The circle rulers published here can be printed out for your use.
A ruler that measures up to 24 cm in length and a ruler that can draw circles from 5 mm to 60 mm in diameter are available as free PDF downloads. Please print on paper, cut out and use.
Please note that some printers may not print correctly depending on the printer settings, so please be aware of this before printing. Please make sure that the length is correct before use.
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Please click the button below to download and print the PDF file.
Download Printable Circle Ruler
When you don't have a ruler, you can measure length with your smartphone.
There is no need to install an app.
Just launch the browser on your phone to measure the length.
Please select your model from the link below.
Web ruler for iphone14 and 14pro
Web ruler for iphone13 and 13pro
Web ruler for iphone12 and 12pro
Web ruler for iphone 6Plus and 6SPlus
Web Ruler for Android (Pixel7pro)
Web Ruler for Android (Pixel6pro)
Web Ruler for Android (Pixel6a)
Web Ruler for Android (Xperia10III)
Web Ruler for Android (AQUOSsense4)
Web Ruler for Android (GalaxyS21+5G)
Web Ruler for iphoneX and XS (inch)
Web Ruler for iphone6 and 6S (inch)
Web Ruler for iphone5 and 5S (inch)
There is also a service to download printed rulers that can print and measure up to 1 meter, printed triangular rulers that can measure up to 10 cm, circular rulers that can measure from 5 mm to 60 mm in diameter, and bamboo shaku that can measure up to 4 shaku.
Go to Triangle Ruler for Printing
Go to Printable Circle Ruler Page
Go to actual size bamboo scale for printing
For requests or inquiries about the site, please fill out the form using the button below.