Optical Calculators

We're here to help you exceed the standard of care, right? Well, we use these calculators every day here at Chadwick Optical. Rather than hoard them in our own private Excel spreadsheets, we thought it would be useful to share them with the world*!

* The world may not find them very useful. When processing lenses in the US, we make some assumptions about index of refraction that seem crazy to the rest of the world.