A free app for Android, by Gigantic Apps.

Calculator Plus – All-in-one is the best and most comprehensive calculator available for your Android phone. It is one of the best apps for Android phones and tablets that can handle any kind of calculation or conversion. The app is extremely easy to use and is suitable for any level of user.

What is Calculator Plus – All-in-one?

It is designed to be used as a scientific calculator. It is an application that allows you to calculate units and units of measurement, convert between different units, calculate percentages, find the area of a circle, volume of a sphere, and the distance between two points.