Actual Size Ruler
Handy Online Ruler
This is an online virtual ruler that can be adjusted to actual size,
before you use it, please set the pixels per inch to your own device.
This is useful to me and welcome to share it or use it.
Adjusting this virtual ruler to actual size
There are some ways to know the pixels per inch(PPI) to your device.
- My laptop has a wide screen (13.6"x7.6"),
and resolution is 1366x768 pixels, 1366 / 13.6 = 100.44 PPI.
Screen resolution of current device is pixels.
- Search "display by pixel density" online, check if there has your device's brand and model,
i am lucky and found my screen has 100 PPI.
- Use standard objects to compare lengths, check your wallet, use any paper money to be our compare object,
then search "the width of your paper money" online,
when you know the width, you can adjust the ruler's PPI setting by it,
you can compare to any standard object, the longer the more accurate.
- The most accurate way,
after i measure the size of virtual ruler by an actual ruler,
i found the markings are not very accurate at 30cm,
so i adjust the default pixels per inch(PPI) to 100.7,
now i get an online actual size ruler.
- Each device has it's own setting, eg. Mobile Sony Xperia C5 is 122.6 PPI
Dragging ruler adjuster left or right to fit the size of your reference object,
remember to save the setting for next time,
after save the setting, refresh your brower to check the result.
On the most popular browsers you can press the F5 key or click on the refresh button.
Translate into your native language
Are you willing to offer a native language version for your country ?
We are looking for volunteer to improve the content in your native language,
if you are interested to help this, please visit this translation page.
Below are some other language version.
What do you think about this online ruler?
Try this ruler on your smartphone
Scan QR Code To Open Browser
Share to your good friends
Welcome to share this online ruler to your freineds, if you do like it.
Length Unit Converters
Convert MM/CM to Inches :
convert mm to inches, cm to inches, inches to cm/mm,
include convert decimal inch to fractional inch (e.g. 1.45" = 1 7/16").
Converter Meters to Feet :
convert meters, feet and inches (m, ft and in), convert each other.
Convert Yards to Meters :
yards & meter converter, convert yards to meters, or meters to yards.
Convert CM to MM : convert millimetre/millimeter(mm) to centimetre/centimeter(cm), or reverse convert.
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