Investing & Finance

Installment loan calculator

The loan amount, interest rate and term are enough to accurately estimate your monthly payment.

Updated on Apr 21, 2026 Calculator, calculation path and examples on one page

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Calculator

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Calculation path

Step by step

  1. Determine the amount financed

    Formula: Loan amount - down payment + one-time costs

    Values inserted: €15,000.00 - €0.00 + €0.00

    Result: €15,000.00

  2. Calculate monthly rate

    Formula: Annuity formula

    Values inserted: with monthly interest rate 0.533%

    Result: €292.79

  3. Total payment over the term

    Formula: Monthly rate × months

    Values inserted: €292.79 × 60

    Result: €17,567.41

  4. Interest costs

    Formula: Total payment - sum financed

    Values inserted: €17,567.41 - €15,000.00

    Result: €2,567.41

Instructions

How to use this calculator correctly

Inputs

  • Enter the planned loan amount.
  • A down payment lowers the actual amount financed.
  • One-off costs increase the total amount of the loan.

Read the result

  • The monthly rate shows your fixed charge per month.
  • Interest costs and total payment help when comparing multiple offers.

What to keep in mind

  • Compare not only the rate, but also the term.
  • Check the effective annual interest rate and possible additional costs in the contract.

Related guide: ETF, savings plan and compound interest simply explained

Examples

Typical calculations

15,000 euros over 60 months.

Household loan

monthly rate: €292.79

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10,000 euros needed, 2,000 euros already available.

With deposit

monthly rate: €184.96

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Classic zero percent financing.

Interest free

monthly rate: €200.00

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FAQ

Frequently asked questions

How does the calculator differ from the car loan calculator?

This calculator is deliberately kept general and is suitable for consumer loans, debt restructuring and other purposes.

Is the APR included?

No. The calculator works with the entered interest rate. You should check processing costs and insurance separately.

What happens at 0 percent interest?

The financed amount is then distributed evenly over the months.

Are special repayments taken into account?

No. Special repayments would further reduce the remaining term or the remaining debt.

What counts as a one-time cost?

For example, payout discounts, brokerage costs or additional contractual fees.

Related calculators

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Car loan calculator

Calculate the monthly payment, total amount and interest costs for a car loan.

Sources and notes

Rule status and context

Formula
Annuity formula for constant monthly installments; Special case 0 percent interest as a simple distribution over the term.
Note
The calculation is a guide and does not replace a binding loan offer from the bank.