Internist Calculator provides the user with a set of medical formulas commonly used in the field of medicine, such as formulas for: calculating the body mass index, the creatinine clearance (several methods), osmolality calculation, sodium correction, PSI-score and Wells scores. The bulk of the formulas provided are used in the internal medicine. However, some of the formulas are used in other specialties, such as pulmonology, gastroenterology and cardiology.
Additionally, Internist Calculator provides the functionality to convert between commonly used units, such as lengths, weights and temperatures.

Key features:
• currently includes over 60 formulas, with more being planned on adding
• conversion of lengths, areas, volumes, weights, temperatures, pressures and energy.
• support for input units that are used in different countries/regions, such as Europe, US and UK. For example, the user can enter creatinine values in µmol/L (EU) or in mg/dL (US), among other units. The user can enter weights in kg or in pounds (but also in stones, grams or ounces). And so on.
• Support for exponential notation of values. For example, the user can enter 8.93e-4 in a textbox and it will be recognized as 0.000893. You can request the output of a calculation to be displayed in an exponential notation as well.
• app-specific copy and paste methods that allow the user to copy an entire value in a textbox with a tap of a button without having to select the text first. These methods are provided in addition to Windows Phone's native copy and paste functions, which can still be used to copy a value into another app on your phone.
• Copy/Paste Special allows for copying and storage of multiple values for later use (up to eight values)
• Completely free. No trials, no unlocks, no ads, no nags.