Skip to main content
Share:

Personal Loan Calculator

Free personal loan calculator: monthly payment, total interest and 36 vs 48 vs 60 month comparisons, plus typical 2026 APR ranges by credit band. No sign-up.

Last reviewed: January 2026 · Tax data verified against IRS Publication 15-T & state revenue departments

Related Tools & Resources

How This Calculator Works

A personal loan is unsecured: no collateral, no house or car for the bank to repossess. The lender is pricing pure credit risk, so the APR you are offered is a direct read of your credit profile. That is why the same $15,000 loan can cost anywhere from single digits to 30%+ APR. This calculator takes your amount, APR and term and returns the level monthly payment, total interest and total repaid — everything updates live.

The payment uses the standard annuity M = P x [r(1+r)^n] / [(1+r)^n - 1]. On the default $15,000 at 12% APR for 48 months, that is $395.01 per month, $3,960.36 of total interest and $18,960.36 total repaid. Notice the first payment sends $150.00 to interest — 38% of the payment — because the balance (and therefore the interest) starts at its maximum.

Term choice is where personal loans are won or lost. Comparing the same $15,000 at 12%: 36 months costs $498.21 per month and $2,935.73 in interest; 48 months costs $395.01 and $3,960.36; 60 months costs $333.67 and $5,020.00. Dropping from 48 to 36 months raises the payment $103.21 but saves $1,024.63; stretching to 60 saves $61.34 per month but adds $1,059.64. The comparison cards below run this exact math on whatever you type.

Fees distort the sticker rate. A typical origination fee of 1% - 10% comes off the top: 5% on $15,000 is $750, so you receive $14,250 but repay interest on the full $15,000. When comparing offers, judge them by APR (which folds the fee in) and by total repaid — never by the monthly payment alone. Long terms at high APRs are the classic trap: the payment looks harmless while the interest quietly compounds toward a third of what you borrowed.

Used well, a personal loan is a refinancing tool: consolidating $15,000 of typical 20%+ credit-card debt into a 12% APR, 48-month loan cuts the interest bill from $6,909.86 to $3,960.36 — a $2,949.50 saving — and gives you a fixed end date. Check the savings on your own numbers above, then compare structured payoff scenarios with the loan calculator and amortization calculator.

How It's Calculated

Formula

M = P x [r(1+r)^n] / [(1+r)^n - 1] (r = APR / 12, n = term months)

Step-by-Step

  1. 1Enter the loan amount P as the figure you will actually repay interest on (after any origination fee, lenders fund less but charge on the full principal).
  2. 2Convert APR to the monthly rate r = APR / 12 (12% APR gives r = 0.01).
  3. 3Set n to the term in months (48 for a four-year loan).
  4. 4Compute the level payment M = P x [r(1+r)^n] / [(1+r)^n - 1]; if APR is 0%, M = P / n.
  5. 5Multiply M by n for total repaid; subtract P for total interest.
  6. 6Compare terms by re-running the formula at 36, 48 and 60 months — the cards below do this automatically.

Example

$15,000 personal loan at 12% APR for 48 months: r = 0.01, n = 48, so M = $395.01 per month. Total repaid is $18,960.36, of which $3,960.36 is interest. Choosing 36 months instead raises the payment to $498.21 but cuts interest to $2,935.73 — $1,024.63 less for 12 fewer months of payments.

For detailed data sources and full methodology, see our Methodology & Data Sources page.

Key Rates & Data for 2026

Excellent credit (720+), typical 2026

~8% - 12%

Good credit (690-719), typical 2026

~13% - 18%

Fair credit (630-689), typical 2026

~19% - 25%

Poor credit (below 630), typical 2026

~26% - 36%

Payment per $1,000 @ 12% / 48 mo

$26.33

Typical origination fee

1% - 10% of the loan

Frequently Asked Questions

What would a $15,000 personal loan cost per month?

It depends almost entirely on APR and term. At 12% APR — roughly a good-credit rate — a $15,000 loan runs $706.10 per month over 24 months ($1,946.45 interest), $498.21 over 36 months ($2,935.73), $395.01 over 48 months ($3,960.36) and $333.67 over 60 months ($5,020.00). Total repaid at 48 months is $18,960.36. If your credit lands you 10% instead of 12%, the 48-month payment drops to $380.44 and interest to $3,261.06; at 20% it jumps to $456.46 and $6,909.86. A useful benchmark: every $1,000 at 12% for four years costs $26.33 per month.

What credit score gets the best personal loan rates?

Lenders generally reserve their best pricing for scores above 720: typical 2026 personal-loan APRs run about 8% - 12% in that tier, 13% - 18% for good credit (690-719), 19% - 25% for fair credit (630-689) and 26% - 36% below that. These are typical ranges, not guarantees — your offer also depends on income, debt-to-income ratio, employment history and the lender. Two practical moves: check whether your bank or credit union offers relationship pricing, and pre-qualify with several lenders within a short window; soft-pull pre-qualifications let you compare real APRs without dinging your score. Then enter the winning offer above to see the true monthly cost.

Is a 60-month personal loan ever a good idea?

Rarely, and only for cash-flow reasons with an exit plan. On $15,000 at 12% APR, going from 48 to 60 months lowers the payment by $61.34 but adds $1,059.64 in interest — you are paying 27% more interest to lower the payment 16%. The real risk shows up at high APRs: at 30%+, a 60-month term can push lifetime interest above a third of the amount borrowed. If 60 months is the only payment you can manage, take it, but set a reminder to throw raises, refunds and bonuses at the principal — an extra $50 per month on the default loan finishes it 6 months early and saves $574.74.

Personal loan or credit card: which is cheaper for $15,000?

For a one-time balance, the personal loan almost always wins at the same credit tier. A 48-month, $15,000 personal loan at a typical good-credit 12% APR costs $3,960.36 in interest; carrying $15,000 on a card at a typical 20%+ APR while paying it down on the same 48-month schedule would cost roughly $6,909.86 — about $2,949.50 more, and card rates are variable, so they can rise. The loan also converts a revolving trap into a fixed payment with a guaranteed end date. Cards win only for amounts you can clear within an intro-0% window. Run your actual card rate through the calculator to see the exact gap.

What is an origination fee on a personal loan?

It is an upfront charge, typically 1% - 10% of the loan, deducted from the funds you receive. A 5% fee on a $15,000 loan is $750: you get $14,250 deposited but repay interest on the full $15,000. On our default 12%/48-month example, that effectively raises the cost of the money you actually received by several percentage points — which is why comparing APRs matters more than comparing note rates, since APR folds the fee into a single yearly figure. Credit unions and some banks offer no-fee personal loans; a slightly higher rate with no fee can still be the cheaper deal. Always compare total repaid, which this calculator shows instantly.

Can I pay off a personal loan early?

Usually yes, and it is often smart. Extra payments retire principal, which shrinks every future interest charge: adding $50 per month to the default $15,000 loan at 12% for 48 months finishes it in 42 months and saves $574.74. Check two things first: that your note has no prepayment penalty (most mainstream lenders do not), and that extra amounts are applied to principal rather than treated as an early next installment. One caveat — if draining cash to prepay leaves you without an emergency fund, you are trading a 12%-ish certainty for a credit-card-rate possibility. Keep a cushion, then prepay with what is left.

Why are personal loan rates higher than mortgage rates?

Collateral. A mortgage is backed by a house the lender can foreclose; an auto loan by a car it can repossess. A personal loan is backed only by your promise, so lenders price in higher default losses and higher collection costs — typical 2026 30-year mortgage rates run around 6% - 7% while personal-loan APRs start near 8% even for excellent credit and climb into the 30s for bruised files. The flip side: personal loans close in days with no appraisal or title work, and there is no asset at risk if life goes sideways. Model both side by side with our <a href="/mortgage-calculator">mortgage calculator</a>.

Related Calculators

Link to This Calculator

Help others find this free tool — add a link to your website or blog.

<a href="https://thetaxcalc.com/personal-loan-calculator" title="Personal Loan Calculator 2026 — Payment, Interest & APR Bands">Personal Loan Calculator 2026 — Payment, Interest & APR Bands</a>

Next Steps

Explore More Tools