Snap Tool Suite

Free Automotive Calculators & Checklists

Know the real cost of the car before you sign — the loan payment, lease-vs-buy, what fuel or charging adds up to, and how fast it depreciates — then keep it running and sell it clean with ready-made checklists. Free and instant in your browser.

Run the car-loan numbers Browse all tools
Real loan, fuel & depreciation math Maintenance & inspection checklists Instant, no sign-up
Buying or running a car? Size the payment with the Car Loan Calculator, settle the Lease vs Buy question, then keep it healthy with the Car Maintenance Checklist.

Cost & ownership

What the car really costs to buy, run, and own over time.

Car Lease vs Buy Calculator

Compare the total cost of leasing versus buying the same car over the same period, including the resale value you keep when you buy.

Open

Car Loan Calculator

Your monthly auto loan payment, total interest, and amount financed — after down payment, trade-in, and sales tax.

Open

Fuel Cost Calculator

The gas cost for a trip from the distance, your MPG, and the gas price — plus gallons needed and cost per mile.

Open

Car Depreciation Estimator

Estimate your vehicle's value and depreciation over time based on age, mileage, and condition.

Open

EV Charging Cost Calculator

Calculate the cost to charge your electric vehicle at home or on the road based on electricity rates.

Open

Road Trip Cost Estimator

Total road trip budget across fuel, lodging, food, and extras — split by the number of travelers.

Open
Car-ownership guides Own smart and cut the cost of driving. Shop on Amazon → affiliate

Maintenance & paperwork

Keep it running, inspect before you buy, and paper the sale.

Vehicle Bill of Sale Generator

Create a printable car bill of sale — seller, buyer, vehicle, VIN, odometer, sale price, and an as-is clause.

Open

Car Maintenance Checklist

Stay on top of every service by mileage interval — oil, tire rotation, filters, fluids, brakes, and the big-mileage items. Progress saved.

Open

Used Car Inspection Checklist

Comprehensive checklist for inspecting a used car before purchase — engine, interior, exterior, and safety checks.

Open
Car care & tools Fluids, gauges, and a good basic kit. Shop on Amazon → affiliate

More automotive tools

Every other car calculator and checklist.

Auto Refinance Calculator

See if refinancing your car loan lowers your monthly payment, and how much total interest you save over the life of the loan.

Open

Car Affordability Calculator

How much car can you afford? See the max price and monthly payment from your income, down payment, and APR using the 20/4/10 rule.

Open

Tire Size Calculator

Compare two tire sizes — diameter, sidewall, circumference, and speedometer difference — to see if a new size will fit your car.

Open
More Automotive gear & guides Top-rated picks to go with these automotive tools. Shop on Amazon → affiliate

As an Amazon Associate we earn from qualifying purchases — at no extra cost to you. Affiliate disclosure.

← Browse all free tools