A1C to Blood Sugar Calculator
Average glucose in mg/dL and mmol/L from A1C percent.
Health and Fitness
Body weight, calories, and related measures. Results are estimates for information only, not medical advice.
Active Minutes Calculator
Weekly activity versus the 150 minute goal with strength check.
Apgar Score Calculator
Newborn Apgar total with band verdict.
AQI Activity Calculator
Air quality category and outdoor exertion guidance from the AQI number.
Baby Diaper Calculator
Diaper count and cost from age stage and price.
Baby Formula Calculator
Daily ounces and per feed amounts from weight and age band.
Baby Teeth Count Calculator
Expected baby teeth by age in months.
BAC Calculator
Estimated blood alcohol from drinks, weight, sex, and hours.
Biotin Intake Calculator
Biotin mcg from food and pills against RDA.
Blood Pressure Calculator
AHA category and next steps from systolic and diastolic readings.
BMI Calculator
Find your Body Mass Index from height and weight, with the healthy range for your height.
Body Fat Percentage Calculator
Estimate body fat with the US Navy tape method from height, neck, waist, and hip.
Body Surface Area Calculator
Du Bois and Mosteller body surface area from height and weight.
Body Water Calculator
Total body water, percent of weight, and fluid split from sex, age, and size.
Breast Milk Storage Calculator
Breast milk use-by times from pump time and storage scenario per CDC.
Burn Area Calculator
Adult burn percent by rule of nines with severity bands.
Calcium Intake Calculator
Daily calcium mg vs RDA from foods plus supplement.
Calorie and TDEE Calculator
Estimate daily calorie needs from age, sex, size, and activity using the Mifflin-St Jeor equation.
Calories Burned Calculator
Calories per workout from activity, weight, and minutes using MET values.
Child Sleep Calculator
Recommended sleep range, verdict, and weekly hours from age group and actual sleep.
Contact Lens Schedule Calculator
Next lens change date and supply count from start date and wear schedule.
Contraction Timer Calculator
Labor verdict from minutes apart and seconds long.
CPR Compression Calculator
Compressions and 30:2 cycles from minutes.
Creatine Dose Calculator
Creatine loading and maintenance from weight.
Creatinine Clearance Calculator
Cockcroft-Gault kidney estimate from age, weight, sex, and creatinine.
Daily Water Intake Calculator
How much water to drink per day from weight, exercise, and heat.
Diabetes Risk Calculator
ADA type 2 risk score from 7 questions with next steps.
Dosage by Weight Calculator
Single dose, liquid volume, and daily total from weight and mg per kg.
Eye Break Calculator
Turn screen minutes into 20-20-20 breaks with total rest seconds and minutes.
Fiber Intake Calculator
Daily fiber target, per meal share, and reference benchmark from calories and sex.
Floss Picks Calculator
Turn household size and daily flossing into monthly picks and cost.
Folate Intake Calculator
Folate mcg from food and pills against RDA.
Hearing Protection Calculator
Effective ear noise from NRR with derating, plus protection verdict.
Heart Rate Recovery Calculator
One minute heart rate drop with verdict.
Heart Rate Zones Calculator
Max heart rate and all five training zones from age and resting pulse.
Ideal Weight Calculator
Healthy weight range from height and sex using Robinson and Devine formulas.
Inhaler Doses Left Calculator
Doses left, days left, and refill timing from canister counts.
Insect Repellent Calculator
Protection hours and reapplies from DEET percent.
Iodine Intake Calculator
Iodine mcg from diet and pills against RDA and UL.
Iron Deficit Calculator
Ganzoni iron need from weight and Hb gap.
Iron Intake Calculator
Daily iron mg vs RDA from foods plus supplement.
IVF Due Date Calculator
Due date from embryo transfer day for day 2, 3, 5, and 6 transfers.
Jet Lag Recovery Calculator
Adjust days from zones and direction.
LDL Cholesterol Calculator
LDL from total, HDL, and triglycerides with bands and ratio.
Lean Body Mass Calculator
Boer lean body mass from height, weight, and sex, with fat mass shown.
Lice Treatment Schedule Calculator
Lice retreat dates and comb checks from find date and product.
Light Therapy Calculator
Light dose, standard check, and timing.
Magnesium Intake Calculator
Daily magnesium mg vs RDA from foods plus supplement.
Mean Arterial Pressure Calculator
MAP, pulse pressure, and band reading from systolic and diastolic pressures.
Omega-3 Intake Calculator
Omega-3 mg from fish, nuts, and pills.
Oral Rehydration Salts Calculator
Homemade ORS sugar, salt, and water by liters.
Ovulation Calculator
Fertile window, ovulation day, and next period from LMP and cycle length.
Pack Years Calculator
Smoking pack-years from cigarettes per day and years smoked.
Peak Flow Zones Calculator
Peak flow zone from personal best and today reading: green, yellow, or red.
Potassium Intake Calculator
Daily potassium mg vs AI from foods.
Pregnancy Due Date Calculator
Due date, conception estimate, and current week from the first day of the last period.
Pregnancy Weight Gain Calculator
Healthy total weight gain from pre-pregnancy BMI, in lb or kg.
Pulse Pressure Calculator
Pulse gap, MAP, and band from BP readings.
QTc Calculator (Bazett)
Bazett QTc with sex based flag.
Reading Glasses Calculator
OTC reader power and try range from age.
Screen Time Calculator
Weekly hours and daily average from weekday habits.
Sleep Calculator (90 Minute Cycles)
Best bedtimes for your alarm, or best alarms for your bedtime.
Sleep Debt Calculator
Sleep hours owed and nightly catch up from average, target, and nights.
Sleep Efficiency Calculator
Percent asleep with awake minutes and band.
Soda Tracker Calculator
Turn daily soda cans into weekly, monthly, and yearly totals.
Sodium Intake Calculator
Daily sodium mg vs 2300 DV from salt and foods.
STOP-Bang Calculator
STOP-Bang sleep apnea score and risk band.
Sunscreen Schedule Calculator
Reapply count, exact times, and swim reminder from start and end times.
Visual Acuity Converter
Swap Snellen, decimal, and logMAR vision scores.
Vitamin A Intake Calculator
Vitamin A mcg from food and pills against RDA.
Vitamin B12 Intake Calculator
Vitamin B12 mcg from food and pills against RDA.
Vitamin B6 Intake Calculator
Vitamin B6 mg from food and pills against RDA.
Vitamin C Intake Calculator
Vitamin C mg from food and pills against RDA.
Vitamin D Intake Calculator
Daily vitamin D IU vs RDA from foods plus supplement.
Vitamin Days Supply Calculator
Turn pill count, daily dose, and buffer into days supply and reorder day.
Vitamin E Intake Calculator
Vitamin E mg from food and pills against RDA.
Vitamin K Intake Calculator
Vitamin K mcg from food and pills against RDA.
Waist to Height Ratio Calculator
Health risk from waist divided by height, with the 0.5 boundary.
Waist to Hip Ratio Calculator
WHO waist hip ratio with cutoff verdict for men and women.
Water Fluoride Calculator
Water fluoride band and intake from lab mg/L with EPA limit guidance.
Weight Loss Calculator
Daily calorie deficit, weekly loss rate, and pace verdict from current weight, goal, and weeks.
Zinc Intake Calculator
Daily zinc mg vs RDA from foods plus supplement.