RV Loan Interest Calculator

Periodic payment formulas are based on fixed‑rate loan amortization: periodic_rate = annual_rate / payments_per_year, and payment = (principal * periodic_rate) / (1 - (1+periodic_rate)^(-N)). For balloon payments the present value of the balloon is discounted and subtracted from principal when deriving the regular payment.

Bi‑weekly accelerated payments are derived by halving the standard monthly payment and applying 26 payments per year; this commonly results in an effective extra payment per year and earlier payoff. All 'total interest' and 'total paid' estimates assume the stated extra contribution is applied each scheduled payment and the balloon (if any) is paid in full at term end.

This tool provides estimates suitable for planning. Exact amortization, escrow, fees, rounding and lender policies can change final figures; see the accuracy and regulatory notes below.

Choose monthly, bi‑weekly standard, bi‑weekly accelerated, or balloon methods to compare payment and interest outcomes. Use extra payment inputs for simple scenario analysis.

For formal loan terms, request a detailed amortization schedule and Truth in Lending (TIL) / Loan Estimate from your lender. This tool is a planning aid, not a legal disclosure.

Example: $50,000 principal, 6.5% APR, 20 years, no balloon, no extras — monthly payment uses payments_per_year=12; bi‑weekly standard uses payments_per_year=26 and will change periodic payment accordingly.

Example: Same loan with accelerated bi‑weekly (monthly/2) typically shortens scheduled payoff and reduces total interest versus pure monthly payments, because 26 half‑monthly payments approximate 13 full monthly payments per year.