Convert mechanical horsepower (hp), metric horsepower (PS), brake horsepower (BHP), and kilowatts (kW) with wheel horsepower (WHP) loss.

Calculate vehicle speed (MPH/km/h) from engine RPM, transmission gear ratios, final drive differential, and tire diameter with shift drop analysis.

Calculate fuel economy in Miles Per Gallon (MPG US / UK), Liters per 100km (L/100km), and km/L with trip fuel cost analysis.

Calculate real-world electric car highway range based on speed (65 vs 75 vs 85 mph), freezing winter temperatures, cabin HVAC, and elevation change.

Compare EV charging costs against gasoline vehicle fuel expenses, annual dollar savings, 5-year total cost of ownership, and maintenance benefits.

Calculate electric vehicle charging time, range added per hour, kWh required, and charging costs across Level 1, Level 2, and DC Fast Chargers.

Estimate electric vehicle lithium-ion battery State of Health (SOH %), calendar aging, cycle degradation (NMC vs LFP), and remaining range over 10 years.

Calculate required fuel injector flow rate (lb/hr and cc/min), max safe duty cycle (80-85%), fuel rail pressure adjustments, and pump LPH for gasoline and E85.

Calculate engine displacement in cubic centimeters (cc), liters (L), and cubic inches (CID) from cylinder bore, stroke, and cylinder count.

Calculate EV charging session cost across Level 1, Level 2 home, and DC fast chargers. Compare cost-per-mile against gasoline and estimate monthly electric bill impact.