Know what your car really costs.
No-nonsense calculators for gas, loans, leasing, EVs and ownership. Type your numbers, get one straight answer — then get on with your day.
Fuel & Trips
6 calculatorsGas Cost
What a trip will cost in fuel from distance, MPG, and the price at the pump.
Open →MPG
Your real-world miles per gallon from a tank of gas — plus the metric equivalent.
Open →Road Trip Cost
Total fuel for a long drive, and what each person owes when you split it.
Open →Commute Cost
What your daily drive to work really costs in fuel — per day, month, and year.
Open →Cost Per Mile
Your fuel cost for every mile you drive — and what that adds up to in a year.
Open →Driving Range
How far a full tank takes you, from tank size and MPG.
Open →Buying & Financing
9 calculatorsCar Loan
Monthly payment, total interest, and a year-by-year payoff schedule.
Open →Car Affordability
Work backward from a monthly budget to the car price you can actually finance.
Open →Lease vs Buy
Compare the true cost of leasing against financing the same car over the same years.
Open →Down Payment
Turn a percentage down into the dollar amount, what’s financed, and the monthly payment.
Open →Loan Payoff
How much faster — and cheaper — paying a little extra each month pays off your car loan.
Open →Car Sales Tax
Sales tax and the real out-the-door price, from the sticker, your tax rate, and fees.
Open →Lease Payment
Estimate a monthly lease payment from price, residual, money factor, and term.
Open →Trade-In Equity
Whether your trade-in is worth more than you owe — and what carries to the next car.
Open →Auto Loan Refinance
Compare your current car loan against a new rate to see the monthly savings.
Open →Cost of Ownership
8 calculatorsTotal Cost of Ownership
The real all-in cost of a car: depreciation, fuel, insurance, maintenance, and fees.
Open →Car Depreciation
How much value a car loses each year, and what it’s worth down the road.
Open →Maintenance Cost
A simple yearly and total maintenance budget from your mileage and a per-mile rate.
Open →True Cost Per Mile
The real, all-in cost of every mile — depreciation, fuel, insurance, and maintenance combined.
Open →Car Insurance Cost
Turn a monthly premium into the yearly, five-year, and per-mile cost of insuring your car.
Open →Mileage Reimbursement
What your driven miles are worth at the IRS standard rate — or any rate you set.
Open →Compare Two Cars
Put two cars head to head on total cost — price, depreciation, and running costs.
Open →Repair vs Replace
Whether a repair is worth it, measured against the car’s value and a new-car payment.
Open →EV & Hybrid
6 calculatorsEV Charging Cost
What it costs to charge an electric car at home, per charge and per mile.
Open →EV vs Gas Savings
Annual fuel-vs-electricity cost for your driving, and what you’d save going electric.
Open →EV Range
Estimated driving range from an EV’s battery size and efficiency.
Open →EV Charging Time
How long a charge takes, from battery size, charger power, and the percentage you add.
Open →EV Cost Per Mile
What each mile costs in electricity, from efficiency and your power rate.
Open →Gas vs EV Breakeven
How long it takes for an EV’s fuel savings to pay back its higher purchase price.
Open →Specs & Conversions
6 calculatorsMPG to L/100km Converter
Convert US fuel economy to the metric standard the rest of the world uses.
Open →Tire Size
Compare two tire sizes for overall diameter and the speedometer error a swap causes.
Open →Engine Displacement Converter
Convert engine size between cc, liters, and cubic inches.
Open →Horsepower & Torque
Convert between torque and horsepower at a given RPM (and to kilowatts).
Open →Quarter-Mile
Estimate quarter-mile ET and trap speed from weight and horsepower.
Open →Towing & Payload
Check whether a trailer or load is within your vehicle’s rated capacity.
Open →Enter your numbers
No sign-up, no fluff. Just the few fields that actually move the answer.
See the breakdown
One hero number, plus the figures behind it — updated live as you type.
Decide with confidence
Know the real cost before you sign, fill up, or plug in.
Guides
All guides →Lease vs buy, without the dealer spin
The five numbers that actually decide it — and the ones dealers hope you ignore.
Read →Is an EV cheaper for your commute?
Running the per-mile math on electrons versus gallons.
Read →The 20/4/10 rule, in plain English
A quick gut-check on whether a car fits your budget.
Read →Stop guessing what a car costs
A car’s sticker price is the smallest part of the story. Fuel, financing, insurance, maintenance and depreciation quietly add up to far more than the number on the window — and they’re exactly the figures that are hardest to picture in your head. DriveCompass turns each of those questions into a single, fast calculator that gives you one clear number instead of a spreadsheet.
Every tool runs entirely in your browser — nothing to install, no account, no data leaving your device. Whether you’re pricing a road trip, deciding between leasing and buying, or working out whether an EV really pays off, you’ll get a transparent breakdown you can trust in seconds.