Reading a personal-loan offer like an underwriter
Compare offers on three numbers: APR (includes origination fees — the only fair comparison), term (longer = lower payment, more interest; the calculator quantifies the trade), and prepayment terms (should be penalty-free). A fourth check if you're consolidating: the loan only helps if its APR beats your blended card rate — verify with the consolidation calculator, and keep the cards at zero afterward, or you'll carry both debts.
How this calculator works
A personal loan is plain amortization — fixed payment, fixed term:
Monthly payment
M = P · r(1 + r)ⁿ ÷ ((1 + r)ⁿ − 1)
Total interest
total interest = M × n − P
- P — amount borrowed (principal)
- r — monthly interest rate — annual rate ÷ 12, as a decimal
- n — number of monthly payments (years × 12)
- M — the fixed monthly payment
One caution the formula can’t see: origination fees are often deducted from your proceeds, so the effective APR runs above the note rate. Compare offers on APR — then enter the note rate here for the payment.
Worked example
A $15,000 personal loan at 11% APR over 48 months.
| Monthly payment | $387.68 |
|---|---|
| Total interest | $3,609 |
| Total repaid | $18,609 |
Fixed payment, fixed term: $387.68 a month clears the loan in four years at a total interest cost of $3,609. One number the payment hides — origination fees, often deducted from your proceeds, push the effective APR above the note rate. Always compare offers on APR, then enter the note rate here for the payment. A personal loan can be a smart consolidation tool when its APR undercuts your card rates.
Frequently asked questions
What is the monthly payment on a $10,000 personal loan?
At 11% APR: about $327/month for 36 months ($1,776 total interest) or $217/month for 60 months ($3,045 interest). The calculator shows any combination instantly — and how much a longer term really costs.
What APR should I expect on a personal loan?
Roughly 7–12% for excellent credit, 12–20% for good, and 20–36% below that (many lenders cap at 35.99%). Personal loans are unsecured, so rates run above car loans or mortgages but well below credit cards for most borrowers.
Do personal loans have origination fees?
Often 1–8%, deducted from the amount you receive. If you need $10,000 in hand with a 5% fee, borrow ~$10,527. The APR (not the interest rate) reflects the fee — compare offers by APR.
Can I pay a personal loan off early?
Almost always without penalty — check the note. Add an extra monthly amount above to see the time and interest saved; the mechanics match any amortizing loan.
Is a personal loan good for consolidating credit cards?
When the loan APR is meaningfully below your blended card APR, yes — it converts compounding card debt into a fixed schedule. Our debt consolidation calculator compares your actual cards against a specific offer, fee included.
Does a personal loan hurt my credit?
A hard inquiry and a new account trim a few points briefly; on-time payments and lower card utilization usually help within months. The risk isn’t the loan — it’s re-running the cards up after consolidating.
Related calculators
- Loan Payoff Calculator — See how extra payments shorten your loan and how much interest you save.
- Debt Consolidation Calculator — Your debts vs. a real loan offer at the same monthly budget — fees counted, longer-term tricks exposed.
- Credit Card Payoff Calculator — How long your payment takes — or the payment that hits your target date — with a +$50/+$100 ladder.
- Debt Snowball Calculator — Compare the snowball and avalanche payoff methods side by side across all your debts.
Disclaimer: Educational purposes only — not financial advice or a loan offer. See our Terms of Use.