Auto & Vehicle Calculators
Plan your next vehicle purchase with auto loan, lease, and insurance calculators.
28 free tools available - no signup required
Buying or leasing a car is one of the biggest financial decisions you'll make outside of housing. Our auto calculators help you compare loan vs lease costs, estimate monthly payments, calculate depreciation, and figure out the true total cost of vehicle ownership including fuel, insurance, and maintenance. Use our tools to negotiate from a position of knowledge.
Annual Car Expense Calculator
Free Annual Car Expense Calculator - get a full-year breakdown of every cost associated with owning your vehicle.
Auto Insurance Calculator
Estimate your auto insurance premium based on vehicle value, driver age, credit score, coverage level, deductible, and mileage. Understand how each factor affects your rate.
Auto Lease Calculator
Calculate your monthly lease payment, total lease cost, and finance charges based on MSRP, negotiated price, residual value, and money factor. Compare lease offers confidently.
Auto Loan Calculator
Calculate your monthly auto loan payment, total interest, and total cost based on vehicle price, down payment, interest rate, and loan term. Compare financing scenarios instantly.
Auto Refinance Calculator
Free Auto Refinance Calculator - see how much you can save by refinancing your car loan at a lower rate. Compare payments and total cost instantly.
Car Affordability Calculator
Find out how much car you can afford based on your monthly budget, down payment, trade-in value, interest rate, and loan term. Work backward from your budget to find your buying power.
Car Depreciation Calculator
Free Car Depreciation Calculator - see how your vehicle loses value year by year. Plan the best time to sell or trade in.
Car Maintenance Cost Calculator
Free Car Maintenance Calculator - estimate annual maintenance costs by car type, age, and mileage. Set a smart monthly savings goal.
Car Sales Tax Calculator
Free Car Sales Tax Calculator - calculate the sales tax on a vehicle purchase including trade-in credits and state/local rates.
Car Trade-In Calculator
Free Car Trade-In Calculator - compare trading in at a dealer versus selling privately to see which nets you more money.
Car vs Public Transit Calculator
Free Car vs Transit Calculator - compare the annual cost of driving versus public transit and occasional rideshares.
Carpool Savings Calculator
Free Carpool Savings Calculator - see how much you save monthly and yearly by sharing your commute with other riders.
Commute Cost Calculator
Free Commute Cost Calculator - calculate the true daily, monthly, and yearly cost of driving to work including fuel and wear.
Down Payment Optimizer
Free Down Payment Optimizer - find the ideal down payment to avoid negative equity and minimize total cost.
EV Charging Cost Calculator
Free EV Charging Cost Calculator - calculate the cost to charge your EV at home or at public chargers. Compare to gas costs.
EV vs Gas Total Cost Calculator
Free EV vs Gas Calculator - compare the 5-year total cost of an electric vehicle versus a gas car including purchase, fuel, and maintenance.
Fuel Cost Calculator
Estimate fuel cost for any trip or commute based on distance, MPG, and gas price. See total gallons needed, cost per mile, and round-trip expenses instantly.
Full Coverage vs Liability Calculator
Free Full Coverage vs Liability Calculator - determine if full coverage is worth the extra cost based on your car's value.
Gap Insurance Calculator
Free Gap Insurance Calculator - find out if gap insurance is worth it by comparing your loan balance against your car's value.
Loan vs Lease Calculator
Compare the true cost of buying vs leasing a vehicle. See net cost, monthly payments, equity built, and which option saves more based on your driving needs and budget.
Mileage Reimbursement Calculator
Free Mileage Reimbursement Calculator - calculate your business mileage reimbursement using the current IRS standard rate.
Monthly Car Budget Calculator
Free Monthly Car Budget Calculator - check if you're spending the right amount on your car using the 15 percent income rule.
MPG Calculator
Free MPG Calculator - calculate your car's real-world miles per gallon from fill-up data. Track fuel efficiency and annual costs.
New vs Used Car Calculator
Free New vs Used Car Calculator - compare the 5-year total cost of buying new versus used to find the better deal.
Rideshare vs Car Ownership Calculator
Free Rideshare vs Car Calculator - find out if Uber/Lyft is cheaper than owning a car based on your usage patterns.
Road Trip Cost Calculator
Free Road Trip Cost Calculator - estimate total trip cost including fuel, hotels, food, and tolls. Split costs between travelers.
Vehicle Registration Cost Estimator
Free Vehicle Registration Calculator - estimate your annual registration and DMV fees based on your state's fee method.
Vehicle Total Cost of Ownership
Free Vehicle Total Cost Calculator - calculate the true monthly cost including payment, insurance, fuel, maintenance, and depreciation.
Auto Loan Calculator 2026
Calculate your 2026 auto loan payment with current rates. Compare new and used car financing, see total interest costs, and find the best loan term.
Auto Loan Comparison
Compare two auto loan offers side by side to find the better deal. See which loan has lower monthly payments, less total interest, and the lowest total cost instantly.
Auto & Vehicle Guides
APR vs Interest Rate: The Difference in Dollars
An interest rate is the price of borrowing the principal. APR folds mandatory fees into one yearly figure: $6,000 in lender fees turns a 6.5% mortgage into roughly a 6.70% APR. The catch is that APR assumes you hold the loan for the full term, which is exactly where it can mislead you.
10 min readAuto Insurance in 2026: How to Lower Your Premium
Average auto insurance premiums hit $2,150/year in 2026. Here's how coverage works, what actually drives your premium, and which discounts are worth pursuing.
9 min readHow Car Trade-In Values Work (and How to Get More)
A trade-in offer is your car's wholesale value minus reconditioning costs and dealer margin, typically 10-25% under retail. Most states then tax only the difference on your next purchase -- a $12,000 trade against a $32,000 car saves $840 at a 7% rate.
10 min readEV vs Gas Car in 2026: True Cost of Ownership Compared
The average EV costs $12,000 more upfront than a comparable gas vehicle in 2026, but fuel and maintenance savings of $2,000-$3,500 per year mean most EV buyers break even in 4-6 years -- before accounting for the $7,500 federal tax credit.
9 min readFirst-Time Homebuyer Guide 2026: Step-by-Step
Buying your first home in 2026 means navigating 6.75% mortgage rates, elevated prices, and a complex loan landscape. This step-by-step guide covers every stage from credit prep through closing.
12 min readHow Much Car Can I Afford? The 20/4/10 Rule Explained
The 20/4/10 rule says: 20% down, finance for no more than 4 years, and keep total car costs under 10% of gross income. On a $75,000 salary, that limits you to roughly a $28,000 vehicle.
8 min readIs Gap Insurance Worth It? Run the Numbers
Finance a $35,000 car with $3,000 down and tax rolled in, and one year later you owe about $2,000 more than the car is worth. Gap insurance bridges that hole for $50-$150 a year from your insurer, or $400-$800 once at the dealer. Three numbers decide whether you need it at all.
10 min readLease vs Buy a Car in 2026: The Complete Math
On a $42,000 sedan, leasing runs about $520/month while financing runs $780/month -- but after 5 years you own nothing with a lease. The math depends on how you use a car, not just the monthly payment.
9 min readReviewed & Methodology
Every calculator is built using industry-standard formulas, validated against authoritative sources, and reviewed for accuracy against our published methodology. All calculations run privately in your browser - no data is stored or shared.