# How do I change the font size in my legend?

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MathWorks Support Team on 27 Jun 2009
How do I change the font size of the labels in my legend? For example, how do I make the font size of the ‘One’, ‘Two’, ‘Three’, ‘Four’ labels bigger in my plot?
plot(rand(4))
lgd=legend('One','Two','Three','Four');

MathWorks Support Team on 18 Apr 2023
Edited: MathWorks Support Team on 18 Apr 2023
Starting in R2022a, you can use the fontsize function to change the font size within a figure or for a particular object, such as a legend. You can set the font size to a specific number, or you can incrementally increase/decrease the size of all the text for the object while maintaining relative size differences.
For example, this code creates a plot and a legend and sets the legend's font size to 14 points.
plot(rand(4))
lgd = legend('One','Two','Three','Four');
fontsize(lgd,14,'points')
This code decreases the font size by a factor of 0.9.
fontsize(lgd,'decrease')
R2022a also includes the fontname function, which enables you to change all the fonts within the figure or for a particular object in the figure.
For previous releases:
You can change the font size for a MATLAB legend by setting the 'FontSize' property of the Legend object.
For example, plot four lines. Create a legend and assign the Legend object to the variable 'lgd'. Then, use dot notation to access the 'FontSize' property and set the value to 14 points.
plot(rand(4))
lgd = legend('One','Two','Three','Four');
lgd.FontSize = 14;
Alternatively, you can specify the 'FontSize' property using a name-value pair argument in the 'legend' command. When including name-value pair arguments, include the legend labels in a cell array. For example:
legend({'One','Two','Three','Four'},'FontSize',14)
Walter Roberson on 20 Sep 2017
does not work
Walter Roberson on 20 Sep 2017
ali jebeli: which MATLAB version are you using?

Mukesh Jadhav on 9 Oct 2016
Here you go :
h = legend('x','y','z');
set(h,'FontSize',12);

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