• VinFast VF8 Charging Time Calculator
    Estimate how long it takes to charge a VinFast VF8 EV. Enter battery size, charger power, start/target percent, and efficiency to get the charge time.
  • VinFast EV vs Gas Savings Calculator
    Compare the annual fuel cost of a VinFast EV against a gas car. Estimate yearly, monthly and 5-year savings from your miles, MPG, gas and electricity prices.
  • VinFast EV Range Calculator
    Estimate the driving range of your VinFast EV from battery capacity, state of charge, and energy consumption. Get range in miles and kilometers instantly.
  • Gas vs Electric Car Savings Calculator
    Compare annual fuel costs of a gas car vs an electric car. Enter mileage, gas price, MPG, electricity price and miles/kWh to see your yearly savings.
  • Speedometer Error Calculator
    Calculate true vs indicated speed after changing tire size. Find how much your speedometer is off when you fit larger or smaller diameter tires.
  • Tire Diameter from Tire Size Calculator
    Calculate overall tire diameter from a tire size (e.g. 225/45R17). Enter section width, aspect ratio and rim size to get diameter, sidewall and circumference.
  • 2-Stroke Fuel Oil Mix Calculator
    Calculate the exact 2-stroke oil to add to your gas for any ratio (50:1, 40:1, 32:1). Enter fuel volume in liters or gallons to get mL and fl oz.
  • Trip Fuel Cost Calculator
    Estimate the fuel cost of any road trip. Enter distance, MPG and fuel price to get total gas cost and gallons needed instantly.
  • Tire Pressure Temperature Calculator
    Calculate how tire pressure (PSI) changes with temperature using the ideal gas law. Enter your current PSI and temperatures to find the new pressure.
  • Engine Displacement Volume Calculator
    Calculate total engine displacement from bore, stroke and cylinder count. Get results in cc, liters and cubic inches instantly with this free tool.
  • Car Sales Tax Calculator (US)
    Estimate US car sales tax. Enter vehicle price, trade-in, rebate, and your state+local rate to see tax owed and total out-the-door cost.
  • Home EV Charging Cost Calculator
    Estimate the cost of charging your electric vehicle at home. Enter miles driven, efficiency (mi/kWh) and your electricity rate to see total cost and cost per mile.
  • EV Charging Time Calculator
    Estimate how long it takes to charge your electric vehicle from your battery size, charger power, start/target charge level and efficiency.
  • EV Cost Per Mile Calculator
    Calculate your electric vehicle's energy cost per mile from your electricity price and the EV's kWh consumption per 100 miles.
  • Miles Per Gallon (MPG) Calculator
    Free MPG calculator: enter miles driven and gallons used to find your car's miles per gallon fuel economy, plus the L/100 km equivalent.
  • Auto Loan Payment Calculator
    Estimate your monthly car payment, total interest, and amount financed from vehicle price, down payment, trade-in, sales tax, APR, and loan term (US).
  • Lease vs Buy Calculator
    Compare leasing vs buying a car. Enter down payments, monthly payments, term, and resale value to see total cost and which option is cheaper.
  • Lease Payment Calculator
    Estimate your monthly car lease payment (US) from cap cost, residual value, term, money factor and sales tax, with a depreciation and finance breakdown.
  • US Gasoline Tax Calculator
    Estimate the federal and state gasoline excise tax (US) on your fuel purchase. Enter gallons and per-gallon rates to see total tax paid.
  • EV CO₂ Savings Calculator
    Calculate the CO₂ emissions saved per year by driving an electric vehicle instead of a gasoline car, accounting for your local electricity grid intensity.
  • EV Battery Range Calculator
    Estimate your electric vehicle's driving range from battery capacity, usable fraction and energy consumption per km. Results in km and miles.
  • Gas Mileage / Fuel Economy Calculator
    Calculate gas mileage and fuel economy in MPG (US), MPG (Imperial), km/L and L/100km from distance and fuel used, plus trip fuel cost.
  • How Much Car Can I Afford? (Car Affordability Calculator)
    Find the max car price you can afford from a target monthly payment, loan term, APR, sales tax, down payment and trade-in. US sales-tax model.
  • Car Loan Payment Calculator
    Estimate your monthly car loan payment from price, sales tax, down payment, trade-in, term and interest rate. See total interest and financed amount.