Loan Payment Calculator — Monthly Payment & Amortization
Calculate your exact monthly loan payment for any loan type. See total interest paid and full amortization schedule with charts.
Monthly Payment
$501
Total Paid
$30,057
Total Interest
$5,057
Interest %
16.8%
Loan Term
60 months
Principal vs Interest
$25,000
83.2%
$5,057
16.8%
Amortization
Analysis & insights
Your monthly payment is $0. Over 5 years you'll pay back $30,057 total — $25,000 in principal + $5,057 in interest. Your 7.5% rate is excellent — below current market averages. Always confirm "no prepayment penalty" in writing. Extra principal payments compound your savings dramatically over the loan life.
Standard rate
7.5% is in the normal range for prime borrowers on personal loans.
Risk & benchmark gauge
Current band
Excellent
7.5% APR
Industry benchmarks
- Monthly payment$0
- Total interest paid$5,057
- Interest-to-principal20.2%
- Total cost of loan$30,057
- Current personal-loan avg~12-15% APR
- Excellent-credit personal-loan~7-9% APR
Key insights
Origination fees inflate true APR
A "10% rate" with a 5% origination fee has an effective APR of ~12.5%. Always compare APR (which includes fees), not just the headline rate.
No prepayment penalty?
Most personal loans now have no prepayment penalty. Confirm in writing before signing. If no penalty, extra principal payments compound your savings significantly.
Recommended actions(4)
Shop at least 3 lenders before signing
High priorityHard credit pulls within a 14-day window count as ONE inquiry for credit scoring. Check SoFi, LightStream, Upstart, your credit union, and a national bank.
Impact: A 2% rate reduction on a typical $20K loan saves $1,000+ over the loan life.
Confirm "no prepayment penalty" in writing
High priorityIf your rate is high, you want the option to pay it off early when cash allows. Read the loan disclosure — don't take a verbal promise.
Round up your monthly payment
Medium priorityBump $0 up to $0/month. The extra principal cuts interest paid and shortens the loan.
Impact: Even $30/month extra on a $20K loan often saves 6-12 months and $500-1000 in interest.
Find the Best Personal Loan
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Related Calculators
This tool is for educational purposes only and does not constitute financial, tax, or investment advice. Consult a qualified financial professional for advice specific to your situation.
What is a Loan Payment?
Almost every consumer loan — car, personal, student, mortgage — is an amortising loan, which means one fixed payment covers both interest and principal, and the split between them changes every month. Understanding that split is what separates borrowers who know what a loan costs from those who only know what it costs per month.
Lenders quote monthly payments because a monthly payment is easy to compare against a paycheque. It is also the number most easily manipulated: extend the term and any payment can be made to look affordable, while the total cost quietly rises. The payment tells you whether you can carry the loan. It tells you almost nothing about whether the loan is good.
This page explains how the payment is derived, why early payments are mostly interest, what APR captures that the interest rate does not, and how to compare offers on the terms that actually matter.
The formula — how to calculate a Loan Payment
- M
- = fixed monthly payment
- P
- = principal — the amount borrowed after any down payment or trade-in
- r
- = monthly interest rate, the annual rate divided by 12
- n
- = total number of monthly payments
This solves for the constant payment that exactly retires the balance in n periods. It assumes simple-interest amortisation, which is how nearly all modern consumer loans work. Older "precomputed interest" loans behave differently and penalise early payoff.
Step-by-step example
- 01Borrow $25,000 over 5 years at 7.5% APR.
- 02Monthly rate: r = 0.075 ÷ 12 = 0.00625. Periods: n = 5 × 12 = 60.
- 03Compute the growth factor: (1.00625)⁶⁰ ≈ 1.4527.
- 04M = 25,000 × [0.00625 × 1.4527] ÷ [1.4527 − 1] = 25,000 × 0.009079 ÷ 0.4527 ≈ $501.
- 05Total paid over 60 months: $501 × 60 = $30,060.
- 06Total interest: $30,060 − $25,000 = $5,060.
- 07Now stretch the same loan to 7 years: the payment falls to about $383 — a $118 saving each month — but total interest rises to roughly $7,170.
- 08The longer term costs an extra $2,110 to reduce the monthly payment. That is the trade in its clearest form: you are buying cash flow with interest.
Why early payments are mostly interest
Interest is charged on the outstanding balance, and the balance is at its highest at the start. On the $25,000 example, the first payment splits roughly $156 to interest and $345 to principal. By the final payment, almost the entire $501 reduces principal.
This front-loading is not a fee or a trick — it falls directly out of charging interest on what you still owe. But it has a practical consequence people underestimate: paying a loan off early saves less than the remaining payments suggest, because much of the interest on a nearly-finished loan has already been paid.
It also means extra principal payments are dramatically more valuable early. A dollar of extra principal in month one removes that dollar from every subsequent interest calculation for the whole term.
Specify that extra payments go to principal
Many servicers apply anything above the scheduled amount to the next month's payment rather than to principal, which advances your due date without reducing interest. Tell the servicer in writing that additional amounts are principal-only, and check the next statement to confirm the balance actually fell.
Interest rate versus APR — and why the gap matters
The interest rate determines your payment. The APR expresses the total cost of borrowing as an annualised rate, folding in origination fees, points and certain other charges required by Truth in Lending disclosure rules.
When a loan has no fees, the two are identical. When it has fees, APR is higher, and the gap tells you how much the fees are worth. A 6.9% rate with a 5% origination fee is a considerably more expensive loan than a 7.4% rate with none, even though the headline looks better.
This is why comparing APRs across offers is meaningful while comparing rates alone can mislead. Personal loans in particular often carry origination fees of 1–8%, frequently deducted from the amount disbursed — so a $25,000 loan with a 5% fee puts $23,750 in your account while charging interest on the full $25,000.
Two offers on $25,000 over 5 years
| Offer A | Offer B | |
|---|---|---|
| Stated interest rate | 6.9% | 7.4% |
| Origination fee | 5% ($1,250) | None |
| Cash actually received | $23,750 | $25,000 |
| Monthly payment | ≈ $494 | ≈ $499 |
| Effective APR | Materially above 6.9% | 7.4% |
| Better offer | — | Usually B, despite the higher rate |
Illustrative. Always compare the APR and the amount actually disbursed, not the advertised rate.
What the term length really costs
Lengthening the term lowers the payment and raises the total. The relationship is not linear: the first extension buys a lot of payment relief, later ones buy less while adding proportionally more interest.
$25,000 at 7.5%, by term
| Term | Monthly payment | Total interest | Total paid |
|---|---|---|---|
| 3 years | ≈ $778 | ≈ $3,000 | ≈ $28,000 |
| 4 years | ≈ $605 | ≈ $4,030 | ≈ $29,030 |
| 5 years | ≈ $501 | ≈ $5,060 | ≈ $30,060 |
| 6 years | ≈ $432 | ≈ $6,110 | ≈ $31,110 |
| 7 years | ≈ $383 | ≈ $7,170 | ≈ $32,170 |
Each extra year of term adds roughly $1,000 of interest on this loan while saving progressively less per month.
Beware negotiating on the monthly payment
If you tell a lender or dealer the payment you want, they can almost always reach it by extending the term — leaving the price, rate and total cost untouched or worse. Negotiate the price and the APR first, and treat the payment as an output rather than a target.
Secured versus unsecured, and what it costs
A secured loan is backed by collateral the lender can take if you default — a car, a home, a deposit account. An unsecured loan is backed only by your promise to repay.
Because collateral reduces the lender's risk, secured loans carry materially lower rates. That saving is not free: default converts into repossession or foreclosure rather than a collections process, so the borrower absorbs a risk they might not have priced.
The judgement is about consequence, not rate. Securing a holiday against your home to save two percentage points is rarely a sound trade. Securing a car loan against the car is uncontroversial, because the asset and the debt are the same thing.
- Secured loan —
- lower rate, longer terms available, but default can cost you the asset.
- Unsecured loan —
- higher rate, usually shorter terms, and default damages credit rather than taking property.
- Origination fee —
- charged up front, often deducted from the disbursed amount. Included in APR but not in the stated rate.
- Prepayment penalty —
- a charge for early payoff. Rare on modern consumer loans but worth confirming before planning extra payments.
- Precomputed interest —
- total interest is fixed at origination, so paying early saves little. Uncommon now, but still appears in some subprime lending.
What actually determines the rate you are offered
Credit score dominates. The spread between excellent and fair credit on the same loan is frequently several percentage points, which on a five-year $25,000 loan is thousands of dollars.
Term length matters too, and often in the opposite direction to intuition: many lenders price longer terms at higher rates, because the risk of a borrower's circumstances changing grows with time. So a longer term can raise both the rate and the total interest.
Debt-to-income ratio, employment stability and the loan purpose all feed in. And rate shopping is worth doing — credit scoring models generally treat multiple enquiries for the same loan type within a short window as a single event, so comparing several lenders in a couple of weeks does not compound the impact on your score.
Key considerations
- Compare APR, not the advertised interest rate, and confirm the amount actually disbursed after fees.
- Get quotes from several lenders within a short window so the credit enquiries are treated as one shopping event.
- Choose the shortest term whose payment you can comfortably carry, then pay extra when you can.
- Confirm in writing that extra payments are applied to principal, and verify on the next statement.
- Check for prepayment penalties before planning early payoff.
- A credit union or your existing bank will often beat point-of-sale financing — get a pre-approval before you shop.
- Model the payment against take-home pay, not gross, and leave room for the rest of your budget.
Common mistakes to avoid
- Shopping on the monthly payment, which lets a longer term disguise a worse deal.
- Comparing stated rates while ignoring origination fees, which APR would have exposed.
- Taking the longest available term because the payment fits, without seeing the total interest.
- Assuming extra payments automatically reduce principal — many servicers apply them to the next due date instead.
- Accepting dealer or point-of-sale financing without a competing pre-approval to price it against.
- Overlooking that fees are often deducted from the disbursement, so you receive less than you borrow.
- Rolling an existing balance into a new, longer loan and treating the lower payment as a saving.
Frequently asked questions
Sources & references
Written and fact-checked by the CalcProLabs Editorial Team against CFPB Truth in Lending disclosure rules. Read our calculation methodology and editorial policy.
Last updated