Copy and paste the HTML below to add the Contact Lens Fitting Diameter & Base Curve Calculator to your website.
Compare long-term costs of different contact lens solutions: daily disposables, weekly, monthly. Account for bulk discounts and solution replacement schedules.
Calculate the focal length of a lens using the lens maker's formula based on radii of curvature and refractive index.
Compare eyeglass prescription strengths across different lenses. Calculate effective optical power, visual acuity impact, and how prescription changes affect daily activities like driving, reading, and screen use.
Compare annual cost and plastic waste between daily disposable and monthly reusable contact lenses, including solution expenses.
Calculate image distance and magnification using the thin lens formula and object height.
Compute the relative arrival time between multiple images of a point-mass gravitational lens using the full Fermat potential.