Physics

Magnification Calculator

Find magnification from image and object distances.

Image distance

Object distance

Calculated Output

Magnification (x) -0.5

Formula: m = − image distance ÷ object distance

Step-by-Step Breakdown

1. Values used:

2. Image distance = 15

3. Object distance = 30

5. Magnification = -0.5x

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The math behind it

m = − image distance ÷ object distance. |m| > 1 enlarges; negative means inverted.

image 15, object 30 → −0.5 (half size, inverted).

Negative?

The image is upside-down (real image).