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Calculators
KPop Merch per Fan per Year
Estimates kpop merch items an average fan buys yearly (5 to 30 depending on engagement).
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Rent Adjustment Calculator
Compute annual rent adjustment by IGP-M or IPCA accumulated in the last 12 months (manually configurable).
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Pregnancy Calculator
Compute estimated due date (EDD), gestational age and trimester from the last menstrual period (LMP).
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Fertile Period Calculator
Compute fertile window and ovulation day from the first day of the last cycle and the average cycle length.