Vehicle & Auto Calculators

19 free vehicle calculators for gas trip cost, car payments, MPG, tire sizes, EV charging, EV vs gas, commute cost, and more. No signup required.

19 free tools

Gas Trip Cost Calculator

Enter distance, MPG, and gas price to calculate total fuel cost and gallons needed for any road trip.

Car Payment Calculator

Calculate monthly auto loan payment with tax and interest. Enter price, down payment, rate, and term.

MPG Calculator

Calculate actual fuel economy from a fill-up. Shows MPG, L/100km, cost per mile, and fuel cost.

Tire Size Calculator

Calculate tire overall diameter, sidewall height, circumference, and revolutions per mile from metric size.

Fuel Savings Calculator

Calculate annual and monthly fuel savings from switching to a higher-MPG vehicle.

EV Charging Cost Calculator

Calculate cost per charge, cost per mile, and monthly charging costs for electric vehicles.

Lease vs Buy Calculator

Compare total cost of leasing vs buying a car. See which option costs less over the comparison period.

Car Depreciation Calculator

Calculate your car's current value using standard depreciation rates with year-by-year breakdown.

Towing Capacity Calculator

Calculate available payload capacity from GVWR, curb weight, passengers, and cargo weight.

Road Trip Cost Splitter

Split fuel, tolls, parking, food, and lodging costs evenly among all passengers.

Engine Displacement Calculator

Calculate engine displacement in cc, liters, and cubic inches from bore, stroke, and cylinders.

Auto Loan Early Payoff Calculator

See how extra payments, biweekly payments, or a lump sum can pay off your car loan faster and save interest.

Total Cost of Ownership Calculator

5-year projection of depreciation, fuel, insurance, maintenance, and financing costs for any vehicle.

Drive or Fly Calculator

Compare total cost and time of driving vs flying for a trip. Factor in gas, airfare, hotels, and number of travelers.

Car Affordability Calculator

Income, budget, down payment, rate, and term to maximum car price using the 20/3/8 rule.

Road Trip Budget Planner

Total trip cost: fuel, lodging, food, activities, and tolls with per-person and per-day breakdown.

Commute Cost Calculator

One-way distance, days per week, MPG, gas, parking, and tolls to daily, monthly, and annual commute cost.

EV vs Gas Comparison

Annual cost, maintenance, and break-even year comparison between gas and electric vehicles.

Mileage Reimbursement Calculator

Miles driven times rate per mile to reimbursement amount for business, medical, and charity categories.