Auto & Travel Calculators
Auto and travel calculators for planning trips and understanding what a vehicle costs. Work out the fuel cost of a drive, find your miles per gallon, compare tire sizes, price a car lease, estimate what you can tow and see the total cost of owning a car. Every tool supports US and metric units, runs in your browser and needs no sign-up.
Last updated November 4, 2026
Featured tools
Auto & Travel · Fuel & Trips
Fuel Cost CalculatorTrip fuel cost from distance, fuel economy and price, in US or metric units
Auto & Travel · Fuel & Trips
MPG CalculatorMiles per gallon from distance and fuel used, with L/100 km and km per liter
Auto & Travel · Vehicle Ownership
Tire Size CalculatorCompare two tire sizes: diameter, sidewall, circumference and speedometer difference
Auto & Travel · Vehicle Ownership
Vehicle Cost CalculatorTotal cost of owning a car: depreciation, fuel, insurance and maintenance
All Auto & Travel calculators
Fuel & Trips
Fuel cost, MPG and mileage
Auto & Travel · Fuel & Trips
Fuel Cost CalculatorTrip fuel cost from distance, fuel economy and price, in US or metric units
Auto & Travel · Fuel & Trips
MPG CalculatorMiles per gallon from distance and fuel used, with L/100 km and km per liter
Auto & Travel · Fuel & Trips
Mileage Reimbursement CalculatorReimbursement from miles driven at the 2026 IRS business, medical or charity rate
Auto & Travel · Fuel & Trips
Gas CalculatorGas needed and trip cost from distance, fuel economy and price, split by person
Auto & Travel · Fuel & Trips
Mileage CalculatorMiles driven from odometer readings, with miles per day, MPG and fuel cost per mile
Auto & Travel · Fuel & Trips
EV Charging Cost CalculatorCost per charge and per mile for an electric car, with optional gas comparison
Vehicle Ownership
Leasing, tire size and towing
Auto & Travel · Vehicle Ownership
Tire Size CalculatorCompare two tire sizes: diameter, sidewall, circumference and speedometer difference
Auto & Travel · Vehicle Ownership
Vehicle Cost CalculatorTotal cost of owning a car: depreciation, fuel, insurance and maintenance
Auto & Travel · Vehicle Ownership
Car Lease CalculatorMonthly lease payment from cap cost, residual, money factor and tax
Auto & Travel · Vehicle Ownership
Towing Capacity CalculatorEstimate the heaviest trailer from your own GVWR, GCWR, payload and tongue weight ratings
Frequently asked questions
How do I calculate the fuel cost of a trip?
Use the Fuel Cost Calculator: enter the distance, your MPG and the fuel price. It returns the gallons needed and the total cost.
How do I find my car’s MPG?
Use the MPG Calculator with the miles you drove and the gallons you used to refill the tank.
Can I check if a different tire size will fit my speedometer?
Yes. The Tire Size Calculator compares two sizes and shows the diameter change and speedometer difference.
Do these calculators store my numbers?
No. Every calculation runs in your browser and nothing you enter is saved or uploaded.