Key takeaway
Use estimates as ranges and trends, keep measurement methods consistent and seek qualified care for symptoms or important health decisions.
Know what each tool estimates
BMI relates weight to height, BMR estimates resting energy and TDEE adds an activity factor. They answer different questions.
Avoid false precision
Activity level, body composition and measurement error can move the result. Use a reasonable range instead of treating one number as exact.
Keep medical context separate
These tools cannot diagnose a condition or determine a safe treatment. Discuss unusual results, symptoms or major diet changes with a qualified professional.
