Automotive Calculators
Fuel cost, lease-vs-buy, depreciation, and commute calculators for everyday car ownership decisions.
- MPG Calculator
Calculate your car's miles per gallon from miles driven and gallons used. Free, instant.
- Fuel Cost Calculator
Estimate the fuel cost for a trip from distance, MPG, and gas price. Free, instant.
- Commute Cost Calculator
Calculate your daily, weekly, monthly, and yearly commute fuel cost. Free, instant.
- Car Depreciation
Estimate a car's value over time using a constant annual depreciation rate. Free, instant.
- Lease vs. Buy
Compare the total cost of leasing vs. buying a car. Free, instant.
- EV Charging Cost
Calculate the cost to charge an electric vehicle from battery size and electricity price. Free, instant.
- Tire Size Comparison
Compare two tire sizes to see the diameter and speedometer difference. Free, instant.
- Car vs. Transit Cost
Compare the monthly cost of driving vs. taking public transit. Free, instant.
- VIN Checksum Validator
Validate a 17-character VIN's check digit, entirely in your browser. Free, instant.
- Towing Capacity Margin
Check your remaining towing capacity margin against your vehicle's rating. Free, instant.
- Maintenance Interval Tracker
Track recurring car maintenance by mileage interval. Free, instant.
- Auto Loan Payoff
See how much sooner and cheaper an auto loan payoff is with extra monthly payments. Free, instant.
- Tire Pressure & Temp
Calculate expected tire pressure change from temperature swings. Free, instant.
- Fuel Cost Comparison
Compare annual fuel cost between two vehicles by MPG and gas price. Free, instant.
- EV Charging Time
Estimate how long it takes to charge an EV given battery size and charger power. Free, instant.
- Tread Depth Checker
Check tire tread depth against safety and legal minimum thresholds. Free, instant.
- Annual Mileage Checker
Check a used car's average miles per year against typical US driving benchmarks. Free, instant.
- Parking Cost Calculator
Compare pay-as-you-go parking cost against a monthly pass. Free, instant.
- Battery CCA Guide
Look up recommended minimum cold cranking amps (CCA) by climate. Free, instant.
- Tire Rotation Interval
Calculate when your next tire rotation is due based on mileage. Free, instant.
- Octane Cost Difference
Calculate the extra annual cost of using premium gas instead of regular. Free, instant.
- EV Range Anxiety
Calculate how many charging stops a trip will need based on your EV's range. Free, instant.
- Vehicle LTV Calculator
Calculate a vehicle loan's loan-to-value ratio to check for negative equity. Free, instant.
- Tire Load Index
Look up a tire's maximum load capacity from its load index number. Free, instant.
- Washer Fluid Mix Ratio
Calculate concentrate and water amounts for a windshield washer fluid mix ratio. Free, instant.
- Car Loan Affordability
Calculate the maximum car loan you can afford based on your income. Free, instant.
- Idling Fuel Waste
Calculate the fuel cost of idling your vehicle over time. Free, instant.