Calorie & Macro Calculator
Estimate TDEE, calorie target, protein, carbs, fat, and weekly weight-change pace.
Open Tool →Workout Plan Generator
Create weekly strength, muscle gain, fat loss, endurance, or general fitness plans.
Open Tool →BMI Calculator
Calculate Body Mass Index with metric or imperial inputs. WHO classification included.
Open Tool →TDEE & BMR Calculator
Find your Total Daily Energy Expenditure and Basal Metabolic Rate. 5 activity levels.
Open Tool →Macro Calculator
Get daily protein, carb, and fat targets based on your goal and calorie budget.
Open Tool →Sleep Cycle Calculator
Find the best bedtimes based on 90-minute sleep cycles to wake up refreshed.
Open Tool →Pregnancy Due Date Calculator
Estimate your due date from last period or conception date. Shows week and trimester.
Open Tool →Running Pace Calculator
Convert between pace, speed, and finish time. Includes race-distance table and pace zones.
Open Tool →Heart Rate Training Zones
Calculate your 5 training zones using the Karvonen formula with resting heart rate.
Open Tool →Ideal Weight Calculator
Compare Devine, Robinson, Miller, and Hamwi ideal weight formulas side by side.
Open Tool →Period, Ovulation & Pregnancy Tracker
Track cycles, calculate fertile windows, and estimate due dates. All data stays in your browser.
Open Tool →One-Rep Max Calculator
Estimate your 1RM with Epley, Brzycki, Lombardi, O'Conner, and Wathen formulas — plus a 50–95% training table.
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