Equal payment = principal × monthly rate × (1+monthly rate)^months ÷ ((1+monthly rate)^months−1)
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Equal payment Equal principal Bullet payment Equal payments are easier to budget; equal principal starts higher but can reduce total interest. A longer term lowers the monthly payment but may increase total interest. Use the lender’s agreement for the actual rate and prepayment conditions.
FINANCE · LOAN PLANNER
Loan interest calculator
Enter loan terms and compare monthly payments and total interest across repayment methods.
USD · Changing country changes the displayed currency and guidance; your entered rate stays the same. No unverified country-specific rate or fee is applied.
United States: fixed-rate fully amortizing loans are the mainstream. Equal-principal and bullet-style interest-only or balloon terms are product-specific.
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At 0% annual interest, the principal is divided evenly across the term.Loan amount · Annual interest rate · Loan term
Repayment method
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Results
Total interest
$2,466,681.69Total repayment$30,466,681.69
First payment$634,722.54
Last payment$634,722.54
Interest vs principal8.8%
Loan amount $28,000,000.00Total interest $2,466,681.69
Amortization flow
| Period | Payment | Principal | Interest | Balance |
|---|---|---|---|---|
| 1 Period | $634,722.54 | $536,722.54 | $98,000.00 | $27,463,277.46 |
| 2 Period | $634,722.54 | $538,601.06 | $96,121.47 | $26,924,676.40 |
| 3 Period | $634,722.54 | $540,486.17 | $94,236.37 | $26,384,190.23 |
| 4 Period | $634,722.54 | $542,377.87 | $92,344.67 | $25,841,812.36 |
| 5 Period | $634,722.54 | $544,276.19 | $90,446.34 | $25,297,536.17 |
| 6 Period | $634,722.54 | $546,181.16 | $88,541.38 | $24,751,355.01 |
| … 42 periods hidden | ||||
Repayment comparison
$28,000,000.00 · 4.2% · 48months| Repayment method | Total interest | First payment | Last payment | Profile |
|---|---|---|---|---|
| Equal payment | $2,466,681.69 | $634,722.54 | $634,722.54 | Same payment every month Common |
| Equal principal | $2,401,000.00 | $681,333.33 | $585,375.00 | Fixed principal, declining interest Product-specific |
| Bullet payment | $4,704,000.00 | $98,000.00 | $28,098,000.00 | Interest monthly, principal at maturity Product-specific |
Calculation basis
Equal principal = principal ÷ months + remaining balance × monthly rate
Bullet payment = principal × monthly rate; principal is added in the final month
Loan interest planning guide
The real burden changes with the rate, repayment method and term even for the same loan amount. These figures are estimates based on your inputs.
✦ Tips!
⚠ Cautions
- Rates, limits and underwriting vary by lender and product, so no country-specific rate is invented.
- Guarantee fees, stamp duties and prepayment charges are not included.
- Variable-rate loans can change the payment and total interest when the rate resets.
STEPS
How to use
- Choose a country and enter the loan amount, annual rate and term.
- Select equal payment, equal principal or bullet repayment.
- Review total interest, the payment flow and the method comparison.