Please Note: This article is written for users of the following Microsoft Excel versions: 97, 2000, 2002, and 2003. If you are using a later version (Excel 2007 or later), this tip may not work for you. For a version of this tip written specifically for later versions of Excel, click here: Creating a Log/Log Chart.
Excel is great at automatically creating a wide variety of charts, lickety split. For some types of data, you may want to create a chart that is not readily apparently. Such is the case with a log/log chart.
The answer to this conundrum is to change which type of chart you use for your data. It seems that Excel will not allow the X axis to use a logarithmic scale for many types of charts. To specify a chart where you can use logarithmic scales on both axes, follow these steps:
Figure 1. The Chart Wizard.
If, for some strange reason, values along the X axis are still not represented in logarithmic scale, you can click on the X axis, choose to format it, and then specify a logarithmic scale.
You should note that this solution will work for many types of charts, but won't work for charts where you need to plot zero or negative values. (Those values don't have a LOG value.)
So why do you need to use a scatter chart for log/log data? Because it is the only type of chart that allows numeric values along the X axis. Other chart types use the X axis for categories of information, not numeric values.
ExcelTips is your source for cost-effective Microsoft Excel training. This tip (3025) applies to Microsoft Excel 97, 2000, 2002, and 2003. You can find a version of this tip for the ribbon interface of Excel (Excel 2007 and later) here: Creating a Log/Log Chart.
Save Time and Supercharge Excel! Automate virtually any routine task and save yourself hours, days, maybe even weeks. Then, learn how to make Excel do things you thought were simply impossible! Mastering advanced Excel macros has never been easier. Check out Excel 2010 VBA and Macros today!
Excel provides the Picture toolbar to help you modify any images in your worksheet. This tip explains how to use the toolbar ...
Discover MoreWant to add some spice to the graphics in your worksheets? There are many colors and effects in Excel that allow you take the ...
Discover MoreNeed a chart that uses two lines for axis labels? It's easy to do if you know how to set up your data in the worksheet, ...
Discover MoreFREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."
There are currently no comments for this tip. (Be the first to leave your comment—just use the simple form above!)
Got a version of Excel that uses the menu interface (Excel 97, Excel 2000, Excel 2002, or Excel 2003)? This site is for you! If you use a later version of Excel, visit our ExcelTips site focusing on the ribbon interface.
FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."
Copyright © 2017 Sharon Parq Associates, Inc.
Please Note:
This article is written for users of the following Microsoft Excel versions: 97, 2000, 2002, and 2003. If you are using a later version (Excel 2007 or later), this tip may not work for you. For a version of this tip written specifically for later versions of Excel, click here: 
Comments