Loan & Installments Calculator
Monthly installment, total paid and total interest.
Monthly installment
$499.24
× 24
Total paid
$11,981.78
Total interest
$1,981.78
How it works
This calculator uses the amortized-payment formula (constant monthly installments) — the standard for personal loans, mortgages and car loans.
Formula:
PMT = PV × i / (1 − (1 + i)⁻ⁿ)
PV = loan amount, i = monthly rate, n = number of installments.
Practical examples
$10,000 · 1.5%/mo · 24 months
Installment $499.24 · Total $11,981.68 · Interest $1,981.68.
$50,000 · 2%/mo · 36 months
Installment $1,961.16 · Total $70,601.82 · Interest $20,601.82.
Frequently asked questions
Is this APR or monthly rate?
Enter the monthly rate. For APR, divide by 12 as an approximation (or use (1+APR)^(1/12)−1 for exact compounding).
Does this include fees?
No. Origination fees, insurance and taxes are extra. Check the contract for the total effective cost.
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⚠️ Disclaimer
This calculator is for educational and informational purposes only. Results are estimates based on public formulas and may contain inaccuracies or be outdated. We are not accountants, lawyers, doctors, or financial advisors — for any important decision (tax filings, contracts, diagnoses, financial planning), always consult a qualified professional. calculadora.work assumes no liability for decisions made based on the content of this site.