Creating BMI Calculator using Calculated Field

Building a BMI Calculator with Nested Calculated Fields

Step-by-Step Guide:

1. Introduction:

   • The tutorial starts with an overview of using Calculated Fields within Calculated Fields to build a BMI calculator. This method involves converting user-inputted weight and height into BMI.

2. Gathering User Inputs:

   • Users are prompted to enter their weight in kilograms and their height in feet and inches through number fields and dropdowns.

3. Converting Units:

   • Weight Conversion: A Calculated Field converts the weight from kilograms to pounds using the conversion rate (1 kg = 2.2 pounds).
   • Height Conversion: Another Calculated Field converts the height from feet and inches to total inches.

4. Calculating BMI:

   • A final Calculated Field calculates the BMI using the formula: [weight in pounds]/([height in inches]^2)×703.
   • The tutorial provides detailed instructions on setting up these calculations within the form builder.

5. Enhancing User Experience:

   • To streamline the user interface, intermediate calculations (weight in pounds and height in inches) are hidden from the user.
   • The final output, BMI, is displayed in a user-friendly format, ensuring that the calculations are transparent and the interface remains clean.

6. Publishing and Testing:

   • The form is published, and the tutorial demonstrates entering data to showcase the BMI calculation in action.
   • Tips on hiding calculation fields from the user view to keep the form simple and focused on the end result are also provided.