Online Ruler

Real Size Online Ruler

This is an online scale ruler that can be adjusted to an actual size, the upper half is metric ruler (millimetre and centimetre), lower half is inches ruler, before you use this ruler, please set the pixels per inch to your own device.

Adjusting this virtual ruler to actual size

1. My laptop has a wide screen (13.6"x7.6"), and resolution is 1366x768 pixels, 1366 / 13.6 = 100.44 PPI.
2. Google display by pixel density, i am lucky and find my screen is 100 PPI.
3. Check what paper money in your wallet, and search "the width of paper money" online, then adjust the PPI by it.
4. The most accurate way, after i measure the size of virtual ruler by a 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.

Dragging ruler adjuster left or right to fit the size of the reference, 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.

Online Virtual Rulers

• online real size ruler : It's a good idea to check the products size, before we buying it from internet, try this virtual actural size ruler
• imperial scale ruler : Online scale ruler with imperial units(in, ft, yd, mi)
• metric scale ruler : Online scale ruler with metric units(cm, m, km)

Length Converters

• Inches to centimeters : convert inches(in) to centimeters(cm), or centimeters to inches.
• Inches to feet : convert inches(in) to feet(ft), or feet to inches.
• Millimeters to centimeters : convert millimeters(mm) to centimeters(cm), or centimeters to millimeters.
• Height conversion : convert feet and inches to centimeters, convert cm to ft and in.
• Scale converter : calculate the actual length and the scale length according to the scale ratio.

What do you think about this online ruler?

Try this ruler on your smartphone

Share to your good friends