EndMyopia Diopter Calculator
The Android app Diopter Calculator allows one to estimate centimeter measurements using a front facing phone camera to estimate distance to the selfie's nose.
![](/images/thumb/3/36/Diopter_Calculator_Android.jpg/400px-Diopter_Calculator_Android.jpg)
Diopter Calculator on Google Play Store
The web tool
The EndMyopia Diopter Calculator is an online tool used to calculate diopters from edge of blur. It can form a good starting point for where to reduce from.
More information about how to use the tool here