What is the Lens Formula Calculator?

The Lens Formula Calculator allows you to calculate the object distance, image distance, or focal length of a lens using the lens formula 1f=1v+1u\frac{1}{f} = \frac{1}{v} + \frac{1}{u}f1​=v1​+u1​. By entering any two of these three values, the calculator determines the third automatically. This tool helps students, optics enthusiasts, and engineers quickly analyze lens systems without manual computation.

How to Use:

1. Enter Object Distance (u): Input the distance from the object to the lens in meters.
2. Enter Image Distance (v): Input the distance from the image to the lens in meters.
3. Optional – Enter Focal Length (f): Input the focal length of the lens in meters if known.
4. Click “Calculate”: The calculator computes the missing value using the lens formula.
5. Review the Result: Use this value to solve lens problems, analyze optical systems, or design experiments.