29+ 1/8Th Mile Time Calculator. Input et value, choose conversion type, & get instant results! Estimate 1/4 mile times with the 1/4 mile to 1/8 mile time calculator.
Enter your 1/4 mile elapsed time (et) in the first input field, and. This calculator is for a 1:1 final drive. Rear wheel hp is assuming a 10% drive train loss.





