Loans Calculators
Personal, student and amortizing loans — plus interest and compounding math.
Loan calculators let you see the true cost of borrowing before you sign. Work out the monthly payment for a personal, student or auto loan, find the rate a quoted payment implies, compare two loans side by side, and calculate how much you can borrow for a given budget. Understanding amortization and interest helps you borrow smarter and pay less overall.
All calculators
Compound Interest Calculator
See how your money grows with compound interest over time.
Loan Payment Calculator
Estimate the monthly payment and total interest for any amortizing loan.
Personal Loan Payoff Calculator
How long to pay off your personal loan and what it costs.
Student Loan Payoff Calculator
Plan your student loan payoff time and total interest.
Loan Interest Rate Calculator
Find the interest rate implied by a loan payment.
Simple Interest Calculator
Interest charged only on the original principal.
Max Loan Amount Calculator
The biggest loan you can afford with a fixed monthly budget.
Loan Comparison Calculator
Compare two loan offers side by side on payment and interest.
How these calculators work
Loan calculators let you see the true cost of borrowing before you sign. Work out the monthly payment for a personal, student or auto loan, find the rate a quoted payment implies, compare two loans side by side, and calculate how much you can borrow for a given budget. Understanding amortization and interest helps you borrow smarter and pay less overall. Every calculator in this category publishes its formula, worked example and assumptions so you can verify the math yourself.
Frequently asked questions
What is the difference between APR and interest rate?
The interest rate is the cost of borrowing the principal; the APR also includes lender fees rolled into the loan, so it reflects the true annual cost. Comparing APRs is the fairer way to compare loans.
How does a longer loan term affect the total cost?
A longer term lowers the monthly payment but multiplies the number of interest charges, so total interest climbs. The Loan Payment Calculator shows both effects side by side for any term.
What is a good interest rate for a personal loan?
Personal loan rates vary with credit score, income and the market. Generally, a lower rate and shorter term save the most interest; always compare APR and check the total interest, not just the payment.