APR Calculator
Estimate a loan's annual percentage rate from its reducing-balance interest rate, term, processing fee, mandatory upfront charges, and charges financed into the EMI.
- annual percentage rate
- loan apr
- effective loan rate
- processing fee
- true cost of loan
The principal stated in the loan offer before any upfront deductions.
The quoted reducing-balance annual interest rate, before fees.
The number of equal monthly instalments in the repayment schedule.
A fee deducted at disbursal or paid separately. Include applicable tax if charged.
Credit assessment, documentation, verification, or other required charges included in APR.
Optional charges repaid through the EMI instead of deducted from disbursal.
Status: initial
Results
Awaiting calculation
Quoted rate versus APR
The visual comparison updates after calculation so the cost added by mandatory charges is immediately visible.
Compare a loan offer in three checks
- 1Copy the principal, reducing-balance rate, term, and mandatory charges from the Key Facts Statement.
- 2Compare APR with APR, then review the EMI and total borrowing cost in rupees.
- 3Check rate changes, prepayment conditions, security, and exclusions before deciding.
For a fair comparison, enter the same amount and term for every offer and include only charges that apply to each loan's APR disclosure.
See the annual cost behind a quoted loan rate
A lender's interest rate describes interest on the repayment balance. APR goes further by relating the EMIs and included charges to the amount you actually receive. Enter the figures from a loan offer or Key Facts Statement to estimate both measures side by side.
Use APR to compare like-for-like loan offers
Use this calculator when two loans have different processing fees, mandatory charges, or financed costs. APR creates one annualized comparison rate, while the EMI, total paid, and cost breakdown keep the rupee impact visible. The result is an estimate, not a lender disclosure.
How this calculator estimates APR
First, the quoted reducing-balance rate produces the scheduled EMI. Upfront charges reduce the net amount received, while financed charges increase the balance repaid. A cash-flow solver then finds the monthly rate whose discounted EMIs equal that net disbursal. Multiplying the monthly rate by 12 produces the estimated nominal APR.
Variable explanations
Understand what each input and result means before calculating.
Loan amount
The principal stated in the offer before upfront fees are deducted. Do not enter the total of all EMIs here.
Quoted interest rate
The annual reducing-balance rate used to calculate the scheduled EMI, excluding fees.
Processing fee
A one-time origination or processing charge paid separately or withheld from disbursal. Include applicable tax when it is part of the mandatory cost you pay.
Other mandatory upfront charges
Required credit assessment, verification, documentation, administrative, or similar charges paid before or at disbursal.
Financed charges
Charges added to the repayment balance rather than withheld from the amount disbursed. They increase the EMI and may accrue interest.
APR uplift
The number of percentage points by which the estimated APR exceeds the quoted interest rate because of included charges.
Reviewed by the Calculator.org.in Editorial Team
Formula behavior, validation cases, explanatory examples, and cited sources are checked before publication. This review supports educational accuracy and is not a substitute for qualified professional advice.
Last reviewed: 2026-08-09
Formula guide
See the calculation logic, variable definitions, and practical meaning.
Monthly EMI
EMI = B × r × (1 + r)^n ÷ ((1 + r)^n − 1)
- B = loan amount + charges financed through EMI
- r = quoted annual interest rate ÷ 12
- n = number of monthly instalments
This is the standard reducing-balance instalment formula. At a 0% rate, EMI equals B ÷ n.
Net amount received
Net disbursal = Loan amount − processing fee − other upfront charges
- Only charges included in the APR comparison should be entered.
A fee withheld at disbursal means the borrower receives less cash while still repaying the scheduled loan.
Cash-flow APR
Net disbursal = Σ[EMI ÷ (1 + i)^k]; APR = i × 12 × 100
- i = solved monthly cash-flow rate
- k = payment number from 1 to n
The rate is solved numerically because it appears in every discounted payment term.
Effective annual cost
Effective annual cost = ((1 + i)^12 − 1) × 100
- i = solved monthly cash-flow rate
This companion result shows annual compounding and should not be confused with the nominal APR output.
Worked examples
Follow realistic inputs through the calculation step by step.
Worked example
Personal loan with an upfront processing fee
- 1Enter a ₹5,00,000 loan, 12% interest, 36 months, and a ₹10,000 upfront processing fee.
- 2The borrower receives ₹4,90,000 but the EMI is still calculated on ₹5,00,000.
- 3The estimated APR is therefore higher than the quoted 12% rate.
Worked example
Offer with processing and verification charges
- 1Enter every mandatory charge shown in the offer: for example ₹8,000 processing and ₹2,000 verification.
- 2Keep optional late-payment and contingent penalty charges out of the estimate.
- 3Compare the resulting APR and total borrowing cost with another offer using the same amount and term.
Worked example
Charge financed into the EMI
- 1Enter a ₹3,00,000 loan and a ₹6,000 financed charge.
- 2The amount received remains ₹3,00,000, while the EMI balance becomes ₹3,06,000.
- 3The APR captures the higher payments caused by the financed charge.
Worked example
Zero-interest loan with a fee
- 1Set the quoted rate to 0% and enter the mandatory fee.
- 2Even though there is no stated interest, the cash-flow APR can be above zero.
- 3This helps reveal the cost of fee-based short-term offers.
Common mistakes
Avoid these common input and interpretation errors.
Comparing APR with a plain interest rate
Compare APR to APR. A quoted interest rate usually excludes fees, so comparing it directly with another offer's APR is misleading.
Entering a flat rate as a reducing-balance rate
Flat-rate and reducing-balance loans create different payment cash flows. Use the reducing-balance annual rate shown in the repayment terms.
Counting the same fee twice
Enter a charge as upfront or financed according to the offer, not in both fields.
Including contingent penalties
Late fees, bounce charges, and penalties that apply only after a future event are normally different from origination costs. Follow the lender's KFS classification.
Ignoring payment timing differences
This model assumes equal monthly payments starting one month after disbursal. Irregular, weekly, bullet, moratorium, or variable-rate schedules require their actual dated cash flows.
Frequently asked questions
Quick answers to the questions users ask most often.
What is APR on a loan?
Why is APR higher than the interest rate?
Can APR equal the interest rate?
Does this calculator follow the RBI concept of APR?
Should GST on the processing fee be included?
What is the difference between APR and effective annual cost?
Can I use this for weekly, bullet, or irregular repayments?
Is the lowest APR always the best loan?
References
Sources used to support the calculator guidance.
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Version history
A transparent record of calculator content updates.
- 1.0.0 · 2026-08-09
Initial independent release with INR inputs, upfront and financed charge treatment, cash-flow APR, effective annual cost, cost breakdown, and amortization summary.