Explore calculators in this category.
Convert an HbA1c laboratory result into estimated average glucose (eAG) or translate daily glucose readings back to A1C.
Monitor weekly training spikes by comparing the current load to the rolling average from prior weeks.
Estimate how much of an out-of-network air ambulance bill may land on you after plan allowances, coinsurance, and negotiation.
Forecast patient and insurer costs for allergy immunotherapy injections with deductible, coinsurance, and copay inputs.
Design a staged ascent plan by capping daily sleeping altitude gains and inserting rest nights for safe acclimatization.
Calculate the percentage of 24-hour ambulatory readings above your daytime and nighttime blood pressure thresholds.
Balance the microclimate in your cheese cave with the flavor targets of each wheel to forecast when it will be ready to wrap, ship, or plate. This tool translates temperature and humidity logs into a realistic maturation timeline for small-batch artisans.
Estimate bariatric surgery costs owed after deductibles, coinsurance, out-of-pocket caps, and optional HSA offsets.
Estimate daily calories burned at rest using the Mifflin-St Jeor equation.
Estimate daily calories burned at rest.
Approximate blood alcohol concentration using drink count, body weight, and elapsed time.
Estimate how long it takes for your blood alcohol concentration (BAC) to reach zero based on an average elimination rate.
Estimate fluid replacement, iron needs, and rest days after whole blood, plasma, or platelet donation.
Approximate total blood volume using average liters per kilogram.
Calculate your Body Mass Index (BMI) from metric height and weight to evaluate weight status categories.
BMI normalized to the upper healthy limit of 25.
Estimate body fat percentage using hip circumference and height.
Estimate a body-composition-aware BMI that tempers the classic formula with measured body fat percentage. Ideal for athletes, coaches, and clinicians who need a quick lean-mass comparison alongside standard BMI.
Find the mass of body fat based on total weight and body fat percentage.
Estimate body fat percentage using the Deurenberg formula with weight, height, age, and gender inputs.
Estimate body surface area (BSA) using the Du Bois formula with weight in kilograms and height in centimeters. Enter the values and press Calculate.
Estimate body surface area from height and weight using the Haycock formula.
Estimate BSA from weight and height.
Estimate remaining caffeine over time.
Estimate a conservative daily caffeine maximum based on your body weight using a 3 mg/kg guideline.
Translate your daily calorie target into precise grams of protein, carbs, and fats per day and per meal.
Convert calories from meals into the minutes of exercise required to burn them off.
Calculate your daily calorie intake after applying a chosen deficit. Enter maintenance calories and desired deficit, then press Calculate.
Estimate potential weight gain from extra calories consumed.
Estimate calories burned using activity MET value, body weight, and duration.
Determine what percentage of calories come from fat.
Size the cash patients must cover for CAR-T therapy after deductibles, coinsurance, allowances, and travel.
Estimate 10-year cardiovascular disease risk using a simplified Framingham-inspired formula.
Project your cash cost for premium intraocular lens upgrades after plan allowances, deductibles, coinsurance, and HSA funds.
Estimate yearly out-of-pocket costs for continuous glucose monitoring after insurance coverage.
Plan monthly and annual cash buffers for continuous glucose monitor sensors after insurance reimbursement.
Plan a recovery window that supports melatonin release and alertness by calculating when you should go to bed after work. Enter your shift start time, the length of the shift, how long it takes to commute home, the minutes you need to unwind, and your target sleep duration to get a clock-specific sleep block.
Compute body mass index with propagated measurement uncertainty and WHO classification.
Compare COBRA premiums with subsidized ACA marketplace options to reveal net monthly, total, and per-person savings.
Estimate the out-of-pocket amount remaining after coverage, deductibles, and policy caps for a cochlear implant.
Estimate how much heat a parcel will absorb over time and whether coolant capacity keeps contents within temperature limits.
Compare monthly compounded semaglutide pricing with branded GLP-1 therapy costs to reveal real cash savings.
Compare concierge retainer fees with standard visit costs and time savings to see when the membership pays for itself.
Set CGM high and low alerts based on your typical fasting and post-meal readings, then customize buffers to reduce nuisance alarms.
Estimate monthly and annual CGM supply costs after insurance reimbursements, copay cards, transmitter upgrades, and digital subscriptions.
Translate a coronary artery calcium score into arterial age, risk tier, and percentile context for preventive planning.
Convert CPAP runtime and wattage into monthly and annual electricity costs to budget sleep apnea therapy.
Check how ramp time, nightly use, and mask leak affect meeting the 4-hour CPAP compliance threshold.
Estimate a comfort-focused auto-CPAP range and supply budget from your prescribed pressure, AHI, nightly usage, and mask cadence.
Plan creatine loading and maintenance grams based on body weight and schedule.
Size the cash reserve needed after a critical illness by comparing living expenses to insurance and savings.
Estimate daily calories burned from your step count and exercise time.
Estimate daily fiber needs based on calorie intake.
Estimate an individualized daily protein target based on body weight and activity level.
Estimate daily protein requirement from body weight.
Rough estimate of daily water intake from body weight.
Estimate insurer reimbursement, remaining annual max, and patient out-of-pocket spend for dental implant treatment plans.
Specify total daily calories, macro percentage, and calories per gram to find grams for a given macro nutrient.
Divide one number by another to find the quotient.
Project egg freezing costs by combining retrieval spend, annual storage fees, and optional transfer reserves.
Discount multi-year egg or embryo storage fees to a present-value funding target with optional inflation and clinic credits.
Dial in sodium, potassium, and magnesium targets for long endurance sessions. Enter your sweat rate, lab-tested or estimated mineral losses per litre, and planned duration to see hourly and total replacement goals.
Apply the 20-20-20 rule to long screen sessions and see how much recovery time you should schedule for healthier eyes.
Estimate storage and hemoglobin iron deficits for female athletes using ferritin, hemoglobin, body weight, and training load context.
Estimate out-of-pocket and financed costs for IVF or IUI after insurance coverage caps, medication, and lender terms.
Estimate the total amount of water you should plan to drink during a flight based on travel time and your personal hydration goal per hour.
Project how a training block could lift your cycling FTP by combining planned weekly watt gains with an adherence multiplier.
Estimate patient responsibility, insurer payments, and assistance impact for one-time gene therapy charges.
Translate surrogate compensation, agency fees, and medical allowances into a fully funded escrow target with contingency room.
Project monthly and annual out-of-pocket costs for GLP-1 therapy after coinsurance and copay cards.
Estimate monthly out-of-pocket costs for GLP-1 weight-loss medications after insurance and copay cards.
Estimate your monthly out-of-pocket cost for GLP-1 therapy after applying insurance coinsurance and copay card benefits.
Estimate how many weeks of semaglutide, tirzepatide, or similar GLP-1 therapy a single pen covers and what that means for monthly spend.
Estimate the cash you must front while waiting for GLP-1 prior authorization approvals or appeals.
Project yearly GLP-1 medication costs after insurance coverage, copay support, and optional monthly add-ons.
Estimate GLP-1 medication out-of-pocket costs after deductibles, coinsurance, copay cards, and pharmacy fees.
Estimate monthly and total GLP-1 medication costs after insurance coverage and savings-card support, and see exactly when assistance caps are exhausted.
Blend insurance coverage, copay cards, and clinic fees to project the monthly out-of-pocket cost of GLP-1 therapy.
See the effective cost per pound lost when using a GLP-1 medication program, including optional membership fees.
Multiply the carbohydrate content of a serving by its glycemic index and divide by 100 to get glycemic load.
Project the all-in budget for a hair transplant by combining graft pricing, surgical fees, and optional travel add-ons.
Compare annual costs, employer HSA offsets, and the claim level where a PPO becomes cheaper than a high-deductible health plan.
See how much you must spend each month to avoid forfeiting health FSA dollars.
Estimate a healthy maximum waist circumference as half your height.
See how much a hearing aid allowance and coverage percentage reduce what you pay out of pocket.
Current training intensity as a percentage of heart rate reserve.
Estimate perceived temperature from air temperature and humidity.
Compare observation billing to inpatient costs so you can budget for uncovered exposure.
Estimate how much hormone replacement therapy will cost you each month after insurance, clinic fees, and copay support.
Blend today’s HRV, sleep duration, perceived sleep quality, and acute training load to decide how hard to train.
Quantify federal and state tax savings from health savings account contributions and the effective after-tax cost.
Estimate out-of-pocket spend, insurer reimbursement, and HSA funding for a hyperbaric oxygen therapy plan.
Estimate ideal body weight using the Devine formula.
Estimate ideal body weight with the Devine formula using height in inches and a gender-specific base value.
Project your out-of-pocket exposure for infusion-based immunotherapy by blending billed charges, coinsurance, deductible, and any remaining out-of-pocket maximum.
Compare Inspire hypoglossal nerve stimulation costs against ongoing CPAP spend to pinpoint payback timing, five-year savings, and replacement funding.
Determine how to space meals once your fasting period ends. Enter the number of fasting hours each day and how many meals you intend to eat during the feeding window to see the recommended spacing between meals.
Plan fasting and eating windows around a chosen first meal, including hydration reminders and meal spacing guidance.
Convert gonadotropin dosing, vial pricing, and insurance coverage into a clear per-cycle out-of-pocket budget.
Estimate IVF medication out-of-pocket costs after insurance coverage, discount programs, and monitoring fees for each cycle.
Compare preimplantation genetic testing costs with the price of failed embryo transfers to see how many avoided cycles justify the spend.
Compare IVF refund packages against paying per cycle by modeling success odds, partial refunds, and cost per live birth.
Estimate days needed to recover from time zone changes.
Forecast what ketamine infusions will cost after deductible, coinsurance, and any HSA or FSA funds you plan to use.
Plan primary kombucha fermentation with a temperature-aware schedule. Balance ambient temperature, starter percentage, tea strength, and target acidity to know when to taste, bottle, or move to secondary fermentation.
Approximate water intake for manual labor based on body weight, duration, and temperature.
Translate the results of a 20–30 minute time-trial into actionable training targets. Enter the distance you covered, the total time, and your measured resting and maximum heart rates to see a recommended lactate threshold pace and heart rate.
Estimate lean body mass using the Boer formula.
Estimate how much cash you need to cover care costs during a long-term care policy elimination period before benefits begin.
Compare projected long-term disability benefits to essential expenses to see if a monthly income gap remains.
Generate training-day and recovery-day macro targets from body weight, calorie swing, and preferred fat ranges.
Enter your daily calorie target and desired macro percentages to see grams of protein, carbohydrates and fats.
Estimate your maximum heart rate based on age.
Estimate average arterial pressure using systolic and diastolic readings.
Measure how much you must spend down to reach your state's Medicaid asset limit.
Size the tail premium, employer contribution, and monthly savings needed before your claims-made policy ends.
Project the lifetime dollars a delayed Part B enrollment adds to your premiums so you know when catching up still makes sense.
See the monthly surcharge and lifetime dollars owed for delaying Medicare Part B enrollment.
Estimate the lifetime surcharge added to Medicare Part D premiums when you go without creditable drug coverage.
Compare Medigap premiums with Medicare Advantage out-of-pocket exposure to find the breakeven claims level.
Estimate a starting estradiol patch dose using age, vasomotor symptom severity, and recent hormone labs.
Forecast per-session and annual cash costs for Botox migraine therapy after plan allowances, copay cards, and out-of-pocket caps.
Estimate what you'll pay for an MRI after deductible, coinsurance, and allowed-amount limits.
Project your NICU bill after deductibles, coinsurance, and out-of-pocket caps.
Estimate the maximum recommended exposure time for a specific workplace noise level using OSHA's 5 dB exchange rate.
Enter your daily intake of Omega-3 and Omega-6 fatty acids to see their ratio.
Estimate your one-repetition maximum using the Brzycki equation.
Estimate your one-repetition maximum using the Epley formula.
Track remaining orthodontic insurance coverage against the lifetime maximum after factoring in claims already paid.
Estimate your anesthesia balance bill by blending the provider charge, plan allowance, deductible, and coinsurance.
Estimate insurer reimbursement, balance billing exposure, and total cash owed for out-of-network procedures.
Estimate reimbursement on superbills by blending allowed amounts, deductible progress, and coinsurance to plan cash flow.
Show how much of your health plan out-of-pocket maximum is left and how an upcoming bill will be covered.
Project the cash gap during parental leave after employer pay and state benefits.
Plan out-of-pocket costs for pelvic floor physical therapy sessions and home equipment.
Split weekly training hours into low- and high-intensity buckets using the 80/20 model and session preferences.
Evaluate body build with the Ponderal Index, a height-cubed alternative to BMI.
Estimate expected due date 280 days from the last menstrual period.
Estimate gestational age in weeks from your last menstrual period and today's date to track prenatal milestones with clarity.
Estimate the revenue deferred or lost when prior authorization delays push reimbursable procedures into the future.
Estimate your prostate MRI bill after deductible, coinsurance, and any balance billing exposure.
Percentage of calories coming from protein.
Estimate how much of a proton therapy plan insurance covers versus what you must fund out of pocket.
Calculate pulse pressure from systolic and diastolic blood pressure readings.
Provide your current pace, race distance, and anticipated performance gain to estimate a goal finish time.
Project your race finish time from distance and target pace so you can plan training runs and pacing strategies.
Project monthly RPM revenue after staffing cost by combining enrolled patients and average reimbursement per patient.
Compute your average running pace per kilometer from distance and time.
Count how many 20-second eye breaks to take every 20 minutes of screen time.
Estimate calories burned while sitting.
Map your weekly semaglutide dose increases, ramp duration, and expected weight milestone based on your goals.
Project patient out-of-pocket costs for a mandibular advancement device after deductibles, coinsurance, and plan allowance limits.
Estimate how many complete 90-minute sleep cycles fit into any planned sleep duration.
Estimate how many hours of rest you owe your body by comparing recommended sleep to actual sleep across days.
Estimate your weekly sleep debt and how many days of extra rest it takes to clear.
Estimate weekly sleep debt from average nightly rest.
Calculate sleep efficiency by comparing actual sleep time to total time spent in bed. Enter hours in bed and hours slept.
Estimate what an in-lab sleep study will cost after deductibles, coinsurance, copays, and out-of-pocket caps.
Estimate cumulative smoking exposure by multiplying daily packs by years smoked.
Estimate how copay accumulator programs change monthly out-of-pocket costs, assistance timing, and plan maximum milestones.
Model patient cash flow across copay maximizer or accumulator programs for high-cost therapies.
Estimate annual out-of-pocket costs for specialty drugs after copay cards, accumulators, and deductibles.
Approximate additional calories burned from standing instead of sitting at work.
Estimate an ergonomic standing desk height based on your stature, with adjustment tips for footwear, monitor setup, and posture.
Track the share of your day spent standing versus sitting to monitor sedentary time and encourage more movement.
Layer coverage, deductibles, and travel costs to map the cash you must reserve for regenerative stem cell therapy.
Turn block length, weekly sets, RPE, sleep, and readiness data into an actionable deload duration with volume and intensity targets.
Convert grams of sugar into sugar cube equivalents.
Enter your body weight, swim duration, and stroke MET value to estimate calories burned.
Calculate your target body weight assuming lean mass stays constant.
Estimate 70% of max heart rate using 220 − age.
Estimate personalised training zones with the Karvonen method by combining age, resting heart rate, and desired intensity.
Estimate target exercise heart rate using age-based maximum heart rate and chosen intensity percentage.
Compare monthly telemedicine subscription fees to avoided in-person visit costs to see when the membership pays for itself.
Estimate monthly out-of-pocket testosterone therapy costs after insurer reimbursement, lab cadence, and HSA or FSA offsets.
Calculate your basal metabolic rate (BMR), the calories your body burns at rest.
Estimate total daily energy expenditure (TDEE) by calculating basal metabolic rate and multiplying by an activity factor.
Project hematocrit drift on testosterone therapy to time phlebotomy, lab checks, and safety reviews before hitting the ceiling.
Calculate hand-arm vibration exposure points.
Approximate sunlight exposure required to synthesize vitamin D.
Estimate minutes of midday sun needed to synthesise a target vitamin D dose based on UV index, exposed skin, and phototype.
Approximate maximal oxygen uptake (VO2 max) from age and resting heart rate.
Convert VO₂max into a projected race finish time by solving the Daniels velocity curve with your chosen intensity and economy.
Calculate your waist-to-height ratio (WHtR) to evaluate body fat distribution.
Compute waist-to-hip ratio (WHR).
Estimate calories burned on a walk using your distance and body weight.
Calculate how many days it could take to reach a weight-loss goal using the classic 3,500-calorie rule.
Estimate your body mass index from height and weight.
Estimate fluid lost during exercise from weight change.
Use the Karvonen heart-rate reserve method to pinpoint the aerobic Zone 2 range that supports endurance training and metabolic health.
Editorial standards
Reviewed by our editorial team. Updated regularly. Sources verified.
