Loan Calculator
Work out your monthly payment, total interest and amortization schedule with fixed or declining payments.
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| Monthly payment | 1,468.75 |
| Total paid | 70,500 |
| Total interest | 20,500 |
Estimate only: it excludes origination fees, insurance and other charges that lenders include in the APR.
Amortization schedule
| # | Monthly payment | Interest | Principal | Balance |
|---|---|---|---|---|
| 1 | 1,468.75 | 750 | 718.75 | 49,281.25 |
| 2 | 1,468.75 | 739.22 | 729.53 | 48,551.72 |
| 3 | 1,468.75 | 728.28 | 740.47 | 47,811.24 |
| 4 | 1,468.75 | 717.17 | 751.58 | 47,059.66 |
| 5 | 1,468.75 | 705.89 | 762.86 | 46,296.81 |
| 6 | 1,468.75 | 694.45 | 774.3 | 45,522.51 |
| 7 | 1,468.75 | 682.84 | 785.91 | 44,736.6 |
| 8 | 1,468.75 | 671.05 | 797.7 | 43,938.9 |
| 9 | 1,468.75 | 659.08 | 809.67 | 43,129.23 |
| 10 | 1,468.75 | 646.94 | 821.81 | 42,307.42 |
| 11 | 1,468.75 | 634.61 | 834.14 | 41,473.28 |
| 12 | 1,468.75 | 622.1 | 846.65 | 40,626.63 |
Quick answer: To estimate a loan, enter the amount borrowed, the interest rate (monthly or annual) and the term in months, then choose Fixed payments (annuity) or Equal principal (declining payments). You'll see the payment, total paid, total interest and a month-by-month schedule.
How to do it in 3 steps
- 1Enter amount, rate and term.
- 2Choose fixed or declining payments.
- 3Compare the payment and total interest.
Why use Pronto Arquivo
Two methods
Compare fixed payments with equal-principal, declining payments.
Full schedule
Interest, principal and remaining balance for every payment.
Monthly or annual rate
Converts an annual rate to its monthly equivalent.
Any kind of loan
Auto loans, mortgages, personal and student loans.
Guides
Fixed or declining payments?
With fixed payments every installment is the same, but you pay more interest overall. With equal principal the first payments are higher and total interest is lower.
APR
Lenders add origination fees, insurance and other charges; always compare the APR (annual percentage rate) on the loan disclosure.
Frequently asked questions
How is a monthly loan payment calculated?
For fixed payments: payment = amount × rate ÷ (1 − (1 + rate)^−months).
What is an equal principal loan?
You repay the same principal each month and interest shrinks, so the payment goes down.
Which method costs less interest?
Equal principal (declining payments).
Does it include fees and insurance?
No; those vary by lender and are reflected in the APR.
