What can be used instead of a ruler?

What can be used instead of a ruler? I need to measure small objects on my table. Thanks in advance!

If you need to measure small objects on your table and don't have a ruler, there are a few alternatives you can use. One option is to use a piece of paper or a business card as a makeshift ruler. Another option is to use your phone or computer screen, as there are many online ruler applications available. You can also try using a tape measure or a piece of string and then measure that with a standard ruler later. There are many creative solutions when it comes to measuring small objects without a ruler.