Nutrition

Estimate BMR, TDEE, calorie targets, weekly pace, and macros from body measurements, activity, formula choice, and goal settings.

Estimate a baby formula day from age, weight, feeds, and formula share, with bottle targets, schedule checks, and pediatric caution flags.

Estimate body-fat percentage from tape measurements, compare Navy, RFM, and BMI-age methods, and plan lean-mass, waist, and target-weight checks.

Calculate adult BMI from height and weight, compare WHO, Asia-Pacific, and NIH/CDC bands, and add waist and target-weight context.

Compare BMI, waist ratios, body-fat estimates, lean and fat mass, BSA, and reference weights with risk bands and spread warnings.

Plan a body recomposition target from weight, body-fat change, lean-mass assumptions, runway, calories, protein, and uncertainty flags.

Calculate breast milk use-by times for fresh, thawed, warmed, or leftover milk with storage windows, label text, and care-context cautions.

Estimate caffeine from drink size, label values, servings, body weight, daily guides, and half-life timing with charts and warnings.

Calculate the latest caffeine cut-off before bed from dose, half-life, absorption, and residual targets, with candidate-time and daily-limit checks.

Estimate calories burned from weight, activity MET, duration, and model choice, with active-only burn, weekly credit, and target timing.

Plan race-week carbohydrate targets from body weight and event length, with daily grams, meal blocks, ramp timing, and gut-tolerance flags.

Estimate coffee drink calories from milk, syrups, cream, toppings, and caffeine assumptions, then compare recipe changes before logging.

Calculate coffee extraction yield and cup strength from dose, beverage mass, and TDS or Brix, with target bands, warnings, and dial-in moves.

Measure coffee strength from TDS or Brix readings, estimate extraction yield, and compare the brew with filter, immersion, or espresso targets.

Plan coffee-to-water ratios from a dose or target yield, then estimate brew water, cup yield, batch scaling, and method-window warnings.

Plan cold brew dilution from concentrate ratio to ready-drink serving yield, with water or milk splits, ice melt, service loss, and batch sizing.

Calculate creatine loading or maintenance from body weight, serving split, label units, health context, and container supply checks.

Plan run or ride fueling by duration, effort, sweat rate, drink mix, gels, bottles, sodium, and reminder intervals with warning checks.

Calculate FFMI from weight, height, and body-fat or lean-mass readings, with normalized comparison bands, sensitivity checks, and goals.

Choose a coffee grind size from brew time, taste, and grinder range, with micron bands, dial moves, and a brew trace for repeatable adjustments.

Plan a flash-brew iced coffee recipe by balancing coffee dose, hot water, brew ice, retained liquid, pour timing, and chill guardrails.

Estimate adult ideal weight from Devine, Hamwi, Robinson, and Miller formulas, then compare the result with a BMI-based healthy-weight corridor.

Plan intermittent fasting windows from a first meal time, with safety ceilings, weekend shifts, hydration reminders, and downloadable schedules.

Estimate lean body mass from height, weight, sex, and body-fat checks, then compare formula spread, FFMI, warnings, and charts.

Calculate daily calorie and macro targets from body metrics, activity, goal pace, BMR formula, protein floor, and meal split warnings.

Estimate an annual carbon budget from home energy, travel, diet, other sources, and offsets with runway and reduction-lever views.

Track a pregnancy caffeine day total against a 200 mg or custom target, with remaining allowance, serving fit labels, and caution notes.

Calculate a daily protein target from body weight, goal, training load, diet pattern, meals, and health context, with gap and calorie-share checks.

Estimate active calories from steps with weight, step length, pace, terrain, target steps, and uncertainty ranges for walks or runs.

Calculate waist-to-height ratio from mixed units, compare NICE or legacy bands, and turn half-height cutoffs into waist targets with cautions.

Calculate waist-to-hip ratio from waist and hip measurements, compare sex-specific bands, and see whether tape uncertainty changes the screen.

Plan a daily drink target from total-water references, body weight, climate, exercise, sweat data, serving counts, and safety flags.

Plan a weight-change target from body stats, activity, goal date, and calorie floors, with BMI context, pace warnings, and runway charts.