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39 reviewed toolsHemoglobin unit converter
Convert a reported hemoglobin or haemoglobin value between g/dL and g/L with exact factor-of-ten arithmetic and no medical interpretation.
Open toolFreeSupplementsEPA and DHA label calculator
Multiply EPA and DHA amounts from a label by the servings entered, then see separate and combined totals without dose or target advice.
Open toolFreeBlood resultsCRP unit converter
Convert a CRP or hs-CRP result between mg/L and mg/dL with exact factor-of-ten arithmetic and no clinical interpretation.
Open toolFreeSleep and recoveryCaffeine intake calculator
Add the caffeine stated on up to six product labels. Exact local arithmetic in milligrams, with no safe-limit, dose or timing advice.
Open toolFreePreventive healthAlcohol-free streak calculator
Count completed alcohol-free calendar days between two dates, plus the inclusive streak day and exact weeks-and-days breakdown.
Open toolFreeBlood resultsBlood pressure unit converter
Convert a blood pressure value between millimetres of mercury (mmHg) and kilopascals (kPa) using the conventional unit relationship, without interpreting the reading.
Open toolFreePreventive healthCelsius to Fahrenheit converter
Convert one recorded temperature between degrees Celsius and degrees Fahrenheit using the exact scale relationship, without interpreting the reading.
Open toolFreeWeight and nutritionKilograms to pounds converter
Convert one body-weight or training-weight value between kilograms (kg) and international avoirdupois pounds (lb), without judging the weight or calculating a dose.
Open toolFreeFitness and heart healthRunning speed converter
Convert one running, walking or treadmill speed between kilometres per hour and miles per hour using the exact international-mile relationship.
Open toolFreeBlood resultsCholesterol and triglyceride unit converter
Convert cholesterol or triglycerides between mg/dL and mmol/L with the correct analyte-specific factor and no invented health bands.
Open toolFreeWeight and nutritionKilojoules to calories converter
Convert food energy between kilojoules (kJ) and kilocalories (kcal) using the exact 4.184 factor, with clear units and private on-device calculation.
Open toolFreeBlood resultsBilirubin unit converter
Convert one reported bilirubin value between mg/dL, µmol/L and mg/L with transparent arithmetic, careful rounding and private local calculation.
Open toolFreeBlood resultsCreatinine unit converter
Convert serum or plasma creatinine between mg/dL and µmol/L with the standard 88.4 factor, clear rounding and private on-device calculation.
Open toolFreeSupplementsVitamin D IU to mcg converter
Convert vitamin D2 or D3 label amounts between international units (IU) and micrograms (mcg) using the exact 1 mcg = 40 IU relationship.
Open toolFreeWeight and nutritionWeight loss percentage calculator
Calculate weight change as a percentage of your starting weight. See the amount and whether the current value is lower, higher or unchanged.
Open toolFreeWeight and nutritionSodium to salt converter
Convert food-label sodium in milligrams to salt equivalent in grams, or salt grams back to sodium, using the standard 2.5 factor.
Open toolFreeBlood resultsTestosterone unit converter
Convert a reported total or free testosterone value between the matching units, with explicit free ng/dL modes, transparent factors and no reference-range interpretation.
Open toolFreeBlood resultsUric acid unit converter
Convert a reported uric acid value between mg/dL, µmol/L and mmol/L with the 59.48 factor, transparent rounding and private calculation.
Open toolFreeSupplementsSupplement bottle calculator
Estimate how many days a supplement container will last from the amount in it and the amount used per day. Inputs and results stay in your browser.
Open toolFreeBlood resultsBlood glucose unit converter
Convert blood glucose between mmol/L and mg/dL with a NIST-derived factor, clear rounding and private on-device calculation. Free, with no sign-up.
Open toolFreeBlood resultsBiomarker percentage change calculator
Calculate the relative change between two comparable biomarker results. See the percentage magnitude and whether the new value is higher, lower or unchanged.
Open toolFreeBlood resultsFolate unit converter
Convert a reported total folate result between ng/mL, µg/L and nmol/L using the conventional 2.265 factor, with clear specimen boundaries.
Open toolFreeFitness and heart healthPace calculator
Calculate pace, elapsed time or distance for a run or walk. See exact metric and imperial pace and speed equivalents with no fitness judgement.
Open toolFreeWeight and nutritionWaist-to-height ratio calculator (WHtR)
Calculate your waist-to-height ratio and equivalent percentage in centimetres or inches. See careful measurement guidance and limitations without a risk label.
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