Mirror Equation Calculator

Curved mirror equation (1/f = 1/v + 1/u) with radius of curvature, image position and magnification.

Also known as concave mirror calculator, convex mirror, spherical mirror formula.

Enter values

Result

Image distance

60 cm

Curved mirror equation (1/f = 1/v + 1/u) with radius of curvature, image position and magnification.

Also known as: concave mirror calculator, convex mirror, spherical mirror formula.

Enter mirror, radius of curvature, object distance.
The result updates instantly as you type — press Calculate (or Enter) at any time.
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1/f = 1/v + 1/u, f = R/2

Using the values pre-filled in the calculator above:

the calculator returns: