Your personal Nutrition Goals. For free.

Tired of restrictive diets that leave you hungry and frustrated? It's time to embrace nutrition that's tailored to you, and adapts to your journey. Sesh Fitness by Katy Hearn is the best macro calculator for women, and we made it free and available to everyone! Trusted and optimized for over a decade, our macro calculator delivers personalized targets based on your body, goals, and lifestyle--and we have over 400,000 incredible transformations to prove it.

Say goodbye to one-size-fits-all approaches and fad diets and discover a sustainable way to hit your goals while enjoying more food freedom and confidence. Designed by women for women, our macro calculator adapts as you progress, ensuring you're always fueling for success, without sacrificing your well-being. Experience faster results and a better relationship with food, because your body—and your mind—deserve better.

The Katy Hearn Macro Calculator started as an online tool on the Katy Hearn Fitness website, later evolving into FIT by Katy and now the advanced Sesh Fitness app.

At Sesh Fitness, we continue the legacy of precise and personalized macro calculations, while enhancing the experience with improved technology and advancements. The Sesh Macro Calculator combines over a decade of refinement with advanced functionality and personalization to provide a seamless and customizable experience to women who want to become a happier, healthier version of themselves.