Quarter-mile & 0-60 calculator
Estimate ET, trap speed, and 0-60 from horsepower and weight — using the Hale power-to-weight formulas drag racers have leaned on for decades.
Your estimates
Estimates assume decent traction and a competent launch. Real-world times vary with tires, altitude, and driver. Log a real pull to know for sure.
How the quarter-mile estimate works
This calculator uses the Hale formulas: ET = 6.29 × (weight ÷ HP)⅓ and trap speed = 224 × (HP ÷ weight)⅓. They've been checked against decades of real drag-strip data and land within a couple tenths for most street cars with adequate traction. Heavy boost, slicks, or all-wheel-drive launches can beat the estimate; open diffs and heat soak will miss it.
What actually lowers your ET
Power helps, but the cheapest tenths come from traction and weight: tires first, then launch technique, then mass out of the car. Browse real dyno results and documented builds to see what the parts you're considering actually did for other people's times.
Ran it for real?
Log your dyno pulls and track times on a free build profile — your car's whole story on one link.
- One link for your whole build — bio, forums, group chats
- Mods, costs, and dyno history tracked over time
- Followers, views, and a spot on the rankings
- Print a QR sticker — anyone who scans sees the full story
No credit card. Sixty seconds to set up.