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Loan Calculator

Find the payment on an amortized loan for any payment and compounding frequency, or what a lump-sum loan owes or pays.

Change the values and press Calculate to work out your own figures.

Amortized loan

Enter the amount, rate and term.

About loan amountWhat you borrow.
About interest rate, % a yearNominal annual rate.
About compoundingHow often interest is added.
About paymentsHow often you pay.
About currencyChanges how amounts are shown, not the math; your choice is remembered on this device.
About term, yearsYears of payments.
About and months (optional)Extra months.
Result
Payment
$1,110.21
Total of 120 payments
$133,224.33
Total interest
$33,224.33

The payment is $1,110.21 a month.

Year by year
YearInterestPrincipalBalance
1$5,795.22$7,527.30$92,472.70
2$5,330.96$7,991.56$84,481.14
3$4,838.09$8,484.43$75,996.71
4$4,314.76$9,007.76$66,988.95
5$3,759.18$9,563.34$57,425.61
6$3,169.33$10,153.19$47,272.42
7$2,543.10$10,779.42$36,493.00
8$1,878.26$11,444.26$25,048.74
9$1,172.41$12,150.11$12,898.63
10$423.02$12,898.63$0.00
Show the working
  1. payment = P × i ÷ (1 − (1 + i)^−n)
  2. each payment: interest = balance × i (to the cent), the rest repays principal

Lump sum due at maturity

Enter the amount, rate and term.

About loan amountWhat you borrow.
About interest rate, % a yearNominal annual rate.
About compoundingHow often interest is added.
About currencyChanges how amounts are shown, not the math; your choice is remembered on this device.
About term, yearsYears of payments.
About and months (optional)Extra months.
Result
Due at maturity
$179,084.77
Interest
$79,084.77

$179,084.77 is due at the end.

Show the working
  1. due = amount × (1 + i)^n

Amount received for a sum due

Enter the amount due, rate and term.

About amount due at maturityPaid back at the end.
About interest rate, % a yearNominal annual rate.
About compoundingHow often interest is added.
About currencyChanges how amounts are shown, not the math; your choice is remembered on this device.
About term, yearsYears of payments.
About and months (optional)Extra months.
Result
Received now
$55,839.48
Interest
$44,160.52

You receive $55,839.48 now.

Show the working
  1. received = due ÷ (1 + i)^n

How to use it

Enter the amount, rate and term. Enter the amount, rate and term. Enter the amount due, rate and term.

Enter amounts without commas or with them; rates are percentages (5 for 5%). Negative amounts are allowed where a sign means money paid out.

Key facts

payment = P × i ÷ (1 − (1 + i)^−n), i = the equivalent rate per payment
deferred = P × (1 + i)^n; bond = due ÷ (1 + i)^n

Questions

What is the monthly payment on $100,000 at 6% for 10 years?

$1,110.21.

Formulas

payment = P × i ÷ (1 − (1 + i)^−n), i = the equivalent rate per payment
deferred = P × (1 + i)^n; bond = due ÷ (1 + i)^n

Sources

Limitations

  • Results are estimates for planning, not offers or financial advice; lenders and banks may round, count days or time payments differently.
  • Rates are nominal annual rates compounded as you choose; payments at a different frequency use the equivalent periodic rate.

Formula version 0.1.0Reviewed