With Scale Ruler you can take measurements exactly.

Take measurements as you would with a conventional ruler or choose one of several available scales.
With scales applied to Scale Ruler you can - for example - measure lengths in real estate floor plans or industrial blueprints.

Use it as a regular ruler, an engineering scale ruler or an architect scale ruler.

Scale Ruler converts taken measurements into the chosen scale and displays the actual length. Give measurements a name, store measurements and load them later again.

In some cases a calibration might be required to achieve best possible accuracy. You can calibrate Scale Ruler either with a real ruler or a usual credit card.