Health Tools
BMI and daily health or fitness tools.
Pregnancy Due Date
Calculate your Estimated Due Date (EDD) and track your pregnancy timeline.
Ovulation Calculator
Estimate a likely fertile window and ovulation date.
Age & Date Difference
Calculate exact age in years, months, and days.
Asian BMI & Ideal Weight
Check your Body Mass Index against WHO Asian thresholds.
BMR & Calorie Needs
Find your BMR, daily maintenance calories, and a target for losing or gaining weight.
Blood Donation Date
Find when you can next give blood under the NBTS four-month interval and donor criteria.
Health and wellbeing calculators
Use simple health formulas to explore BMI, pregnancy dates, and cycle estimates without creating an account. Calculations happen in your browser and are intended to support informed conversations, not diagnose a condition.
Health estimates are based on population formulas and dates entered by the user. Individual circumstances can produce a different result, so seek clinical advice when the answer affects care or treatment.
Choose the right health calculator
- Check BMI and an indicative weight rangeCompare height and weight using South Asian BMI thresholds.
- Estimate a pregnancy due dateUse the last menstrual period or conception date to estimate EDD and trimesters.
- Estimate a fertile windowUse cycle dates and average length to estimate likely ovulation timing.
Understanding health calculator results
BMI is a screening measure rather than a direct measurement of body fat or health. Pregnancy and ovulation dates are estimates based on typical cycle and gestation patterns; irregular cycles, assisted conception, ultrasound findings, and medical history can change the clinically relevant date.
Do not use an online result for emergency decisions, contraception, medication changes, or diagnosis. Contact a qualified healthcare professional when symptoms, pregnancy care, or personal risk factors require an individual assessment.