It does not measure anyone's blood alcohol level or say who is safe to drive.
Planning worksheet
Understand the numbers, then plan the ride.
Read how alcohol affects driving ability and why a planned ride home is the safest choice for the whole group.
A quick tip
Why estimates fall short.
No calculator can tell you when someone is safe to drive. The reliable answer is a ride that is already arranged.
Colorado sets its own limits and penalties, so read the current law.
A planned ride is the safe answer, not a number.
Denver tip
Colorado’s limits are lower than many expect.
In Colorado, driving with a blood alcohol content of 0.05 or more can bring an impaired-driving charge, and 0.08 is the DUI level. No calculator can tell you when you are safe to drive. Plan a sober driver or a ride before the first drink.
Denver Party Ride customer trends
Useful context while you fill this in.
Denver Party Ride customer inquiries show a few patterns worth keeping in mind as you organize the details.
requests with a pickup time asked for a 4 to 7 p.m. start
of dated inquiries were for a Friday or Saturday event
Denver Party Ride proprietary information. Based on Denver Party Ride quote requests from June 2025 through October 2026.
Helpful answers
BAC and Impaired-Driving Safety Guide questions
Can I use this to know if I am legal to drive?
No. This page deliberately does not estimate BAC or declare anyone safe or legal to drive. Use a sober driver or another ride plan when alcohol or impairment may be involved.
Does this send my answers anywhere?
No. Calculation stays in your browser. It does not create a booking or lead.
Call, text, or start online
Ready to turn the worksheet into a quote request?
Call 303-536-7879Text trip details
Have the date, passenger count, route, and timing ready. Call, text, or use the form at the top of the page.