Birth Control Cost Calculator
Compare the total cost of birth control methods over time. Factor in insurance coverage, copays, and method effectiveness for informed contraception decisions.
Free Pregnancy & Pediatric Calculators
29 toolsPregnancy tests, due dates, pediatric dosing, vaccine schedules, and child growth calculators. Browse our free pregnancy & pediatric tools below — no sign-up required.
Clomid Ovulation Calculator
Estimate ovulation timing, fertile-window timing, and cycle milestones when taking Clomid (clomiphene citrate).
False Negative Pregnancy Test Calculator
Estimate how timing, test sensitivity, and urine concentration can affect the chance of a false negative pregnancy test, and when repeat testing may add useful context.
Ireland Vaccine Queue Estimator
Estimate your position in a vaccine rollout queue using Ireland-style priority groups. Adjust population, supply rate, and priority tiers to model any campaign.
Pediatric Blood Product Worksheet
Estimate pediatric blood-product volumes for pRBCs, platelets, FFP, cryoprecipitate, and whole blood, with blood-volume context and reference infusion rates.
Pediatric GFR Calculator
Estimate glomerular filtration rate in children using Schwartz, Counahan-Barratt, and CKiD formulas. Includes CKD staging and age-specific normal ranges.
Pediatric Maintenance Fluids Calculator
Calculate IV maintenance fluid rates for children using the Holliday-Segar (4-2-1) method. Includes dehydration correction and electrolyte requirements.
Positive Pregnancy Test Calculator
After a positive pregnancy test, estimate gestational age, hCG projections, due date, and key pregnancy milestones based on DPO and hCG levels.
Pregnancy Test at 3 Weeks Calculator
Estimate how likely a pregnancy test is to detect pregnancy at about 3 weeks from the last menstrual period. Frames very-early testing with implantation timing, hCG levels, and test sensitivity.
Pregnancy Test Calculator
Estimate when a pregnancy test is more or less likely to detect pregnancy based on DPO, cycle timing, and test type. Compare general home, early, and blood-test timing context.
Stillbirth Risk Assessment Calculator
Review stillbirth-related risk factors in a simplified educational worksheet that compares selected factors with broad population baseline rates.
Urine Pregnancy Test Calculator
Compare home pregnancy test brands by sensitivity and cost, and factor in urine concentration, hold time, and read window as timing and sensitivity reference points.
Vaccine Efficacy Calculator
Calculate vaccine efficacy from clinical trial data: relative risk, 95% confidence interval, NNV, absolute risk reduction, and statistical significance.
Vaccine Immunity Duration Calculator
Estimate how long vaccine immunity lasts: model antibody decay, T-cell memory, and booster timing based on vaccine type, age, and immunological factors.
Vaccine Production Calculator
Model vaccine manufacturing capacity and timelines: compare platforms (mRNA, viral vector, inactivated), estimate ramp-up, costs, and cold chain requirements.
Vaccine Queue Estimator — Australia
Estimate your place in a vaccine queue for Australia. Adjustable population, supply rates, priority groups, and uptake parameters for any vaccine rollout.
Vaccine Queue Estimator — Canada
Estimate your vaccine queue position in Canada. Model rollout timelines with adjustable population, supply, priority groups, and uptake parameters.
Vaccine Queue Estimator — England
Estimate your vaccine queue position in England. Model rollout timelines with adjustable population, supply, priority groups, and uptake parameters.
Vaccine Queue Estimator — India
Estimate your vaccine queue position in India. Model rollout timelines with adjustable population, supply, priority groups, and uptake parameters.
Vaccine Queue Estimator — Malaysia
Estimate your vaccine queue position in Malaysia. Model rollout timelines with adjustable population, supply, priority groups, and uptake parameters.
Vaccine Queue Estimator — Netherlands
Estimate your vaccine queue position in the Netherlands. Model rollout timelines with adjustable population, supply, priority groups, and uptake.
Vaccine Queue Estimator — Northern Ireland
Estimate your vaccine queue position in Northern Ireland. Model rollout timelines with adjustable population, supply, priority groups, and uptake.
Vaccine Queue Estimator — Philippines
Estimate your vaccine queue position in the Philippines. Model rollout timelines with adjustable population, supply, priority groups, and uptake.
Vaccine Queue Estimator — Scotland
Estimate your vaccine queue position in Scotland. Model rollout timelines with adjustable population, supply, priority groups, and uptake parameters.
Vaccine Queue Estimator — South Africa
Estimate your vaccine queue position in South Africa. Model rollout timelines with adjustable population, supply, priority groups, and uptake.
Vaccine Queue Estimator — United Kingdom
Estimate your vaccine queue position in the UK. Model rollout timelines with adjustable population, supply, JCVI priority groups, and uptake.
Vaccine Queue Estimator — Wales
Estimate your vaccine queue position in Wales. Model rollout timelines with adjustable population, supply, priority groups, and uptake parameters.
Vaccine Strategy Calculator
Model vaccine distribution strategies: compare dosing approaches, estimate rollout timelines, and analyze supply constraints for any population and vaccine.
VTE Risk in Pregnancy Calculator
Review pregnancy and postpartum VTE risk factors in a structured checklist that keeps stage and BMI context visible for educational use.