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Loan Calculator

Estimate monthly payment, total interest, and total cost for US car and personal loans.

Enter a positive loan amount, annual rate, and whole-month term.

Monthly payment
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Total interest
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Total cost
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Payoff schedule
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First payment: interest
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First payment: principal
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Fixed-rate amortizing loan. Fees, taxes, and extra payments are not included.

What the result explains

What This Calculator Provides

The Loan Calculator estimates the level monthly payment for a fixed-rate amortizing car, personal, or similar installment loan. It shows total interest, total scheduled cost, number of payments, and how the first payment divides between interest and principal. This makes the opening cost of borrowing visible without requiring a full amortization table. Use the EMI Calculator when you need a term in months or a year-by-year balance schedule.

  • monthly payment
  • total interest and scheduled cost
  • payment count
  • first payment interest/principal split

How to Use This Calculator

  1. Enter the known valuesUse the labeled fields and units shown in the calculator. Correct any validation message before continuing.
  2. Review the resultRead the main answer together with its breakdown, formula, rounding, and assumptions.
  3. Copy and verifyCopy the result when available, then check important decisions against the relevant record, institution, or professional.

Method

Formula and Calculation Method

Fixed-rate loan formula

M = P × r × (1 + r)ⁿ ÷ ((1 + r)ⁿ − 1)

  • P = amount borrowed
  • r = annual rate ÷ 12 ÷ 100
  • n = years × 12 monthly payments

First-month interest is P × r. The rest of the first payment reduces principal. Later interest falls as the outstanding balance declines.

Worked from input to answer

Worked Examples

$25,000 for five years at 7.5%

  1. P = $25,000
  2. r = 0.075 ÷ 12
  3. n = 5 × 12 = 60

Result: Payment = $500.95; total interest = $5,056.92; first payment principal = $344.70.

Same loan over three years

  1. Keep principal and rate unchanged.
  2. Reduce the term to 36 monthly payments.

Result: Payment rises to $777.66, but total interest falls to $2,995.60.

What the Payment Does Not Include

This models principal and interest only. For a home, property tax, insurance, and PMI change the number materially, and the mortgage calculator includes them. To see the same debt as installments with a balance schedule, use the EMI calculator.

A rate is easier to judge stripped of jargon — the percentage calculator helps there — and any payment should be compared against estimated take-home pay rather than gross salary.

Payment versus total cost

A low monthly payment is not the same as a low-cost loan. Extending the term can make the payment easier to fit into a budget while increasing how long interest accrues. Compare both the payment and total interest.

How amortization changes each payment

The scheduled payment stays level, but the interest portion is calculated from the remaining principal. More of an early payment goes to interest; more of a later payment goes to principal. The first-payment split makes that mechanism concrete.

Loan Calculator versus EMI

Both use the same fixed-rate amortization math. Loan Calculator is a concise cost and first-payment analysis using terms in years. EMI supports months or years, alternate currency formatting, and a yearly balance schedule.

Practical Uses

  • Comparing car or personal-loan terms
  • Checking the interest effect of a longer term
  • Understanding first-payment composition
  • Estimating a budget before seeking offers

Assumptions

  • The rate is fixed.
  • Payments are monthly, equal, and on schedule.
  • No fees, taxes, insurance, prepayment, or extra payments are included.

Important Limitations

  • Not suitable for variable-rate, interest-only, balloon, or irregular loans.
  • APR and note rate can differ when fees are included.
  • Actual lender schedules may use daily interest or different rounding.

Help & support

Frequently Asked Questions

Quick answers to common questions about the Loan calculator.

Can this estimate a car loan?

Yes, if it has a fixed rate, equal monthly payments, and no balloon payment.

Why is first-payment interest higher than later interest?

Interest is based on the remaining balance, which is highest before the first payment.

Does the result include origination fees?

No. Enter only the amount financed; separately account for fees and taxes.

Is a longer loan term cheaper?

It usually lowers the monthly payment but raises total interest for the same principal and rate.

Is this calculator a loan offer?

No. It is a mathematical estimate, not approval, advice, or a quote.