Free tools
Free health & lab report tools
Understand your lab report values in seconds, plus calculators for running an independent diagnostic lab. Instant, no signup, nothing stored or sent.
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Reports & branding
Lab report format builder
Pick a test, add your lab name, colour and logo, and preview a branded report format instantly (37 tests). See how your reports look, white-label, on HealthFlow.
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Referral & payouts
Referral commission calculator
Estimate what your lab pays in doctor / centre referral commissions each month and year, including TDS at 2% (Section 393, formerly 194H).
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Billing & revenue
Lab revenue leakage calculator
Estimate what your lab loses each month to unaudited discounts, referral-payout errors and collection gaps. Every rate is yours to adjust.
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Fitness & body composition
Body fat percentage calculator
Enter neck, waist and height (plus hip for women) to estimate your body fat percentage using the standard US Navy method, with essential/athlete/fitness/average/obese bands.
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Patient lab values
Lab test package builder
Tick your health concerns (fatigue, weight, thyroid, diabetes, heart, liver, kidney, bone/vitamin, general checkup) and see the tests commonly included in packages for them.
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Planning
Health checkup budget calculator
Pick a basic or comprehensive checkup package, or build your own from common tests, and estimate a yearly budget from typical Indian price ranges.
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Patient lab values
HbA1c to average blood sugar (eAG) calculator
Convert an HbA1c% result to estimated average glucose in mg/dL and mmol/L, plus IFCC mmol/mol and the standard reference bands.
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Patient lab values
CBC normal range checker
Enter your Hemoglobin, WBC and Platelet count and instantly see Low / Normal / High against standard adult reference ranges.
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Patient lab values
Blood sugar level chart & mg/dL to mmol/L converter
Convert a glucose reading between mg/dL and mmol/L and see where it falls on the fasting, post-meal and random reference chart.
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Patient lab values
Blood pressure category checker
Enter your systolic and diastolic reading to see your AHA category instantly, from normal to hypertensive crisis, plus the full reference chart.
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Patient lab values
Cholesterol & lipid profile level checker
Enter your Total, HDL, LDL and Triglycerides to see instant flags against standard adult ranges, plus your Total:HDL ratio.
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Patient lab values
TSH & thyroid (T3/T4) range checker
Enter your TSH, T3 or T4 result and see Low / Normal / High against standard adult reference ranges.
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Patient lab values
Vitamin D level checker & unit converter
Convert 25-OH vitamin D between ng/mL and nmol/L and see the deficient, insufficient and sufficient bands.
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Patient lab values
Vitamin B12 level & range checker
Enter your B12 result to see deficient, borderline or normal against the standard adult reference range.
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Patient lab values
Liver function test (LFT) normal range tool
Reference ranges for SGPT/ALT, SGOT/AST, bilirubin, ALP and albumin, with instant flags on the values you enter.
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Patient lab values
Uric acid normal range checker
Enter your uric acid result and sex to see Low / Normal / High against standard sex-specific adult ranges.
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Patient lab values
Ferritin level & range checker
Check your ferritin against standard sex-specific reference ranges, a common marker of the body's iron stores.
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Patient lab values
CRP (C-reactive protein) reference checker
Enter your CRP result to see normal, mildly raised or high against standard reference bands.
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Patient lab values
ESR normal range checker
Enter your ESR with age and sex to see where it falls against the standard age and sex adjusted ranges.
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Patient lab values
Symptom to lab test guide
Pick a common symptom like tiredness, weight change or joint pain and see the tests a doctor often considers, with typical price ranges.
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Referral & payouts
Doctor referral earnings estimator
For referring doctors: estimate your monthly and annual referral earnings, net of TDS at 2% (Section 393, formerly 194H).
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Planning
Lab test price estimator (India)
Pick common tests and see typical Indian price ranges and a summed estimate. Ranges only, not a quote.
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Planning
Annual health checkup planner
Enter your age and sex to see the preventive screenings commonly recommended for you each year.
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Wellness
BMR calculator
Enter your age, sex, height and weight to estimate your Basal Metabolic Rate with the Mifflin-St Jeor formula, plus Harris-Benedict for comparison.
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Test prep
Blood test fasting requirement checker
Pick a test to see whether you need to fast, for how many hours, and simple preparation notes.
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Test prep
Lab test turnaround time guide
Pick a test to see how long results typically take, from same day to several days for cultures and histopathology.
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Planning
Daily calorie calculator
Estimate your BMR and daily calorie needs (TDEE) from your age, height, weight and activity level, with maintain, loss and gain targets.
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Planning
TDEE calculator
Enter your sex, age, height, weight and activity level to see your BMR and estimated Total Daily Energy Expenditure, with the activity multiplier table.
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Wellness
Ideal body weight calculator
Enter your height and sex to see your ideal weight from the Devine, Robinson, Miller and Hamwi formulas, plus a healthy BMI-based range.
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Fertility & cycle tracking
Period / menstrual cycle calculator
Enter your last period date, cycle length and period length to see your next 6 predicted period dates, fertile windows and ovulation days.
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Fertility & cycle tracking
Ovulation & fertile window calculator
Enter your last period date and cycle length to estimate your ovulation day, fertile window and next 3 predicted period dates.
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Fitness & body composition
BMI calculator (Indian/Asian cutoffs)
Enter your height and weight to see your BMI and category using WHO Asian cutoffs (overweight from 23), alongside the standard WHO bands.
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Pregnancy
Pregnancy due date calculator
Estimate your due date from your last period, conception date or IVF transfer date, with your current week and trimester.
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Wellness
Daily protein intake calculator
Enter your body weight and goal (sedentary, active, or building muscle) to see a daily protein range in grams and the g/kg basis.
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Everyday
Age calculator
Enter your date of birth to get your exact age in years, months and days, plus total days and a next-birthday countdown.
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Wellness
Daily water intake calculator
Enter your body weight, activity level and climate to estimate how much water to drink a day, in litres and glasses.
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Wellness
Sleep cycle calculator
Find the best times to sleep or wake up, based on 90-minute sleep cycles and the time it takes to fall asleep.
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Fitness & body composition
Waist-to-hip ratio calculator
Enter your waist and hip measurements to see your ratio and WHO health-risk category by sex.
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Fitness & body composition
Target heart rate zone calculator
Enter your age (and optionally resting heart rate) to see your maximum heart rate and training zones.
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Pregnancy
Pregnancy weight gain calculator
See the total weight gain commonly recommended in pregnancy for your pre-pregnancy BMI, per IOM guidance.
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