PakVita tools

Free health calculators for Pakistan

Practical browser-based tools with visible sources and privacy-first calculations.

A photo sequence of drinking water, a balanced breakfast and a quiet sleep setting
Explore everyday health questions with the calculators below.

How we check calculators

Reproduce four sample calculations, read the formulas, and see what the checks can and cannot establish.

Take questions to your appointment

Choose and print medicine questions for a doctor or pharmacist. No patient details are requested.

Child Growth Percentile

Estimate child height, weight, BMI, and head circumference percentiles in browser.

Waist Ratio Calculator

Calculate waist-to-height and waist-to-hip ratios with South Asian cutoffs.

Calorie & Macro Calculator

Daily calories and macros with Pakistani food equivalents like roti, daal, and rice.

Period & Ovulation Tracker

Private cycle, ovulation, and fertile-window predictions stored only in the browser.

Sleep Calculator

Find bedtime or wake-up times with 90-minute sleep cycles and optional Fajr-aware mode.

Water Intake Calculator

Personalised daily hydration target by weight, climate, activity level, and Ramadan fasting — not the generic 8-glasses rule.

Ramadan Medication Planner

Personalised Ramadan timing plans for 16 common medicines, with city-specific fasting hours and clinical risk flags.

BMI Calculator

BMI with both WHO standard and South Asian (Pakistan) cutoffs — overweight ≥ 23, obese ≥ 27.5.

Pregnancy Due Date

Estimate due date (EDD) from LMP or conception date. Shows trimester, gestational age, and milestones.

Paediatric Dose Calculator

Weight-based Calpol (paracetamol) and Brufen (ibuprofen) doses for children — per-dose ml, interval, daily max.

eGFR Calculator

Estimate kidney function (eGFR) and CKD stage using the modern CKD-EPI 2021 race-free equation.

HbA1c Converter

Convert HbA1c (%) to estimated average blood glucose (mg/dL) using the ADAG formula, with ADA targets.

AQI Smog Risk Calculator

Check your health risk from today's AQI — outdoor activity guidance, mask advice, and sensitive-group mode for Pakistan smog.

Blood Pressure Checker

Enter systolic and diastolic readings to get your ACC/AHA 2017 category — Normal, Elevated, Stage 1, Stage 2, or Crisis.

Pregnancy Weight Gain

Check if your weight gain is on track using IOM 2009 targets by pre-pregnancy BMI — metric and imperial supported.

EPI Vaccine Schedule

Pakistan's official EPI 2024 immunisation schedule — enter your child's age to see which vaccines are due, overdue, or upcoming.

Heatstroke Risk Calculator

Heat index calculator for Pakistan summers — with activity level, age group, and hydration adjustments for Karachi, Lahore, and more.

Pack-Years Calculator

Calculate your smoking pack-years and USPSTF lung cancer screening eligibility, plus estimated cost in PKR.

WHO ORS & Dehydration Calculator

Calculate WHO Plan A & Plan B oral rehydration solution (ORS) volumes in mL and paediatric zinc doses by weight.

Deep-dive guides

Focused explainers under each calculator — answering the specific question behind the result.