DOT hours-of-service calculator
Last checked against official sources: (ecfr.gov; ecfr.gov; govinfo.gov)
Enter off-duty rest, on-duty and driving hours from your log, and your 7- or 8-day on-duty total. See remaining capacity under federal property-carrier rules.
This tool applies 49 CFR § 395.3 limits for property-carrying commercial motor vehicles. It does not model passenger rules, short-haul exceptions, adverse driving conditions, or sleeper-berth splits. Always follow your ELD and carrier policy.
Property carriers only. Enter hours from your ELD or paper log. Short-haul exceptions, passenger rules, and adverse driving extensions are not calculated.
Property-carrying CMV limits under 49 CFR § 395.3 and 49 CFR Part 395 (sources checked 11 November 2026). eCFR: “Start of work shift. A driver may not drive without first taking 10 consecutive hours off duty;” “14-hour period. A driver may not drive after a period of 14 consecutive hours after coming on-duty following 10 consecutive hours off-duty.” “Driving time. A driver may drive a total of 11 hours during the period specified in paragraph (a)(2) of this section.” “Except for drivers who qualify for either of the short-haul exceptions in § 395.1(e)(1) or (2), driving is not permitted if more than 8 hours of driving time have passed without at least a consecutive 30-minute interruption in driving status.” “Having been on duty 60 hours in any period of 7 consecutive days if the employing motor carrier does not operate commercial motor vehicles every day of the week; or” “Having been on duty 70 hours in any period of 8 consecutive days if the employing motor carrier operates commercial motor vehicles every day of the week.” “Any period of 7 consecutive days may end with the beginning of an off-duty period of 34 or more consecutive hours.” FMCSA summary: Hours of Service regulations. Passenger, short-haul, adverse weather, and sleeper-berth rules are not modeled here. Not legal advice.
Current shift
Weekly cycle
Limits snapshot
May drive now (if other rules apply)| Limit | Used (h) | Remaining (h) |
|---|---|---|
| 11-hour driving limit | 0.00 | 11.00 |
| 14-hour on-duty window | 0.00 | 14.00 |
| Driving before 30-minute break | 0.00 | 8.00 |
| 70-hour / 8-day on-duty limit | 0.00 | 70.00 |
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FAQ
- What limits does 49 CFR § 395.3 set for property carriers?
- After at least 10 consecutive hours off duty, a driver may not drive beyond 14 consecutive on-duty hours and may drive at most 11 hours in that window. Driving must stop if more than 8 hours of driving pass without a consecutive 30-minute break from driving (unless a short-haul exception applies). Drivers also may not drive after 60 on-duty hours in 7 days or 70 on-duty hours in 8 days, depending on how the carrier operates.
- Does this replace my ELD or FMCSA log?
- No. HourPunch runs in your browser and does not connect to ELDs. Use it to sanity-check remaining hours from numbers you enter; official records and enforcement follow your registered ELD and 49 CFR Part 395 recordkeeping rules.
- What is a 34-hour restart?
- Under § 395.3(c), a 7- or 8-day on-duty period can reset after at least 34 consecutive hours off duty. Check the restart box here only if that break is complete and you want the weekly on-duty total treated as zero for this estimate.