Online RulerPrint a Ruler on A4
Load A4 paper, select A4 in the print window, and print at Actual Size or 100%. Turn off any option that fits the page to the paper. After printing, measure the 10 cm test line with a physical ruler before using either scale.
- Both the 15 cm ruler and the 6 in ruler appear on the same sheet.
- The two scales use physical print units and are sized independently.
- The A4 setting tells the print system which sheet size to use. The scale setting controls the size of the printed marks.
- Place A4 paper in the tray you intend to use and open the print window for the AR Ruler printable page.
- Select A4 under Paper Size. If your printer asks you to confirm the tray’s paper size, select A4 there as well.
- Choose Actual Size or set the custom print scale to 100%. Turn off settings such as Fit to Page or Shrink to Fit if they appear.
- Review the preview and look for both ruler scales and the full test line. Print one sheet once all the marks you need are visible.
- Compare the printed test line with a physical metric ruler. Align zero at one end and check whether the other end reaches 10 cm.
Find the A4 setting
Paper Size may sit under More Settings or in the system print window. Check the selected printer first, since the choices can change when you switch printers. If the print window and printer panel both show a paper size, match both to the sheets in the tray.
Keep the ends visible
Look at the ends of the rulers and the test line in the preview. If a mark is clipped, check the page orientation and any margin options the print window offers. Keep the scale at Actual Size while reviewing those settings. A fit option may bring a mark back into view by changing the length of the ruler.
Use the sheet flat
Set the sheet on a flat surface. Choose the metric or inch scale and line up one end of the object with that scale’s zero. Keep the edge you are measuring parallel to the marks and read where the other end falls. The sheet can stay whole while you measure.
Can I use inches on the A4 printout?
Yes. The A4 sheet carries both scales. Use the scale marked in inches and read from its own zero.
What if A4 is missing from the print window?
Check that the intended printer is selected, then look for Paper Size in its print settings. If the printer offers no A4 option, use a printer that supports the paper you have.
What if the test line is short?
Look for a fit or shrink setting in the browser or printer panel. Set the job to Actual Size or 100%, print a fresh sheet, and measure the new line.