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True Cost of Loan Calculator
with Fees, Insurance, Extra Payments and Full Amortization

Calculate the real all-in cost of a loan, not just the monthly payment. See total interest, upfront fees, service charges, insurance, payoff date, amortization schedule, and savings from extra payments or a lump-sum payment.

Currency
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True Cost of Loan Calculator
Section 1: Loan Basics
$
Principal borrowed. Must be greater than 0.
%
Fixed annual percentage rate. V1 supports fixed-rate loans only.
๐Ÿ“…
Month 1 is the first payment cycle after this date.
term
Enter the term together with the selected term unit.
unit
V1 supports monthly payments only.
pay
Locked to monthly in this version.
Section 2: Fees and Add-Ons
$
Charged upfront. Not added to principal in V1.
$
Additional one-time fee at origination.
$
Any other upfront loan fee not covered above.
$
Added to monthly outflow, separate from loan payment.
$
Applied in months 12, 24, 36 and so on while balance remains.
$
Optional monthly add-on cost.
Section 3: Early Payoff Inputs
$
Additional principal paid each month.
$
Optional one-time principal reduction.
mo
Required if lump sum is entered. Month 1 is first payment cycle.
Method note
This calculator models a fixed-rate monthly amortizing loan. Upfront fees are kept separate from principal, monthly and annual charges are added to total outflow, and extra payments reduce balance directly. If a lump-sum month is after payoff, it is ignored and noted below.
True Total Cost of Loan
โ€”
principal, interest and all fees combined
Monthly Loan Payment
โ€”
principal and interest only
Total Repaid Through Loan Payments
โ€”
sum of all scheduled and accelerated loan payments
Total Interest
โ€”
interest paid across the full life of the loan
Upfront Fees
โ€”
origination, processing and other one-time fees
Total Ongoing Fees
โ€”
monthly service and annual charges combined
Insurance / Add-On Cost
โ€”
total optional protection cost
Payoff Time
โ€”
actual months until payoff
Estimated Payoff Date
โ€”
start date shifted by actual payoff month count
Interest Saved vs Baseline
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savings from extra payments and lump sum
Months Saved vs Baseline
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faster payoff compared with base case
Loan Cost
Loan amountโ€”
Total interestโ€”
Total repaid through paymentsโ€”
Monthly loan paymentโ€”
Extra Cost
Origination feeโ€”
Processing feeโ€”
Other one-time feeโ€”
Monthly service feesโ€”
Annual feesโ€”
Insurance totalโ€”
True total costโ€”
Full Breakdown
Loan amountโ€”
Monthly loan paymentโ€”
Total interestโ€”
Total repaid through loan paymentsโ€”
Upfront feesโ€”
Monthly service fees totalโ€”
Annual fees totalโ€”
Insurance totalโ€”
Total cost including feesโ€”
Payoff monthsโ€”
Estimated payoff dateโ€”
Interest saved vs baselineโ€”
Total cost saved vs baselineโ€”
Months saved vs baselineโ€”
Total monthly outflow first monthโ€”
Scenario Table
Scenario Extra Monthly Months to Payoff Total Interest Total Cost Including Fees Total Savings vs Base
Balance and Cumulative Interest Over Time
Remaining balance
Cumulative interest
Amortization Schedule
Month Payment Interest Principal Extra Payment Lump Sum Fees This Month Total Outflow Balance
This calculator is for educational planning and fixed-rate monthly amortizing loans only. Results do not replace lender disclosures, legal loan terms, or regulated APR calculations, and some lenders may treat fees or early payments differently.
โœฆ Cal, AI Explanation
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Your all-in loan cost is ready. Ask me why total cost is much higher than the principal, how fees change the real cost, or what the extra payments changed.

๐Ÿ“Œ What this covers

Fixed-rate monthly amortizing loan cost only
Interest cost separate from fees and insurance
Extra monthly payments and lump-sum payoff effects
True all-in cost, not just the headline payment
Payoff date, scenario table and amortization schedule
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Related Data
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Related Guides
How Loan APR Worksโ†’ Loan Fees Explainedโ†’ How to Pay Off a Loan Fasterโ†’

How the true cost of a loan differs from the monthly payment

The monthly payment is only one part of the story. A borrower can look at a comfortable monthly payment and still miss the real total amount paid over the life of the loan. Interest stretches the repayment total far above the original principal, and fees can add another meaningful layer on top.

This calculator separates the core loan payment from the full all-in outflow so you can see the difference between what repays the debt and what simply increases the total borrowing cost.

The core formula

Monthly Payment = fixed amortization formula for principal and interest
Total Repaid Through Payments = sum of loan payments over the payoff period
Total Fees = upfront fees + monthly fees + annual fees + insurance + other fees
True Total Cost = Total Repaid Through Payments + Total Fees
Upfront fees are not financed into principal in this version. They stay separate from the loan balance.

Why fees matter even when the rate looks low

A loan can advertise a moderate interest rate and still become expensive because of front-loaded fees, monthly service charges, and optional protection products. These items do not always change the quoted loan payment, but they absolutely change the total amount of money that leaves your pocket.

That is why total cost including fees is often the more important comparison figure than payment alone.

Cost Type Where It Shows Up What It Changes
InterestInside the loan paymentTotal repaid through loan payments
Origination / processing feesUpfrontTotal cost including fees
Monthly service feesOutside the paymentTotal monthly outflow and total cost
Annual feesSpecific monthsTotal cost including fees
Insurance / protectionMonthlyTotal cost including fees

How extra payments reduce real borrowing cost

Extra monthly payments and lump-sum reductions attack the principal earlier, which means less interest accrues later. That can shorten the loan by months or even years depending on the balance, rate, and timing of the extra payment activity.

This calculator measures that effect against a baseline case so you can see interest saved, total cost saved, and payoff months saved.

APR, payment and total cost are not the same thing

APR is a standardized rate concept, but borrowers often confuse it with the actual amount they will end up paying. The payment tells you the regular loan installment. The true total cost tells you what the loan actually costs when the repayment stream and extra charges are all counted together.

Frequently Asked Questions

Is APR the same as total loan cost?+
No. APR is a rate measure. Total loan cost is the actual amount paid across the life of the loan, including interest and the fees modeled in the calculator. Use the result as a loan estimate, not as a guaranteed quote. Real loan cost can change with lender fees, compounding method, repayment frequency, early repayment rules, credit score, taxes, insurance, and variable interest rates. Compare the calculator output with the official loan agreement before making a decision.
Why are fees not included in the monthly payment?+
Because the core loan payment in this calculator is reserved for principal and interest. Monthly, annual and upfront fees are shown separately so the real all-in outflow is clearer. Use the result as a loan estimate, not as a guaranteed quote. Real loan cost can change with lender fees, compounding method, repayment frequency, early repayment rules, credit score, taxes, insurance, and variable interest rates. Compare the calculator output with the official loan agreement before making a decision.
Does a lower payment always mean a cheaper loan?+
No. A lower payment can simply mean a longer loan term, which often increases total interest and total cost. Use the result as a loan estimate, not as a guaranteed quote. Real loan cost can change with lender fees, compounding method, repayment frequency, early repayment rules, credit score, taxes, insurance, and variable interest rates. Compare the calculator output with the official loan agreement before making a decision.
Are extra payments always worth it?+
For a fixed-rate amortizing loan, extra payments usually reduce total interest and shorten the payoff timeline. Whether that is the best use of cash depends on your broader financial priorities, but the loan math usually improves. Use the result as a loan estimate, not as a guaranteed quote. Real loan cost can change with lender fees, compounding method, repayment frequency, early repayment rules, credit score, taxes, insurance, and variable interest rates. Compare the calculator output with the official loan agreement before making a decision.
What happens if I make a lump-sum payment?+
The lump sum is applied directly to principal in the selected month. That reduces the balance immediately and lowers future interest, unless the loan would already be paid off before that month. Use the result as a loan estimate, not as a guaranteed quote. Real loan cost can change with lender fees, compounding method, repayment frequency, early repayment rules, credit score, taxes, insurance, and variable interest rates. Compare the calculator output with the official loan agreement before making a decision.