Horsepower Calculator
Calculate engine horsepower using torque and RPM, drag racing results, or vehicle weight.
Formula Used
HP = (Torque × RPM) / 5252
Estimated Horsepower
366.5
HP
Kilowatts
273.3 kW
Torque
350 lb-ft
Performance Category
Performance
Comparable to: Ford Mustang GT, Chevrolet Camaro SS
Power Reference
Supercars600+ HP
High performance400-600 HP
Sports cars250-400 HP
Standard vehicles150-250 HP
Economy cars<150 HP
What is Horsepower?
Horsepower (HP) is a unit of power originally defined by James Watt to compare steam engine output to draft horses. One HP equals 745.7 watts or the power to move 550 pounds one foot per second.
Torque vs Horsepower
Torque is rotational force; horsepower is work done over time. Torque gets you moving (acceleration), while horsepower maintains speed. HP = Torque × RPM / 5252.
Measuring Horsepower
Engine dyno measures at the flywheel; chassis dyno measures at the wheels (typically 15-20% less due to drivetrain losses). Factory ratings are engine dyno measurements.