HOS Availability Calculator
Know Your Hours Before You Roll. Calculate your remaining driving time, on-duty window, and weekly cycle hours in seconds. Based on 49 CFR Part 395.
Enter Your Hours
Hours driven since your last 10-consecutive-hour off-duty period. Max 11 hrs under 49 CFR § 395.3(a)(1).
Total on-duty time — pre-trip, fueling, loading, waiting, and driving. Max 14-hr window under 49 CFR § 395.3(a)(2).
49 CFR § 395.3(b): 60 hrs/7-day for non-daily operators; 70 hrs/8-day for carriers operating every day.
Total on-duty hours in your current 7 or 8-day cycle. Visible on your ELD device.
After 8 cumulative driving hours without a 30-min break, you must stop under 49 CFR § 395.3(a)(3)(ii).
Your Results
Fill in your hours to see your remaining availability.
Disclaimer: This calculator provides estimates based on standard HOS rules under 49 CFR Part 395. It does not account for all exemptions (sleeper berth split, short-haul, adverse conditions, agricultural, oilfield) or all on-duty time calculation methods. Always verify your HOS status with your ELD. This tool is for informational purposes only and does not constitute legal or compliance advice.
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