How do I calculate a personal loan payment?

The monthly payment formula for a fixed-rate personal loan is: M = P × [r(1+r)^n] / [(1+r)^n – 1], where P = principal (loan amount), r = monthly interest rate (annual rate ÷ 12), n = number of payments (loan term in months). Example: $10,000 loan at 12% APR (1% monthly) for 36 months: M = 10,000 × [0.01 × (1.01)^36] / [(1.01)^36 – 1] = $332/month. Total paid = $332 × 36 = $11,952. Total interest paid = $1,952.

What is a good interest rate for a personal loan in 2026?

Personal loan interest rates in 2026 range from 7% to 36% APR depending on credit score and lender. A good rate in 2026 for prime borrowers (credit 720+) is 8–12% APR. Near-prime borrowers (660–719) typically receive 13–20% APR. Subprime borrowers (580–659) receive 20–30% APR. Credit union personal loans often beat bank and online lender rates by 2–5 percentage points for the same borrower. Always compare at least 3 lenders — rates vary significantly for the same credit profile.

How much does a personal loan really cost?

Personal loan total cost = monthly payment × number of payments. At $10,000 principal: 36 months at 10% APR = $323/month; total cost = $11,628; interest = $1,628. 36 months at 20% APR = $372/month; total cost = $13,392; interest = $3,392. 60 months at 10% APR = $212/month; total cost = $12,748; interest = $2,748. A longer term lowers monthly payments but increases total interest paid. A higher rate dramatically increases total cost — 20% vs 10% APR doubles the interest paid on the same $10,000 loan.

Should I use a personal loan or credit card for a large purchase?

A personal loan is generally better than a credit card for purchases over $3,000–$5,000 that will take more than 2–3 months to pay off. Personal loans have fixed rates (typically 8–25% APR) and fixed payoff dates. Credit cards have variable rates and can sit as revolving debt indefinitely. A 0% intro APR credit card is the best option if you can pay the balance before the promotional period ends (typically 12–21 months). For amounts you cannot pay off in the intro period, a personal loan at 12–15% is cheaper than a credit card's ongoing 22–29% rate.

What fees do personal loans charge?

Common personal loan fees in 2026: Origination fee — 1–8% of the loan amount, deducted upfront (a $10,000 loan with a 5% fee gives you $9,500 but you repay $10,000 + interest). Prepayment penalty — some lenders charge 1–5% of remaining balance if you pay off early. Late payment fee — $25–$50 or 5% of payment (whichever is greater). The APR includes origination fees — always compare APR, not just the interest rate, to see the true cost. LightStream charges no fees; SoFi charges no fees; many online lenders waive origination fees for prime borrowers.

Personal Loan Calculator Guide 2026 — How to Calculate Payments and Total Cost

A $10,000 personal loan at 12% APR for 36 months costs $332 per month and $1,952 in total interest. At 20% APR, the same loan costs $372/month and $3,392 in interest — nearly double. Understanding how personal loan payments are calculated before you borrow can save you thousands.

Personal Loan Payment Examples (2026)

$5,000 Loan

APR	24 months	36 months	48 months
8%	$226/mo ($432 interest)	$157/mo ($652 interest)	$122/mo ($856 interest)
12%	$235/mo ($640 interest)	$166/mo ($976 interest)	$131/mo ($1,312 interest)
20%	$254/mo ($1,104 interest)	$186/mo ($1,696 interest)	$152/mo ($2,296 interest)

$10,000 Loan

APR	24 months	36 months	60 months
8%	$452/mo ($864 interest)	$313/mo ($1,304 interest)	$203/mo ($2,166 interest)
12%	$470/mo ($1,280 interest)	$332/mo ($1,952 interest)	$222/mo ($3,340 interest)
20%	$509/mo ($2,208 interest)	$372/mo ($3,392 interest)	$265/mo ($5,877 interest)

$25,000 Loan

APR	36 months	48 months	60 months
8%	$783/mo ($3,260 interest)	$610/mo ($4,296 interest)	$507/mo ($5,415 interest)
12%	$830/mo ($4,880 interest)	$658/mo ($6,560 interest)	$556/mo ($8,350 interest)
20%	$929/mo ($8,480 interest)	$758/mo ($11,400 interest)	$663/mo ($14,692 interest)

The Loan Payment Formula

$$M = P \times \frac{r(1+r)^n}{(1+r)^n - 1}$$

Where:

$M$ = monthly payment
$P$ = principal (loan amount)
$r$ = monthly interest rate = annual rate ÷ 12
$n$ = total number of payments (months)

Example: $15,000 at 10% APR for 48 months:

$r$ = 10% ÷ 12 = 0.00833
$n$ = 48
$M$ = $15,000 × [0.00833 × (1.00833)^48] ÷ [(1.00833)^48 – 1]
$M$ = $380/month
Total paid = $380 × 48 = $18,240
Total interest = $3,240

Personal Loan Rates by Credit Score (2026)

Credit Score	Typical APR Range	Best Lenders
760+ (Excellent)	7–10%	LightStream, credit unions
720–759 (Very Good)	10–14%	SoFi, LightStream, PenFed
660–719 (Good)	14–20%	Upstart, Discover, Marcus
620–659 (Fair)	20–28%	Upstart, LendingClub
Below 620	25–36%	Limited options; OppFi, Avant

Origination fee warning: Some lenders charge 3–8% origination fees. On a $10,000 loan with a 5% origination fee, you receive $9,500 but repay $10,000 + interest. The APR includes this fee — always compare APR, not rate.

Personal Loan vs. Other Borrowing Options

Option	APR Range	Fixed Payment?	Best For
Personal loan	8–36%	Yes	Large purchases, debt consolidation
0% APR credit card	0% for 12–21 mo	No (minimum only)	Purchases payable within promo period
HELOC	7–9%	No (variable)	Homeowners; large amounts
401(k) loan	Prime + 1%	Yes	Last resort; hurts retirement
Credit card (ongoing)	22–29%	No	Only for amounts paid monthly

A personal loan at 12–15% APR beats a credit card at 25%+ APR for debts that take 12+ months to repay.

How to Get the Lowest Personal Loan Rate

Improve your credit score first — each 20-point increase in score can shift you to a lower rate tier
Rate shop with 3+ lenders — check credit union, bank, and online lender
Choose the shortest term you can afford — lower rates often accompany shorter terms
Avoid origination fees — LightStream, SoFi, Marcus charge no origination fees
Consider a secured personal loan — using savings as collateral reduces the lender’s risk and lowers your rate

Internal Links

Klarna Review — BNPL vs. personal loan for smaller purchases
How to Get a Free Credit Score — before applying
Car Loan Pre-Approval — auto loan comparison
Car Repossession Guide — what happens when payments stop

Written by WealthVieu

WealthVieu researches and writes data-driven personal finance guides using primary sources including the IRS, Bureau of Labor Statistics, Federal Reserve, and Census Bureau.

The content on Wealthvieu is for informational purposes only and should not be considered financial, tax, or investment advice. Consult a qualified professional before making financial decisions. Full disclaimer · Editorial policy