Fuel is one of those costs that quietly adds up in the background — a few dollars here, a fill-up there — until you actually sit down and total a month or a year of driving. And with electric vehicles now in the mix, “fuel cost” doesn’t even mean one thing anymore. The six calculators below cover both sides: getting an accurate MPG for a gas car, and working out what an EV actually costs and how far it’ll really go on a charge.
Getting a Real Number for a Gas Vehicle
Car MPG Calculator
The simplest of the bunch: enter the miles you drove and the gallons it took to refill, and the Car MPG Calculator gives you a miles-per-gallon figure for that one fill-up. It also estimates your cost per mile and tank range if you add a fuel price, which makes it a quick way to sanity-check whether your car is running close to its rated economy before a long drive.
Car Fuel Economy Calculator
A single fill-up can be thrown off by a heavy foot, a cold morning, or a tank of mostly highway miles. The Car Fuel Economy Calculator is meant for tracking your MPG across several fill-ups instead of just one, which smooths out those swings and gives you a number that actually reflects how you drive day to day — usually a bit different from the window-sticker figure, which is based on standardized lab testing rather than your commute.
Car Fuel Calculator
When you don’t need a detailed breakdown and just want both numbers at once, the Car Fuel Calculator combines MPG and fuel cost into a single estimate. Enter your distance, efficiency, and fuel price, and it returns both figures in one pass — a faster route than switching between two separate tools when you just need a ballpark answer.
Planning and Comparing Fuel Spend
Car Fuel Cost Calculator
Whether you’re mapping out a road trip or trying to pin down what your commute costs each month, the Car Fuel Cost Calculator takes your distance, MPG, and local gas price and turns them into a total spend. It’s also a practical way to compare two vehicles before buying, since a difference of even a few MPG can mean a real gap in fuel spending once you multiply it out over a year of driving.
Going Electric
Electric Vehicle Range Calculator
An EV’s advertised range comes from standardized testing, and real-world range tends to fall short of that number once you factor in speed, terrain, and how hard the climate control is working — cold weather especially. The Electric Vehicle Range Calculator adjusts for battery health, charge level, driving conditions, and temperature to give you a realistic range estimate, which matters a lot more for trip planning than the optimistic number on the spec sheet.
Electric Car Charging Cost Calculator
Charging costs less than filling a gas tank, but exactly how much less depends on your electricity rate, battery size, and whether you’re charging at home or paying public fast-charging rates. The Electric Car Charging Cost Calculator works out your cost per charge along with weekly, monthly, and yearly totals, and includes a side-by-side comparison against an equivalent gas vehicle so you can see the actual savings rather than a general claim about how much cheaper EVs are to run.
Which One Do You Need Right Now?
- Just filled up and want a quick MPG check? Use the Car MPG Calculator.
- Want your average MPG across multiple fill-ups? Try the Car Fuel Economy Calculator.
- Need MPG and cost together in one pass? The Car Fuel Calculatorcovers both.
- Planning a trip or budgeting your commute? Use the Car Fuel Cost Calculator.
- Wondering how far your EV will really go? Check the Electric Vehicle Range Calculator.
- Curious what charging an EV actually costs? Run the numbers in the Electric Car Charging Cost Calculator.
Fuel is just one piece of what a car costs to keep on the road. If you want the full monthly picture — loan payment, insurance, maintenance, and fuel combined — our Car Insurance & Ownership calculators bring it all together, and our Loan & Financetools cover everything on the financing side.