Calculate the Annual Percentage Rate (APR) on loans, mortgages, and credit cards. Understand the true cost of borrowing.
Calculate monthly payments and total interest for any loan.
The Loan Calculator is your comprehensive tool for understanding the true cost of borrowing money. Whether you're considering a personal loan for debt consolidation, financing a major purchase, covering emergency expenses, or funding home improvements, this calculator reveals exactly what you'll pay each month and the total interest cost over the life of your loan.
Personal loans are one of the most versatile financial products available—they can be used for almost any purpose, from medical bills to wedding expenses to vacation funding. Unlike credit cards with variable rates that can exceed 20-29%, personal loans offer fixed interest rates and predictable monthly payments, making budgeting straightforward. The key to smart borrowing is understanding your true costs before you sign, and that's exactly what this calculator helps you do.
M = Monthly Payment (what you pay each month)
P = Principal (the total loan amount borrowed)
r = Monthly interest rate (annual APR ÷ 12 ÷ 100)
n = Total number of payments (loan term in years × 12)
This amortization formula ensures each payment covers that month's interest charge plus a portion of the principal. Early payments are mostly interest; later payments are mostly principal—this is why paying extra early in your loan saves the most money.
See how loan term affects your monthly payment and total cost (based on a $25,000 loan at 10% APR):
| Loan Term | Monthly Payment | Total Interest | Total Cost | Best For |
|---|---|---|---|---|
| 2 Years | $1,152 | $2,651 | $27,651 | Lowest total cost, higher income |
| 3 Years | $807 | $4,042 | $29,042 | Balance of payment & cost |
| 5 Years | $531 | $6,873 | $31,873 | Most common choice |
| 7 Years | $415 | $9,836 | $34,836 | Lowest payment, tight budget |
Key insight: A 7-year term has 22% lower monthly payments than 5-year, but costs $2,963 more in total interest.
Understanding the difference helps you choose the right loan type for your situation:
| Feature | Secured Loans | Unsecured Loans |
|---|---|---|
| Collateral Required | Yes (car, home, savings) | No collateral needed |
| Interest Rates | Lower (3-12% typical) | Higher (6-36% typical) |
| Approval Difficulty | Easier (collateral reduces risk) | Harder (credit score dependent) |
| Loan Amounts | Higher (up to collateral value) | Lower ($1,000-$100,000) |
| Risk to Borrower | Can lose asset if default | No asset at risk |
| Examples | Auto loans, home equity loans, secured personal loans | Personal loans, credit cards, student loans |
When to choose secured: You have valuable assets, want the lowest rate, and are confident in your ability to repay. When to choose unsecured: You don't want to risk assets, need quick approval, or don't have collateral to offer.
Mistake: Choosing the longest term for the lowest payment. Why it hurts: A 7-year loan vs 3-year on $20,000 costs $5,000+ more in interest. Fix: Choose the shortest term you can comfortably afford.
Mistake: Ignoring origination fees when comparing loans. Why it hurts: A 1-5% origination fee on a $25,000 loan is $250-1,250 upfront. Fix: Compare total loan cost (principal + interest + all fees), not just interest rates.
Mistake: Not shopping multiple lenders. Why it hurts: Rates vary by 5-10% between lenders for the same borrower. Fix: Get quotes from at least 3-5 lenders (banks, credit unions, online lenders). Multiple inquiries within 14-45 days count as one credit check.
Mistake: Borrowing more than needed because you're approved for more. Why it hurts: Every extra $1,000 borrowed costs $200+ in interest over 5 years at 10% APR. Fix: Calculate exactly what you need and stick to that amount.
Mistake: Not checking for prepayment penalties. Why it hurts: Some lenders charge fees for paying off early, negating savings from extra payments. Fix: Ask about prepayment terms before signing—most reputable lenders have no penalties.
| Credit Score | Typical APR Range | Approval Odds | Best Lender Type |
|---|---|---|---|
| 720+ (Excellent) | 6-10% | Very High | Banks, Credit Unions |
| 680-719 (Good) | 10-15% | High | Online Lenders, Credit Unions |
| 640-679 (Fair) | 15-23% | Moderate | Online Lenders |
| Below 640 (Poor) | 23-36% | Lower | Secured Loans, Co-signer |
Related tools: Loan Calculator to plan your repayment strategy, Auto Loan Calculator for vehicle financing, and Mortgage Calculator for home purchases.
Sources & Methodology: Loan payment calculations use the standard amortization formula recognized by financial institutions worldwide. Interest rate benchmarks are based on data from the Federal Reserve, Bankrate, and major lender surveys. Credit score ranges follow the FICO scoring model used by 90% of top lenders. Always compare actual loan offers from multiple lenders, as individual rates depend on your specific credit profile, income, and debt-to-income ratio. This calculator provides estimates for educational purposes—consult with a financial advisor for personalized borrowing advice. Calculator updated January 2026.
Monthly loan payments are calculated using the amortization formula: M = P × [r(1+r)^n] / [(1+r)^n-1], where P is the principal (amount borrowed), r is the monthly interest rate (annual APR ÷ 12), and n is the total number of payments (loan term in months). The four key factors affecting your payment are: 1) Loan amount—every $1,000 borrowed adds roughly $20-30/month on a 5-year loan at 10% APR; 2) Interest rate—a 2% rate difference on a $25,000 loan changes your payment by about $25/month; 3) Loan term—longer terms lower monthly payments but increase total interest paid significantly; 4) Your credit score—directly determines the rate you qualify for.
The interest rate is the base cost of borrowing money expressed as a percentage, while APR (Annual Percentage Rate) includes the interest rate PLUS all fees and costs associated with the loan—origination fees, closing costs, points, and other lender charges—expressed as a yearly rate. APR gives you the true cost of borrowing. Example: A loan with 8% interest rate and $500 in fees might have a 9.2% APR. When comparing loan offers, always compare APRs, not just interest rates. Federal law (Truth in Lending Act) requires lenders to disclose APR, making it the best apples-to-apples comparison tool for evaluating loan offers from different lenders.
Lenders typically approve loans where your total monthly debt payments (including the new loan) don't exceed 36-43% of your gross monthly income—this is your debt-to-income (DTI) ratio. To calculate how much you can afford: 1) Multiply your gross monthly income by 0.36; 2) Subtract existing monthly debt payments (credit cards, car loans, student loans); 3) The remaining amount is your maximum new loan payment. For example, with $5,000/month income and $500 in existing debts, you can afford up to $1,300/month for a new loan ($5,000 × 0.36 = $1,800 - $500 = $1,300). This translates to roughly a $60,000 loan at 10% APR for 5 years.