About FitCalc Studio

FitCalc Studio is a suite of eight interlinked health calculators modeled on a clean, high-trust reference style: BMI, BMR, TDEE, calorie targets, macros, ideal body weight, US Navy body fat, and daily water intake.

Every formula runs in your browser. Age, height, weight, and related measurements save to local storage so you do not retype them on every tool. We do not require an account for calculations.

Results are educational estimates, not medical care. Read the medical disclaimer and speak with a qualified clinician before changing diet or training in a significant way.