Quick answer: A payment calculator finds your monthly loan or mortgage payment from the amount, interest rate, and term. For example, a $20,000 loan at 6% over 5 years costs about $387 per month, with roughly $3,200 paid in total interest over the loan.
Finance Calculator πŸ‡ΊπŸ‡Έ USA πŸ‡¬πŸ‡§ UK 2025 / 26 Live Results

Payment Calculator

Estimate monthly payment, total interest, payoff cost, and view a live amortization-style breakdown for loans in USD or GBP.

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Payment Calculator

Live 2025/26
US mode uses a standard amortizing loan payment formula with monthly compounding, suitable for auto loans, personal loans, and mortgage-style repayment estimates shown in US dollars.
$
Enter the total cost of the item, vehicle, or financed purchase.
$
Cash paid upfront reduces the amount you need to finance.
%
APR or nominal annual rate used for monthly payment calculation.
years
Length of the loan in years.
$
Origination, documentation, or setup fees added to cost.
%
Useful for car and equipment payments in states with sales tax.
$
Optional extra payment to reduce interest and shorten payoff time.
Choose whether taxes and fees are included in the loan balance.
UK mode uses the same amortizing repayment formula for finance agreements, personal loans, and fixed-rate repayment estimates shown in pounds sterling.
Β£
Total price of the financed purchase or borrowing requirement.
Β£
Initial deposit paid before finance begins.
%
Enter the representative rate or agreement rate.
years
Length of repayment period.
Β£
Set-up, document, or finance arrangement charges.
%
Use this when the financed item includes VAT or tax on price.
Β£
Optional overpayment to clear the balance earlier.
Choose whether VAT and fees are part of the finance balance.

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Payment Calculator Guide 2026

Guide

⚠️ Disclaimer

Important

This tool provides payment estimates for informational purposes only. It is not financial, legal, lending, or tax advice. Actual payment terms, APR, compounding methods, fees, insurance, and lender-specific conditions may change your real repayment amount. Always review your official loan agreement and consult a qualified adviser before making borrowing decisions.

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How your monthly payment is worked out

For an amortizing loan, the monthly payment is fixed and calculated with the formula payment = P Γ— [r(1 + r)ⁿ] Γ· [(1 + r)ⁿ βˆ’ 1], where P is the amount borrowed, r is the monthly interest rate (the annual rate divided by 12), and n is the number of monthly payments. Each payment covers the interest due that month, and the remainder reduces the principal.

Early in the loan most of each payment goes to interest because the balance is large; over time the balance shrinks and more of each payment chips away at the principal.

What changes your payment

Three levers move the monthly figure. A larger principal raises it directly. A higher interest rate increases both the payment and the total cost. A longer term lowers the monthly payment but increases total interest, while a shorter term does the opposite.

The calculator can solve for any missing value, so you can work backwards from an affordable monthly budget to see how much you can borrow, or compare how a small rate difference changes the lifetime cost. Comparing the APR rather than the headline rate gives the truest picture, since APR includes fees.

Frequently Asked Questions

How is a monthly payment calculated?

For an amortizing loan: payment = P Γ— [r(1+r)^n] Γ· [(1+r)^n βˆ’ 1], where P is the amount borrowed, r is the monthly interest rate (APR Γ· 12), and n is the number of months.

Can this calculator solve for loan amount or term?

Yes β€” supply any combination of amount, rate, term and payment, and it solves for the missing value, so you can work out how much you can borrow for a given budget.

Does a longer term reduce my payment?

Yes, but it increases the total interest paid. A longer term lowers the monthly cost while a shorter term saves money overall.

What is APR and why does it matter?

APR is the yearly cost of borrowing including fees, not just the interest rate. Comparing APRs gives a fairer picture of which loan is truly cheaper.