Health tools

Daily calories you burn, plus targets for cut, maintain, or bulk.

Body Mass Index with the WHO category and your healthy weight range.

Estimate your basal metabolic rate with Mifflin-St Jeor and Harris-Benedict.

Split daily calories into protein, carb and fat grams by diet preset.

Find maintenance calories and targets to lose, maintain or gain weight.

Estimate body fat percentage with the US Navy tape method.

Ideal body weight by Devine, Robinson, Miller and Hamwi formulas.

Estimate your 1RM and build a percentage-of-max lifting table.

Daily water target from body weight and activity, in liters and ounces.

Recommended daily protein range by goal, plus per-meal targets.

Pace, speed and race-time predictions from distance and time.

Estimate pregnancy due date, current progress and conception from LMP.

Predict ovulation, fertile window and upcoming period dates.

Calculate optimal bedtime or wake-up times based on sleep cycles.

Determine target training zones using age and resting heart rate.

Estimate calories burned during activities using MET values.

Calculate lean body mass, fat mass, and body fat percentage.

Assess body fat distribution and cardiovascular health risk.

Convert HbA1c to average blood glucose levels (eAG) and vice versa.

Evaluate systolic and diastolic blood pressure values.

Predict child adult height using parental height measurements.

Estimate blood alcohol concentration (BAC) over time.

Determine recommended weight gain targets by pregnancy week.

Calculate macronutrient targets (carbs, protein, fat) for ketogenic diet.

Calculate relative strength performance scores for powerlifting.

Calculate the total financial cost of smoking over time.

Interactive timer for intermittent fasting tracking.

Molar Mass / Molecular Weight Calculator *(highest-volume chemistry term)* online tool

steel/aluminum/metal/pipe/plate weight

baby weight/height/head circumference, BMI percentile, height percentile

baby formula & milk intake, adjusted age, child dosage

Tylenol/paracetamol, ibuprofen, Benadryl, general mg/kg dose, drug half-life

GFR/creatinine clearance, anion gap, corrected calcium, MAP, QTc, Wells score, GCS, CHA₂DS₂-VASc

LDL, cholesterol ratio, cholesterol unit converter, metabolic syndrome

conception date, gestational age, hCG levels, implantation, period calculator, IVF due date

ACFT, APFT, Navy body fat, Air Force PT

sleep debt, Epworth sleepiness, PHQ-2 depression, GAD-7 anxiety

Blood Type Inheritance Calculator, Blood Donation Due Date online tool

Weight Loss Percentage / Calorie Deficit / Goal Weight Date Calculator online tool

Vitamin & Micronutrient Intake Calculators, Weight Watchers Points online tool

walking, swimming, jump rope, stairs, hiking, elliptical

consumer traffic, trivial to build)*