There are so many unit conversions in life, such as International System, Imperial System, Engineering, Heat, Fluids, Light, Electricity, Magnetism, Radiology, Biology, Chemistry, etc. However, we normally only need a subset of these conversions. With this simple app, you can add, remove, and rearrange the order of your own set of unit conversions. Do It Yourself (DIY), you can build your customized unit conversion library.