Body metrics, calorie planning, and wellness calculators for daily health decisions.
Estimate one-rep max from submaximal lifts using multiple strength formulas.
Calculate BMI using metric or imperial units, with classification and healthy range guidance.
Estimate basal metabolic rate with Mifflin, Harris-Benedict, and Katch formulas plus maintenance calorie preview.
Estimate BAC with Widmark formula using sex, body weight, drinks, and elapsed time.
Estimate body fat percentage with Navy and BMI methods, plus body composition and healthy range context.
Set a fat-loss pace and calculate daily deficit, target intake, scenario plans, and a 12-week projection.
Generate five training heart-rate zones using max-HR formulas and Karvonen reserve model.
Estimate ideal body weight using Devine, Robinson, Miller, and Hamwi formulas with frame-size adjustment.
Estimate lean body mass and fat mass using direct body-fat input or formula-based methods.
Calculate protein, carb, and fat grams from calories using preset or custom macro ratios.
Compute pace, finish time, or distance with split projections and speed conversions.
Estimate due date and gestational milestones from LMP, conception date, or IVF transfer date.
Estimate daily protein targets by goal, activity level, and meal distribution.
Plan optimal bedtimes or wake-up times based on 90-minute sleep cycle windows.