If your running the 1/8 mile this calculator provides an accurate elapsed time and speed based on the horsepower and weight of the vehicle. Also see our 1/8 mile calculator with incremental for additional run data.

flywheel horsepowerhorsepower available at the flywheel
weighttotal ready to run weight of vehicle including driver
elapsed time (ET)time to run the full length of the eighth mile
speedtrap speed at the end of the eighth mile
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