual sheet too, including how many volatile and array functions you have (CLICK TO ENLARGE):īonus: Get your own copy of this Google Sheet Audit Tool to measure the size of your Google Sheets. Using Apps Script, you can quickly build a simple tool to calculate the size of your Sheet. Within a single cell, there’s a maximum string length of 50,000 characters (enough for approximately 500 average sentences, or about 162 Tolstoy sentences). If you do something that would take you past this limit, you’ll see the following error message: Google Sheets has a maximum number of columns of 18,278 columns. adding new rows or a new Sheet), you’ll see this error message: If you do something that will take you past this limit (e.g. Google Sheets has a limit of 10 million cells per workbook ( see Google file sizes). No discussion of slow Google Sheets therefore, would be complete without first discussing the size limits of Google Sheets. Obviously if you’re dealing with large Google Sheets - Google Sheets with large amounts of data and/or formulas - then you’re more likely to see your performance suffer. Know the size limits of slow Google Sheets This is usually accompanied by your computer going into overdrive with the fan whirring loudly!Ģ. So if you see this error message, and you’ve waited a few minutes but nothing’s happening, then you might want to just bite the bullet, exit the page, and pickup again but trying a different approach this time. This is the worse case scenario, and in my experience, if this doesn’t resolve fairly quickly, you don’t often recover from here. For example, have a look at this formula that simply didn’t show a value after being entered: Your Google Sheet becomes sluggish to respond to mouse clicks or keystrokes.ĭata does not show in cell, even though you know you’ve entered data into the cell. If you’re reading this, chances are you’ll recognize some or all of the following issues.Ĭalculations in your Google Sheets are super slow and the dreaded loading bar makes an appearance every time you make a change to your Sheet. (And woe betide anyone who made a mistake with a formula!)Īlthough we’ve come a long way from those days, if you work with data a lot, chances are you’ll find yourself coming up against slow spreadsheets at some stage.Ī lot of the tips that follow are generally good spreadsheet practices anyway, so even if you only work with small Sheets at the moment, they’re worth implementing now. If you were lucky they’d be finished when you returned. I remember the old days when you would set hundreds of thousands of VLOOKUP formulas loose on your dataset and then go out for lunch. Know when it’s time to move to a database.Understand changes in the cloud can take time to propagate.Other troubleshooting tips for slow Google Sheets.Split your slow Google Sheet into separate Sheets.Use Filter, Unique and Array_Constrain functions to create smaller helper tables. Manage expensive formulas with a control switch.Use IF statements to manage formula calls.Remove volatile functions or use with caution.Convert formulas to static values wherever possible.Measure a Google Sheet’s calculation speed. What follows in this article is some suggested optimization strategies and some research into what causes slow Google Sheets. How can you speed up a slow Google Sheet?įirst off, this is a difficult question to answer because there are so many factors that may or may not be causing you to have a slow Google Sheet. We’ve all been there, stuck watching the little loading bar creep slowly, frustratingly to its conclusion: (Updated Jan 2022 to reflect the increase in the cell limit of Google Sheets to 10 million.)
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