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How can I change the font size of plot tick labels?

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Gene Polovy
Gene Polovy on 31 Jan 2015
Commented: Yijun Li on 26 Feb 2021
I am trying to change the font size of the tick labels (the numbers) in my plots. (Just to be clear, I am NOT referring to the axis labels.)

Accepted Answer

Star Strider
Star Strider on 31 Jan 2015
Edited: MathWorks Support Team on 27 Nov 2018
You can change the font size of the tick labels by setting the FontSize property of the Axes object. The FontSize property affects the tick labels and any axis labels. If you want the axis labels to be a different size than the tick labels, then create the axis labels after setting the font size for the rest of the axes text.
For example, access the current Axes object using the gca function. Use dot notation to set the FontSize property for the Axes object. Then create an x-axis label with a different font size.
x = rand(1,100);
y = rand(1,100);
scatter(x,y)
ax = gca;
ax.FontSize = 16;
xlabel('My Label','FontSize',10)
  3 Comments
Image Analyst
Image Analyst on 31 Jan 2015
If what you say is true, then they have looked into it. It's fixed in the new version isn't it? You said it was.

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More Answers (1)

Marzena Krzek -BIO-
Marzena Krzek -BIO- on 17 Aug 2019
i have 2019b - it doesn't work for me either
  5 Comments
Yijun Li
Yijun Li on 26 Feb 2021
same problem. I am using 2019a Windows, gca.YAxis.FontSize = 40 does not change the tick font

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