Auto and Insurance Calculators
Calculators for car loans, leases, fuel costs, and mileage.
Number of Calculators: 21
What to Know
Buying, financing, and insuring a vehicle are covered as three related but distinct questions: Car Affordability and Lease vs. Buy for the initial decision, Auto Loan and Auto Lease for the financing math itself, and Auto Insurance and Auto Insurance Deductible for the ongoing cost of actually owning it. EV-specific calculators (EV Range, EV Charging Cost, EV Charging Time) get their own cluster distinct from the gas-vehicle Gas Mileage and Fuel Cost calculators, since the underlying math genuinely differs.
Home, Renters, Life, and Umbrella Insurance sit in this same category as the site's other everyday-insurance calculators, even though they're not vehicle-related — insurance as a category, not just auto insurance specifically.
- Auto Insurance CostEstimate your actual monthly and annual auto insurance cost after combining multi-policy, safe driver, and other common discounts.
- Home Insurance CostEstimate your actual monthly and annual homeowners insurance cost after combining multi-policy, security system, and other common discounts.
- Renters Insurance CostEstimate your actual monthly and annual renters insurance cost after combining multi-policy, safety feature, and other common discounts.
- Umbrella Insurance NeedsFind how much umbrella liability coverage you should carry based on your net worth, and whether your auto/home liability limits meet the typical minimum insurers require.
- Gas Mileage (MPG)Calculate your vehicle's fuel economy in MPG or liters per 100 km from the distance traveled and fuel used.
- Fuel CostCalculate how much fuel a trip will cost from the distance, your vehicle's fuel economy, and the price of fuel.
- Fuel SavingsCompare two vehicles' fuel economy to see how much you'd actually save (or spend more) on fuel per year and over time by switching.
- EV Charging CostEstimate what it costs to charge an electric vehicle at home, and compare that cost per mile against a similar gas vehicle.
- EV RangeEstimate how many miles an electric vehicle can travel on its current charge, from the battery capacity, efficiency, and charge level.
- EV Charging TimeEstimate how long it takes to charge an electric vehicle from its current charge level to a target level, given the battery capacity and charger power.
- Auto LeaseEstimate your monthly car lease payment from the vehicle price, down payment, residual value, term, and APR.
- Car AffordabilityFind the maximum vehicle price you can afford based on your income, existing debts, down payment, trade-in, and loan terms.
- Lease vs. BuyCompare the net cost of leasing a vehicle against financing and buying it over the same time period, accounting for the equity buying builds.
- Car Loan Early PayoffSee how much sooner your car loan is paid off and how much interest you save by adding a flat extra amount to your monthly payment.
- Tire SizeCompare two tire sizes to see the difference in overall diameter and how it affects your speedometer accuracy.
- HorsepowerEstimate a vehicle's horsepower from its quarter-mile trap speed or elapsed time and weight.
- Life Insurance NeedsEstimate how much life insurance coverage you need using the DIME method (Debt, Income, Mortgage, Education).
- Cash Back vs. Low InterestCompare a dealer cash rebate at the standard rate against a low promotional rate at full price to see which actually costs less.
- Car DepreciationEstimate a vehicle's resale value after a number of years using a commonly-cited real-world depreciation curve.
- Total Cost of Car OwnershipEstimate the full lifetime cost of owning a vehicle -- depreciation, financing interest, fuel, insurance, maintenance, and registration -- combined into one total.
- Auto Insurance DeductibleFind the break-even point between a lower and higher auto insurance deductible -- how long the premium savings take to offset the larger out-of-pocket cost.
Guided Journeys
Some of these calculators are also part of a guided journey — a connected chain that carries your numbers forward automatically. A journey may include steps from other categories too.
Fuel Economy Journey
Start Journey →Your vehicle's real-world fuel economy is the missing number behind almost every trip-cost estimate. This journey starts by calculating your actual MPG from a fill-up, then carries that figure into the fuel cost calculator so you get a trip or commute cost based on your car's real efficiency instead of a guess.
- Calculate your vehicle's MPG
- See what a trip will cost in fuel
Car Buying Journey
Start Journey →Buying a car involves more than just the sticker price: you need a realistic monthly payment, a clear answer on whether a cash rebate or a low promotional rate actually saves you more, and a sense of what the vehicle will cost to fuel once it's yours. This journey starts with the loan payment, carries the same vehicle price into the rebate-vs-low-rate comparison so you don't have to look it up twice, then estimates what a typical trip or commute will cost in fuel using the vehicle's known fuel economy -- its window-sticker MPG rating, or your own real-world figure if you already have one.
- Estimate Your Car Loan Payment
- Compare Rebate vs. Low-Interest Financing
- See What It Will Cost You in Fuel