Auto Calculators

Turn a monthly payment budget into the car price you can finance, given your rate, term and down payment.

Estimate a monthly car lease payment from the negotiated price, residual value, money factor and term.

Compare the total cost of leasing a car against buying it with a loan over the same period.

See how a car loses value year by year, with a depreciation schedule and the total value lost.

Add up fuel, insurance, maintenance and payments to find what each mile of driving really costs.

Work out the fuel cost and gallons for a single trip from distance, fuel economy and gas price.

Estimate what it costs to charge an electric car from your electricity rate, battery size and charge level.

Compare the yearly fuel cost of a gas car against an electric car and see the annual savings.

Convert a tire spec like 225/45R17 into overall diameter, sidewall height, circumference and revolutions per mile.

Find the axle gear ratio from ring and pinion teeth, plus the engine RPM at a given speed.

Calculate horsepower from torque and RPM with the classic hp = torque × RPM ÷ 5252 formula.

Calculate miles per gallon from miles driven and gallons used, plus cost per mile and yearly fuel cost.