Automotive Calculators

Automotive calculators and converters for estimating horsepower, fuel use, quarter-mile times, and much more.

The LRFIX Car Loan Payment Calculator will estimate monthly and bi-weekly payments based on loan amount, interest rate, and loan term.

The LRFIX Piston Valve Clearance Calculator determines the clearance between the piston and valve to avoid interference.

The LRFIX Piston Speed Calculator determines piston speed using stroke length and RPM for engine performance analysis.

The LRFIX Fuel Consumption Calculator determines fuel efficiency based on distance traveled and fuel used.

The LRFIX Horsepower Calculator calculates horsepower using torque and RPM values to estimate engine performance.

The LRFIX 1/4 Mile ET Calculator computes a vehicle's quarter-mile time based on horsepower and weight, outputting the time in seconds.

The LRFIX Compression Ratio Calculator calculates the ratio of an engine's cylinder volume at bottom dead center to top dead center.

The LRFIX Engine Displacement Calculator calculates engine size based on cylinder measurements in metric or US units.

The LRFIX Minutes to Decimal Hours Calculator converts minutes into decimal hours for time tracking.

The LRFIX 90 Days From Today Calculator finds the date that is 90 days ahead from the current date.

The LRFIX Inch to Foot Pound Calculator converts torque measurements from inch-pounds to foot-pounds.

The LRFIX 2-Cycle Oil Mix Calculator finds the correct oil-to-gas ratio for 2-cycle engines, showing how much oil to add to fuel.

The LRFIX CC to HP Calculator converts cubic centimeters to horsepower, estimating engine power output.