Loan Comparison Calculator
Compare personal or auto loans side by side: monthly payment, total interest, the effective APR once fees are included, and what an extra monthly payment saves.
Cash borrowed, before fees
Nominal rate used for amortisation
= 5.0 years
$250.00 deducted from the cash you receive
Charged only if repaid early
Cash borrowed, before fees
Nominal rate used for amortisation
= 4.0 years
$125.00 deducted from the cash you receive
Charged only if repaid early
Cash borrowed, before fees
Nominal rate used for amortisation
= 6.0 years
$625.00 deducted from the cash you receive
Charged only if repaid early
Cheapest by total cost
Credit union — 48 months
$28,252.05
Lowest effective APR (with fees)
Credit union — 48 months
6.16 %
Lowest monthly payment
Dealer finance — 72 months
$453.12 per month
Interest saved by the extra payment
$1,013.61
Bank A — 60 months: repaid in 49 months (11 months sooner)
Extra monthly payment
The extra is added to every payment of the selected loan, so it is repaid early and pays less interest. A prepayment penalty is charged only when that early payoff happens.
- Interest saved
- $1,013.61
- Months saved
- 11 months
- Actual payoff month
- #49 of 60
Before: $5,056.92 interest over 60 months ($30,306.92 total). After: $4,043.31 interest over 49 months ($29,293.31 total).
Total cost vs. term length
Each line re-prices that loan from 12 to 84 months at its own rate and amount; the ring marks the term you entered. Longer terms always cost more in total, less per month.
Cumulative interest over time
Interest paid to date for each loan (including the extra-payment run where it applies). A line that flattens has been repaid.
Comparison table
Basis: total cost = principal + all scheduled interest + origination fee. The prepayment penalty counts only when the extra-payment route repays a loan early.
| Loan | Amount | APR | Effective APR | Monthly | Total interest | Total cost | Cash up front | Interest saved |
|---|---|---|---|---|---|---|---|---|
| Bank A — 60 months60 months (5.0 yr) | $25,000.00 | 7.50% | 7.92% | $500.95 | $5,056.92 | $30,306.92 | $24,750.00 | $1,013.61 |
| Credit union — 48 months48 months (4.0 yr) · cheapest total cost | $25,000.00 | 5.90%best | 6.16% | $585.98 | $3,127.05 | $28,252.05 | $24,875.00 | $0.00 |
| Dealer finance — 72 months72 months (6.0 yr) | $25,000.00 | 9.20% | 10.13% | $453.12 | $7,624.93 | $33,249.93 | $24,375.00 | $0.00 |
Credit union — 48 months is cheapest by total cost, $4,997.88 less than the most expensive option; Credit union — 48 months has the lowest effective APR at 6.16% (0.26 points above its quoted rate).
Break-even between two loans
The two outlay paths never cross within the compared term.
Credit union — 48 months is never the more expensive of the two at any month and finishes $1,041.26 ahead — so it is cheaper within the term.
Cumulative outlay = origination fee + every payment made so far + the prepayment penalty once a loan is repaid. The verdict holds while the monthly payment stays fixed.
Assumptions
- Payments are monthly, level and on time; no late fees or missed payments.
- The APR you type is the nominal rate used for amortisation — interest compounds monthly at APR ÷ 12.
- The origination fee is a percentage of the amount borrowed and is deducted from the cash you receive at closing.
- The prepayment penalty is a fixed amount, charged only when extra payments repay the loan before its final scheduled month.
- The effective APR comes from the cash flows — net proceeds today against the payments — so fees push it above the quoted rate.
- Rates are fixed; taxes, insurance, dealer add-ons and balloon payments are out of scope.
About this tool
This calculator compares up to five personal or auto loans on monthly payment, total interest, effective APR and up-front cash, plots total cost against term length, and finds the month where one loan's cumulative outlay overtakes the other. Everything runs entirely in your browser — no numbers are sent anywhere. The effective APR is solved from the cash flows, matching the net amount you actually receive against the payment stream including fees.
- 100% free — no account needed
- Runs in your browser
- Nothing is uploaded
Frequently asked questions
Is Loan Comparison Calculator really free?
Yes. Loan Comparison Calculator is completely free on PureBrowser — every feature, with no account, no trial, and no credit card.
Does Loan Comparison Calculator upload my data?
No. Loan Comparison Calculator runs entirely inside your browser, so anything you type, paste, or open stays on your own device.
Do I need to sign up or install anything?
Neither. There is no account and nothing to download — open the page and Loan Comparison Calculator is ready to use on desktop or mobile.
Does Loan Comparison Calculator work offline?
Once the page has loaded, yes. All of the processing happens locally in your browser, so it keeps working without a connection.
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