Interest Rate Calculator

Interest Rate Calculator

Solve the nominal annual loan rate from principal, monthly payment and term.

SOBANUKIRWA IGISUBIZO

Ibi bibarwa bite?

Assumes equal monthly payments starting one month after funding, a fixed rate and no balloon payment. Fees are paid at funding or added to the loan balance. This planning estimate is not a jurisdiction-specific regulatory APR disclosure.

Monthly discounted cash flowsNet proceeds = Σ payment / (1 + monthly rate)^k; annual rate = monthly rate × 12

Urugero rufatika

A 12,000 loan repaid in 12 payments of 1,000 implies a zero interest rate.

Igisubizo cyabazwe

Loan proceeds before feesScenarioIgisubizo cyabazwe
20,000117.3617%
25,00027.5001%
30,00030.0747%

Ibyafashwe nk'ukuri, uko ibisubizo bisobanurwa n'amakosa akunze kubaho

Ibyafashwe nk'ukuri mu ibara

  • Payments occur monthly at the end of each period with a fixed payment amount.
  • APR is the monthly cash-flow discount rate multiplied by 12; jurisdiction-specific disclosure rules may differ.
  • Upfront fees reduce net proceeds; financed fees increase the repayment balance.

Uko wasobanura igisubizo

  • Interest rate excludes fees; APR includes the entered loan fees.
  • A payment below principal divided by term would require a negative rate and is not supported.
  • Rounded monthly payments can produce a slightly different implied rate.

Amakosa akunze kubaho ugomba kwirinda

  • Entering an annual payment as a monthly payment.
  • Counting the same fee as both upfront and financed.
  • Treating this planning estimate as a legally compliant lender disclosure.