Mirror Equation Calculator
Image Distance from Focal Length & Object Distance
Focal Length from Radius of Curvature
Formula
1/f = 1/do + 1/di, where f = R/2. f is focal length, R is radius of curvature, do is object distance, and di is image distance.
Frequently Asked Questions
What is the mirror equation?
The mirror equation has the same form as the thin lens equation: 1/f = 1/do + 1/di. The focal length equals half the radius of curvature: f = R/2.
What is the difference between concave and convex mirrors?
A concave mirror (positive focal length) can form both real and virtual images depending on object placement. A convex mirror (negative focal length) always forms a virtual, upright, and diminished image.
You may also need
Eye
Thin Lens Equation Calculator
Calculate image distance, object distance, or focal length using the thin lens equation: 1/f = 1/do + 1/di.
ScienceLightbulb
Snell's Law Calculator
Calculate the angle of refraction when light passes between two media using Snell's Law: n₁ sin(θ₁) = n₂ sin(θ₂).
ScienceRadio
Frequency to Wavelength Calculator
Convert between frequency and wavelength for electromagnetic waves using the relationship c = fλ, where c is the speed of light.
Science