Installment loan
Loan Calculator
Estimate a monthly payment and total interest for personal loans, installment loans, or fixed-rate borrowing.
- Compare term and rate changes
- See payment and total interest
Loan hub
Loan Calculators and Borrowing Guides
Compare monthly payments, total interest, auto loan costs, debt-to-income pressure, and borrowing tradeoffs before you commit to a loan.
Loan calculators
Start with the numbers you need to estimate
Use these calculators to compare loan amount, term, rate, total interest, and the way a new payment fits into your monthly budget.
Car buying
Auto Loan Calculator
Estimate car payments with loan amount, rate, term, down payment, trade-in, and sales tax assumptions.
- Include down payment and trade-in
- Compare car payment scenarios
Approval check
Debt-to-Income Calculator
See how a new loan payment may affect your DTI before applying for credit.
- Check front-end and back-end DTI
- Compare debt load before borrowing
Interest cost
Interest Calculator
Compare how rate, time, and contributions affect growth or the opportunity cost of borrowing.
- Model rate and time tradeoffs
- Estimate compound growth alternatives
Loan guides
Read before you calculate
Use these guides to understand car affordability, debt ratios, interest math, and the tradeoffs between borrowing and using cash.
How Much Car Can You Afford?
Start with a payment range, then test taxes, fees, down payment, term, and DTI pressure.
What Loan Term Should You Choose?
Balance monthly affordability against total interest before stretching or shortening the repayment timeline.
What Is a Good Debt-to-Income Ratio?
Learn how lenders and households use DTI to judge whether another payment is manageable.
How Interest Rates Affect Loan Costs
Understand how principal, APR, loan term, and amortization shape the monthly payment and total cost.
How to Compare Personal Loan Offers
Look beyond payment size by comparing APR, fees, term, prepayment rules, and lender fit.
New Car vs Used Car Financing
Compare vehicle price, rates, depreciation, warranty coverage, repair risk, and total ownership cost.
How to Calculate a Loan Payment
What Loan Term Should You Choose?
How Interest Rates Affect Loan Costs
Fixed vs Variable Loans Explained
How to Compare Personal Loan Offers
How Much Car Can You Afford?
New Car vs Used Car Financing
How Auto Loan Interest Works
Best Auto Loan Term Lengths Explained
Common Auto Loan Mistakes to Avoid
What Is a Good Debt-to-Income Ratio?
How DTI Affects Mortgage Approval
Front-End vs Back-End DTI Explained
Ways to Improve Your DTI Ratio
DTI Limits for Different Loan Types
How to Use Financial Calculators
Budget Planner Calculator
ROI Calculator
Planning workflow
How to use this hub
Check the payment, understand the interest, then confirm that the new debt still fits your cash flow.
Estimate payment
Start with amount, APR, term, and down payment if you are comparing a vehicle.
Compare total cost
Look beyond the lowest monthly payment and compare total interest paid.
Read the related guide
Review DTI, car affordability, and cash-versus-borrowing tradeoffs.
Choose the next calculator
Move to budget, debt payoff, or mortgage planning after the loan is modeled.
Ready to compare your numbers?