Rest the object on the zero line. Hover the ruler, or drag on the blank area to measure between two points.
Inch ruler
An inch ruler for screws, screens, and sizes written in inches. The long mark is 1 inch, the middle mark is half an inch. 1 inch = 2.54 cm.
Inches on this ruler
The home ruler counts centimetres. This page uses the same saved scale and draws inches. If you already matched a card, you do not measure again; the record stays in this browser.
Where is 1 inches on a ruler on a ruler?
1 inches on a ruler is 2.54 cm, 25.4 mm and 1 inches from zero. The blue line on the left ruler ends at that length.
What is 1 inches on a ruler in the other units?
1 inches on a ruler equals 2.54 cm = 25.4 mm.
Is 1 inches on a ruler true to size on the screen?
After you match a card, the blue line is that real length on this screen. A browser cannot read physical millimetres, so the first scale is only an estimate. Keep zoom at 100%.