BMR & BMI Calculator
Estimate adult body mass index and resting energy needs without creating an account or submitting your entries.
- US and metric measurements
- Activity level not included
- Educational results and context
True Fit Resources
Explore free tools, trainer-selection guidance, nutrition planning options, and educational articles designed to help you make informed training and nutrition decisions.
Explore ResourcesStart here
Use the free calculator for educational estimates, learn how to evaluate a trainer, or explore independent nutrition planning through the Macro Wizard.
Estimate adult body mass index and resting energy needs without creating an account or submitting your entries.

Review positive signs, potential red flags, questions to ask, and the differences between online, in-person, and hybrid coaching.

Purchase personalized macro-balanced meal plans when you do not have a trainer, are between coaching contracts, or want a structured place to begin.
Choose your path
Explore client management, reusable plan repositories, scheduling, payments, progress tools, and full app branding.
View trainer tools →Learn how True Fit keeps assigned plans, communication, scheduling, purchases, progress, and historical plans organized.
View client access →Begin with educational estimates, independent nutrition planning, or guidance for evaluating a future trainer.
Start with the calculator →From the True Fit blog
Educational articles help trainers and clients understand the decisions around programming, nutrition, progress, and professional coaching.
General tools and articles cannot account for every health condition, medication, injury, goal, or individual need. Seek qualified medical, nutrition, or training guidance when appropriate.
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