Free automotive calculators for fuel cost, MPG, EV charging, tire size, leases, depreciation, towing and road-trip planning.
Start with high-use fuel, efficiency and tire-size calculations.
Estimate gallons of fuel and trip cost from distance, fuel economy and gas price.
Calculate miles per gallon, gallons per 100 miles and liters per 100 kilometers from distance and fuel used.
Compare two metric tire sizes for diameter, circumference, revolutions per mile and speedometer difference.
Fuel, trip, tire, lease, ownership and towing tools.
Estimate a vehicle lease payment from capitalized cost, residual value, money factor, term and sales tax.
Estimate an auto loan payment after down payment, trade-in and sales tax. Get instant results with formulas, examples and no sign-up.
Estimate wall energy and charging cost from battery size, starting charge, ending charge, charging efficiency and electricity rate.
Convert vehicle fuel economy between miles per gallon (U.S.) and liters per 100 kilometers. Get instant results with formulas and examples.
Estimate gallons of fuel and trip cost from distance, fuel economy and gas price.
Calculate miles per gallon, gallons per 100 miles and liters per 100 kilometers from distance and fuel used.
Estimate total road-trip cost from mileage, MPG, fuel price, tolls, lodging, food and number of travelers.
Solve for speed, distance or travel time using the basic speed-distance-time relationships.
Compare two metric tire sizes for diameter, circumference, revolutions per mile and speedometer difference.
Estimate the weight-limited trailer capacity from GCWR, curb weight, passengers/cargo and the manufacturer’s rated towing limit.
Estimate fuel needed and total fuel cost for one or more trips from mileage, MPG and fuel price.
Estimate a vehicle’s future value and total depreciation using a declining annual depreciation rate.