Personal Loan Calculator
Calculate monthly payments, total interest, and payoff date for personal loans. View a full amortization schedule. See also Loan Calculator and Compound Interest Calculator.
How to Calculate Personal Loan Payments
Personal loan payments are calculated using the standard amortization formula. Enter the loan amount, annual interest rate, and loan term. The calculator determines a fixed monthly payment that covers both principal and interest. Each payment reduces the outstanding balance, with early payments going mostly toward interest and later payments mostly toward principal. Personal loans typically range from 12 to 84 months with fixed interest rates.
Personal Loan Payment Formula
EMI = P × r × (1 + r)^n / ((1 + r)^n − 1)
Where:
P = Loan amount (principal)
r = Monthly interest rate (annual rate / 12 / 100)
n = Total number of monthly payments
Example
Loan: $15,000 at 8% for 36 months
r = 8 / 12 / 100 = 0.006667
n = 36 months
Monthly Payment = $470.05
Total Paid = $470.05 × 36 = $16,921.80
Total Interest = $16,921.80 − $15,000 = $1,921.80
Payoff Date: 36 months from start
Personal Loan Comparison Table
| Amount | Rate | Term | Monthly | Total Interest |
|---|---|---|---|---|
| $5,000 | 7% | 24 mo | $224.22 | $381.28 |
| $10,000 | 8% | 36 mo | $313.36 | $1,281.08 |
| $15,000 | 8% | 36 mo | $470.05 | $1,921.80 |
| $20,000 | 10% | 48 mo | $507.25 | $4,348.00 |
| $25,000 | 9% | 60 mo | $518.96 | $6,137.60 |
| $30,000 | 12% | 60 mo | $667.33 | $10,039.80 |
Frequently Asked Questions
What is a good interest rate for a personal loan?
Personal loan rates typically range from 6% to 36% depending on credit score. Excellent credit (750+) can qualify for rates under 8%. Good credit (670-749) typically sees rates of 8-15%. Fair credit may see rates of 15-25%.
How does loan term affect total cost?
A longer term means lower monthly payments but more total interest. For a $15,000 loan at 8%: a 36-month term costs $1,922 in interest, while a 60-month term costs $3,250 — nearly 70% more interest for the same loan amount.
Can I pay off a personal loan early?
Most personal loans allow early payoff without penalties, but check your loan agreement. Some lenders charge prepayment penalties. Paying extra toward principal each month reduces total interest and shortens the loan term.
Solved Examples
Example 1: Debt consolidation personal loan
Solution:
Credit card debt: $8,000 at 22% + $5,000 at 19% = $13,000 total
Personal loan consolidation: $13,000 at 9.5% for 4 years
Monthly rate = 9.5% / 12 = 0.7917%
EMI = $327.17
Total interest on personal loan = $2,704
Credit card minimum payments would cost $8,000+ in interest over same period
Answer: Consolidating saves ~$5,300 in interest ($2,704 vs $8,000+) and provides one fixed payment.
Example 2: Home improvement loan
Solution:
Kitchen renovation cost = $20,000, Personal loan at 8.5% for 5 years
Monthly payment = $410.32
Total interest = $4,619
Total cost of renovation = $20,000 + $4,619 = $24,619
Answer: Monthly payment = $410 for 5 years. The renovation costs $4,619 in financing charges.
Example 3: Comparing personal loan offers
Solution:
Loan amount = $15,000
Offer A: 7.99% APR, 3 years, 2% origination fee
Offer B: 9.49% APR, 3 years, no fees
Offer A: EMI = $469.56, Total interest = $1,904, Fee = $300 → Total cost = $2,204
Offer B: EMI = $479.74, Total interest = $2,271 → Total cost = $2,271
Answer: Offer A saves $67 overall despite the origination fee. Always compare total cost.
Practice Questions
Try these on your own:
- $10,000 personal loan at 11% for 3 years. Monthly payment? (Answer: $327.39)
- You can pay $500/month. At 8% for how many months can you borrow $20,000? (Answer: ~46 months)
- $7,000 loan at 12% with 3% origination fee. What is the effective amount received? (Answer: $6,790)
- Loan A: $25,000 at 6.5% for 5 years. Total interest? (Answer: $4,382)
- Credit score improves from 650 to 750. Rate drops from 15% to 8% on $20,000 for 4 years. Monthly savings? (Answer: ~$75/month savings)
Common Mistakes to Avoid
The most common mistake is not reading the fine print on origination fees. A 5% origination fee on a $20,000 loan means you only receive $19,000 but repay $20,000 plus interest — effectively raising the true interest rate. Another error is using personal loans for lifestyle expenses (vacations, electronics) without a repayment strategy, leading to debt accumulation. Many borrowers don't compare enough lenders; rates can vary 5-10% between offers for the same credit profile. Taking a personal loan to pay off credit cards but then continuing to use the cards is a debt trap that doubles your obligations. Also, missing payments on personal loans has severe credit consequences — the entire balance can be accelerated (due immediately). Finally, avoid variable-rate personal loans in rising rate environments; fixed rates provide payment certainty.
Key Takeaways
- Personal loan rates typically range from 6-36% depending on credit score; excellent credit gets the lowest rates.
- Always compare APR (which includes fees) rather than just the interest rate.
- Debt consolidation loans can save thousands vs high-interest credit card debt (20%+ → 8-12%).
- Shorter terms mean higher payments but much less total interest paid.
- Check for prepayment penalties — the best loans allow early payoff without extra charges.
- A good credit score (700+) can mean 50% lower interest rates — improving credit before borrowing pays off significantly.