Note: Focal Length of the mirror is equal to half of the mirror curvature radius.
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The Mirror Equation equation is:
1/s0 + 1/s1 = 2/R = 1/f
Where:
s0: Object distance from the mirror, in meter
s1: Image distance from the mirror, in meter
R: Radius of curvature of the mirror, in meter
f: Focal length of the mirror, in meter

Length and distance converter