Nutrition

Estimate BMR and TDEE, compare resting-energy formulas, and turn activity and goal assumptions into calorie and macro targets.

Estimate a baby's daily formula range and bottle amount from age and weight, adjusted for feeding share and schedule with pediatric cautions.

Estimate body-fat percentage from tape measurements and compare Navy, RFM, and BMI-age methods with lean-mass and uncertainty context.

Calculate adult BMI from height and weight, compare three reference systems, and add waist-to-height and healthy-band weight context.

Compare adult BMI and waist ratios with three body-fat estimates, derived fat and lean mass plus BSA and method-spread warnings.

Plan fat and lean-mass change across a chosen runway, then check the implied weight and nutrition targets against pace and uncertainty.

Find a breast milk use-by time from its current state and storage condition, with CDC-based windows and stricter care-context cautions.

Estimate caffeine per serving and session from a label or drink preset, then compare daily intake and a modeled clearance timeline.

Plan a caffeine cut-off from dose and bedtime using half-life and a residual target, then check a proposed drink time and daily total.

Estimate gross and active calories from activity MET, body weight and duration using a consistent model with target time and weekly totals.

Plan race-week carbohydrate grams from body weight and event length, then split daily targets across loading days, meal blocks and practiced drinks.

Estimate daily calories and food-label portions for a healthy adult cat at ideal body condition, with meal splits and a 10% treat ceiling.

Estimate coffee drink calories from a measured recipe and see which ingredients drive the total before comparing milk, syrup, or cream swaps.

Calculate coffee strength and extraction yield from dose, beverage mass, and a TDS or Brix reading with method-specific target boxes.

Measure coffee strength from TDS or Brix and calculate extraction yield, with clear comparisons against stated filter, immersion and espresso targets.

Plan a repeatable coffee-to-water ratio from a weighed dose or target cup yield, including retained water and method-specific starting ranges.

Turn filtered cold brew concentrate into a ready-to-drink batch with water or milk splits, ice allowance, reserve, and serving yield.

Plan optional creatine loading and maintenance from body weight, then check daily grams against label units and available container supply.

Plan fueling for one run or ride from hourly targets and real bottle or fuel portions, with sodium context and a timed intake schedule.

Calculate raw or height-normalized FFMI from body-fat or fat-free-mass readings, with sensitivity ranges and goal projections.

Choose a coffee grind size from brew method and measured time with taste feedback, calibrated grinder mapping, and clear dial-in warnings.

Plan flash-brew iced coffee with a balanced coffee dose and hot-water-to-ice split plus pour timing and an idealized chill estimate.

Compare four classic ideal-weight formulas by adult height, then place their spread beside a BMI corridor and optional current-weight context.

Plan daily intermittent fasting windows from a first-meal time with weekend shifts, personal duration ceilings and safety-focused checks.

Estimate adult lean body mass from height and weight, compare four published equations, or use body-fat routes with FFMI and method-spread checks.

Calculate daily calories and protein, carbohydrate, and fat targets from body metrics with selectable energy formulas and planning safeguards.

Estimate your annual carbon footprint against a chosen budget, compare major sources, and test local emission factors or verified offsets.

Count caffeine from drinks, foods, and medicines during pregnancy and compare the day total with a 200 mg or clinician-set planning limit.

Plan daily protein grams from body size and training goals with practical meal targets, intake comparisons, and medical-context cautions.

Estimate active calories from steps using distance and pace with body weight, load and terrain plus target steps and an adjustable uncertainty range.

Calculate waist-to-hip ratio from mixed-unit measurements, compare WHO screening cutoffs, and see whether tape uncertainty crosses a boundary.

Calculate waist-to-height ratio from mixed units and compare the unrounded result with current NICE central-adiposity bands and waist targets.

Plan a daily drink target from total-water references and exercise sweat with food-water adjustments, serving counts and safety cautions.

Plan an adult weight change from body measurements and timing with an adaptive calorie estimate plus pace warnings and BMI context.