Finance

Loan Payment Calculator

Estimate your monthly loan payment and see how interest, term, and extra payments impact the total cost of your loan over time.

Free Calculator๐Ÿ“… Updated for 2026โšก Instant results

โ™ข Your data is private and not stored.

Your estimated payment

$1,847 / month

โœ“ Paying on schedule
Total principal$300,000
Total interest$364,975
Total repaid$664,975
Payoff dateMay 8, 2055

โ“˜ Your monthly payment covers both principal (45%) and interest (55%).

Compare loan scenarios

See how different loan terms affect your payment and total cost.

15-year loan

$2,572

/ month

Total interest: $163,008

20-year loan

$2,193

/ month

Total interest: $226,268

30-year loan

$1,847

/ month

Total interest: $364,975

โš– Tip

Paying extra or choosing a shorter term can save you thousands in interest.

Understand your payment

Principal

$300,000

The amount you borrowed.

Interest

$364,975

The cost of borrowing.

Extra payments

$0

Additional payments reduce interest.

Total repaid

$664,975

Principal + interest.

Learn more

What your result means

Your monthly payment includes both principal and interest. Over time more goes toward principal.

Key terms explained

Principal ยท Interest ยท APR ยท Amortization

How to use this calculator

Enter loan details, adjust term or rate, add extra payments, then calculate.

The payment formula

M = P ร— [r(1+r)โฟ] รท [(1+r)โฟโˆ’1]

Worked example

Loan: $300,000 at 6.25% APR for 30 years.

How extra payments help

Adding just $200/month can save interest and pay off your loan sooner.

Costs not included

Property taxes, homeowners insurance, PMI and HOA fees.

Frequently asked questions

How is the monthly payment calculated? Can I change my payment later?

Reviewed byThis content is reviewed for accuracy.
Last reviewed: May 8, 2025

Trusted sourcesConsumer Financial Protection Bureau ยท U.S. Department of Energy

Important noteFor informational purposes only and does not replace professional advice.

Your privacy mattersYour information stays private and secure.