QUICK ANSWERStart with the tool that matches your immediate input.
Open BMI Calculator first when its stated purpose matches the result you need now. Use BMR Calculator only when it solves a separate next task.
This guide is for people using general educational wellness and planning tools. Start with BMI Calculator when your immediate task is to open the original BMI Calculator and complete the task with a focused browser-based interface. Move to BMR Calculator only when you also need to open the original BMR Calculator and complete the task with a focused browser-based interface.
The goal is not to run two tools automatically. It is to finish the first narrow task, inspect its result, and then decide whether BMR Calculator solves a genuinely different next step.
Both tools sit in Health & Wellness, but they handle different inputs or outcomes. Keeping those roles separate reduces repeated work and makes verification easier.