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Engine Horsepower Calculator
Mechanical horsepower adjusted for efficiency.
Choose a horsepower methodEstimate quarter-mile horsepower from elapsed time or finish-line speed.
2 optionsESTIMATED ENGINE HORSEPOWER314.86600691 hp
weight ÷ (elapsed time ÷ 5.825)³. Only inputs needed by this operation are shown.
Estimate based on the values shownFormula checkedQuarter-mile horsepower estimates using established elapsed-time and trap-speed relationships.