APR calculator
Estimate the annualized monthly discount rate after upfront fees.
Formula
P − fees = Σ payment/(1+r)^k; APR = 12r×100%
Loan principal = 1,000 · Contract nominal rate (%) = 5 · Years = 5 · Upfront fees = 50
How to use
- Enter principal, contract rate and whole years.
- Enter upfront fees paid from the loan proceeds.
- Compare estimated APR, payment and net proceeds.
Examples
- 1200, 0%, one year, no fees: APR 0%.
- 1200, 12%, one year, no fees: APR 12%.
Frequently asked questions
Which APR convention is used?
The monthly actuarial rate multiplied by 12, not the effective annual yield.
Which costs should I enter?
Fees paid at origination that reduce net proceeds; fee eligibility varies by jurisdiction.
Will this match every disclosure?
No. Irregular dates, financed fees and local disclosure rules need a separate model.
Sources
Updated: