Interest Rate Calculator

Interest Rate Calculator

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

පිළිතුර තේරුම් ගන්න

මෙය ගණනය කරන්නේ කෙසේද?

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

ප්‍රායෝගික උදාහරණයක්

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

ගණනය කළ ප්‍රතිඵලය

Loan proceeds before feesScenarioගණනය කළ ප්‍රතිඵලය
20,000117.3617%
25,00027.5001%
30,00030.0747%

උපකල්පන, අර්ථකථනය සහ පොදු වැරදි

ගණනය කිරීමේ උපකල්පන

  • 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.

ප්‍රතිඵලය අර්ථකථනය කරන ආකාරය

  • 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.

වළක්වා ගත යුතු පොදු වැරදි

  • 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.