Sundhed og fitness

Beregn dit Body Mass Index (BMI) ud fra højde og vægt, med WHO's vægtkategori.

Estimer din kropsfedtprocent med den amerikanske flådes omkredsmetode ved hjælp af mål af hals, talje, hofte og højde i centimeter.

Beregn dit daglige kaloriebehov (TDEE) med Mifflin-St Jeor-ligningen og få målkalorier til at tabe, vedligeholde eller tage på i vægt.

Find ud af hvor mange uger og dage gravid du er ud fra din sidste menstruation (SM), med trimester, anslået termin og resterende dage.

Beregn din maksimale puls og de fem træningszoner i slag per minut ud fra din alder, til smartere konditionstræning.

Find din ideelle kropsvægt i kilogram ud fra din højde og dit køn ved hjælp af den udbredte Devine-formel, med et sundt referenceområde.

Anslå dit én-gentagelsesmaksimum (1RM) ud fra et sæt med Epley-formlen, plus et procentdiagram over træningsbelastninger (95 %–70 %) med målrep-intervaller.

Anslå din ægløsningsdag og dit frugtbare vindue ud fra din sidste menstruation og cykluslængde, plus datoen for din næste forventede menstruation. Gratis ægløsnings- og frugtbarhedsberegner.

Følg din graviditet uge for uge. Indtast din sidste menstruation for at finde din nuværende gestationsalder, trimester, anslåede termin og hvor langt du er.

Anslå din graviditetstermin med Naegeles regel ud fra din sidste menstruation og cykluslængde. Se gestationsalder, trimester og undfangelsesdato.

Beregn dit talje-hofte-forhold (WHR) og se din sundhedsrisikokategori baseret på Verdenssundhedsorganisationens grænseværdier for mænd og kvinder.

Estimer, hvor meget vand du bør drikke hver dag baseret på din kropsvægt og daglige motion, vist i liter, milliliter og kopper.

Estimer dit basalstofskifte (BMR) og daglige kaloriebehov ved hjælp af Mifflin-St Jeor-ligningen.

Beregn kropsoverfladeareal (BSA) i kvadratmeter ud fra højde og vægt ved hjælp af den simple og præcise Mosteller-formel.

Beregn det daglige kaloriemål, du har brug for for at tabe dig. Indtast dine vedligeholdelseskalorier (TDEE) og et ugentligt mål for at få et sikkert dagligt indtag og underskud.

Anslå forbrændte kalorier under træning med MET-værdier fra Compendium of Physical Activities. Vælg en aktivitet, indtast din vægt og varighed.

Anslå den dato, du blev gravid, ud fra din sidste menstruation eller din termin, med et sandsynligt frugtbart undfangelsesvindue på et par dage.

Estimer din fedtfri masse (LBM) i kilogram ud fra vægt, højde og køn ved hjælp af Boer-formlen, plus omtrentlig fedtmasse.

Omregn daglige kalorier til gram kulhydrat, protein og fedt til balancerede, lavkulhydrat- eller proteinrige kostfordelinger.

Forudsig start- og slutdatoerne for dine næste 3 menstruationer og din anslåede ægløsningsdag ud fra din sidste menstruation og gennemsnitlige cykluslængde.

Beregn dit løbetempo i minutter per kilometer, fart i km/h og tempo per mile ud fra en distance og sluttid.

Find den bedste sengetid eller det bedste vågetidspunkt ved hjælp af 90-minutters søvncyklusser. Vågn mellem cyklusser, ikke midt i en cyklus, for at føle dig mere udhvilet og mindre omtåget.

Anslå dit samlede daglige energiforbrug (TDEE) ud fra dit BMR og aktivitetsniveau med Mifflin-St Jeor-ligningen, med kaloriemål for vægttab, vedligehold og vægtøgning.

Calculate the Ankle-Brachial Index (ABI) from ankle and arm systolic pressures to screen for peripheral arterial disease (PAD).

Calculate your Army Combat Fitness Test (ACFT) score for all six events and see your total out of 600.

Calculate the urine albumin-to-creatinine ratio (ACR) from a spot urine sample to assess kidney health and CKD albuminuria category.

Estimate VO₂max from the Queens College Step Test 3-minute protocol — enter your 15-second post-exercise pulse count to get your aerobic fitness category.

Calculate the Apnea-Hypopnea Index (AHI) from a sleep study and classify sleep apnea severity per AASM guidelines.

Calculate the Absolute Neutrophil Count (ANC) from a CBC differential and classify neutropenia severity.

Calculate the APRI score (AST-to-Platelet Ratio Index) to estimate the probability of liver fibrosis and cirrhosis.

Estimate your blood alcohol concentration (BAC) using the Widmark formula. Enter drinks, weight, sex and time elapsed.

Calculate your Body Adiposity Index (BAI) — an estimate of body fat percentage from hip circumference and height, requiring no scale.

Analyse your basal body temperature (BBT) reading against your follicular baseline to detect the post-ovulation thermal shift and estimate cycle phase.

Calculate Biologically Effective Dose (BED) and EQD2 for any radiation therapy fractionation schedule using the linear-quadratic model.

Estimate Basal Energy Expenditure using the revised Harris-Benedict equation with optional stress and activity factors for clinical nutrition.

Score the Brief Interview for Mental Status (BIMS), a CMS MDS 3.0 cognitive screening tool used in nursing homes — three parts, total 0–15.

Calculate your Body Roundness Index (BRI) from height and waist circumference — a shape-based body fat estimate that outperforms BMI.

Calculate body surface area (BSA) in m² using the Mosteller, Du Bois, or Haycock formula — with a side-by-side comparison of all three.

Calculate the age-adjusted Charlson Comorbidity Index (CCI) from patient age and weighted comorbid conditions. Estimates 10-year survival probability.

Estimate creatinine clearance (CrCl) and kidney function stage using the Cockcroft-Gault equation from age, sex, weight, and serum creatinine.

Look up the NIH Dietary Reference Intake (RDA/AI) for protein, fibre, vitamins, and minerals by age and sex.

Calculate your estimated due date and current pregnancy week using Naegele's rule, adjusted for your personal cycle length.

Estimate your kidney filtration rate (eGFR) using the CKD-EPI 2021 race-free equation from serum creatinine, age, and sex.

Calculate your new ELO rating and points gained or lost after a match using the standard ELO formula for win, draw, or loss.

Calculate power output, calories burned and distance for a rowing ergometer workout from your 500 m split time using the Concept2 formula.

Estimate how long EtG (ethyl glucuronide) remains detectable in urine after alcohol consumption, based on drinks consumed and time elapsed.

Calculate your daily fat intake in grams from total calories and a fat percentage target, with protein, carb, and saturated fat breakdowns.

Calculate the Front of Center (FOC) percentage for an arrow using length and balance point — essential for tuning accuracy and stability in archery.

Calculate a premature baby's corrected (adjusted) age by subtracting weeks born early from their chronological age.

Calculate the Glycemic Load (GL) of a food from its Glycemic Index (GI) and carbohydrate content per serving.

Calculate the Glucose Infusion Rate (GIR) in mg/kg/min from dextrose concentration, infusion rate, and patient weight.

Calculate the Glasgow Coma Scale score from eye, verbal, and motor responses to assess level of consciousness.

Calculate the Hepatic Steatosis Index (HSI) from ALT, AST, BMI, sex and diabetes status to screen for non-alcoholic fatty liver disease.

Calculate ICC(1,1) or ICC(1,k) from one-way ANOVA mean squares to assess inter-rater or test-retest reliability, plus SEM and MDC₉₅.

Calculate the validated ICH Score (0–6) from GCS, hemorrhage volume, IVH, location and age to estimate 30-day mortality risk.

Calculate the International Normalized Ratio (INR) from PT, mean normal PT, and ISI — with therapeutic range interpretation for warfarin monitoring.

Calculate the Injury Severity Score (ISS) from AIS region scores to classify trauma severity from minor to unsurvivable.

Estimate LDL cholesterol from Total Cholesterol, HDL and Triglycerides using the Friedewald equation (mg/dL or mmol/L).

Calculate the MCA-PSV Multiple of Median (MoM) for fetal anemia screening using the Mari 2000 formula. For use with specialist guidance.

Convert any opioid dose to morphine milligram equivalents (MME/day) using CDC 2022 conversion factors.

Calculate the Neutrophil-to-Lymphocyte Ratio (NLR) from CBC counts — a rapid blood-test marker for systemic inflammation.

Calculate NNT, NNH, ARR, RRR, Relative Risk and Odds Ratio from control and experimental event rates.

Calculate the real-world noise reduction and protected dBA level from a hearing protector's NRR rating, using NIOSH or EPA methods.

Interpret a post-void residual (PVR) bladder scan — residual fraction, estimated capacity, and clinical severity category.

Calculate the Physiological Strain Index (PSI) from core body temperature and heart rate to quantify heat stress during exercise or occupational heat exposure.

Calculate the heart-rate-corrected QT interval (QTc) using Bazett, Fridericia, Framingham or Hodges formula — with prolongation risk interpretation.

Calculate your Resting Metabolic Rate (RMR) and TDEE using Mifflin-St Jeor or Katch-McArdle — choose based on whether you know your body fat %.

Calculate your bone density T-Score from a DXA scan BMD (g/cm²) and get a WHO classification: normal, osteopenia, or osteoporosis.

Calculate the IV Alteplase (tPA) dose for acute ischemic stroke: total dose, IV bolus, and 60-minute infusion by patient weight.

Calculate the Urea Reduction Ratio (URR) from pre- and post-dialysis BUN values to assess haemodialysis adequacy against the KDOQI ≥ 65 % target.

Calculate wound area reduction (WAR%) from initial and current wound dimensions to track healing progress and apply the validated 4-week 40% threshold.