Run the numbers on your car.
Fuel, running costs, financing, tires and maintenance. Each tool shows its assumptions, uses official EPA ratings where they exist, and never asks for an email.
Lookups
Fuel & efficiency
Trip costs, real MPG and what an EV would save, using official EPA ratings.
Fuel cost & trip calculator
Trip, monthly and yearly fuel cost from your car’s EPA rating or your own MPG.
MPG calculator
Your real gas mileage from fill-ups, averaged over several tanks.
EV vs gas savings calculator
Charging vs fuel cost per mile and per year, from EPA efficiency ratings.
Running costs
What your car costs per mile, per month and over five years, and what premium fuel adds.
Regular vs premium gas calculator
What premium costs over regular per tank, month and year.
5-year cost of ownership calculator
Fuel, insurance, maintenance, financing and depreciation over 5 years.
Cost per mile calculator
Every car cost divided by the miles you drive.
Buying & financing
Loan payments, lease vs buy, how fast value drops and whether the mileage is normal.
Is this mileage normal?
Compare an odometer reading with typical miles per year for the car’s age.
Car loan payment calculator
Monthly payment, total interest and a yearly payoff schedule.
Lease vs buy calculator
Net cost of leasing vs financing the same car over the same period.
Car depreciation estimator
Value by year from depreciation rates you set. An estimate, not a valuation.
Tires & maintenance
Tire sizes, oil change intervals and a yearly maintenance budget.
Maintenance cost planner
A yearly maintenance budget from intervals and your shop’s prices.
Tire size calculator & comparison
Compare two sizes and decode load index and speed rating.
Oil change interval estimator
A guidance range from your oil type and driving, plus a next-due date.
Need more money calculators?
Our sister site moneydeck.io has auto financing tools like refinance, early payoff, negative equity and sales tax calculators.