CAC Payback Period Calculator
Compare constant-contribution CAC payback with a churn-adjusted cohort schedule for subscription or one-time purchase economics.
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Student Loan Grace-Period Interest Calculator
Separate simple daily interest accrual from capitalization and compare the resulting fixed-payment balance without assuming a student-loan program.
Medical Bill Copay Coinsurance Estimator
Reconcile an allowed medical amount through deductible, coinsurance, an explicit copay rule and the remaining out-of-pocket limit.
Dental Insurance Annual Maximum and Copay Calculator
Run preventive, basic and major allowed amounts through entered dental deductible, plan shares, waiting status and annual maximum.
Mortgage Recast Calculator: Lower Payment vs. Faster Payoff
Estimate a mortgage recast payment after a lump sum. Compare leaving the loan unchanged, recasting, and retaining the original payment…
Rental Property Cash-on-Cash Return Calculator
Calculate annual pre-tax cash-on-cash return using all entered acquisition cash, rehabilitation cash and committed reserves.
Publisher Page RPM and Ad Fill Revenue Simulator
Model publisher revenue and page RPM from pageviews, impression density, fill and effective CPM without equating publisher earnings with advertiser…
Credit Card Grace Period and Residual Interest Estimator
Estimate residual interest between two entered dates using an explicit grace-period status, payment amount and simple-daily or daily-compounding method.
Private Mortgage Insurance Removal Equity Calculator
Compare current and original-value LTV, project a selected balance threshold and keep PMI cancellation conditions explicit.
FSA Use-It-or-Lose-It Balance Planner
Project an employer health FSA balance through eligible spending, a documented carryover or grace period, and potential forfeiture.