How to Calculate Magnification?

Magnification can be calculated using a scale bar.
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Working out magnification:
  1. Measure the scale bar image (beside drawing) in mm.
  2. Convert to µm (multiply by 1000).
  3. Magnification = scale bar image divided by actual scale bar length (written on the scale bar).

What is the formula for magnification?

Let's explore the magnification formula (M= v/u) for lenses and see how to find the image height and its nature (whether it's real or virtual).

How do you calculate magnification of a drawing?

Drawing magnification = drawing size / actual size.

James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.