Image Markup Tool

Instructions:

or drag&drop an image anywhere onto this page. The picture will be scaled to fit the page width.
Create the reference dimension (red) by click-and-dragging the first measurement line onto an object with known size.
Create measurement lines (green) by click-and-dragging (remove them by clicking on the 'remove' link in the measurement table below).
Enter the actual length of the first dimension as reference (e.g. cm ruler) - the other measurements will be scaled accordingly.

Hints:

Hold (or click to toggle) CTRL while dragging to "snap" horizontal/vertical lines
Press (or click) ESC to abort drawing the current line or clear all measurements. Hit it twice within 1 second to clear the image.
Hit (or click) DEL to remove the last measurement

Known dimension: cm

Filename:

CTRLESCDEL

No measurements yet.

Length

Width

Area

Area Calc:

No measurements yet.