Hours of Service (HOS) Calculator
Enter your day so far and this calculates how many hours you can still legally drive under the FMCSA property-carrying rules — the 11-hour, 14-hour window, 30-minute break, and 60/70-hour limits.
Property-carrying driver limits (FMCSA). Enter your day so far:
Estimate based on federal property-carrying rules. Follow your ELD and company policy — some exceptions (sleeper berth, adverse conditions, short-haul) apply.
📖 New to this? Read CDL Log Books and ELDs Explained.
How to use the Hours of Service (HOS) Calculator
- Enter your hours since coming on duty and driving so far.
- Add your on-duty and weekly hours.
- Click Calculate to see how much you can still drive.
100% free, no sign-up, and it all runs in your browser — your data never leaves your device.
FAQ
What is the 14-hour rule?
After coming on duty following 10 hours off, you cannot drive beyond the 14th consecutive hour — even if you take breaks during that window. Off-duty time does not extend it.
What is the 70-hour/8-day limit?
You cannot drive after 70 hours on duty in 8 consecutive days (or 60 hours in 7 days). A 34-hour restart resets it.