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Haul Math

Before you take the load

Hours of Service Calculator

Your 11-hour, 14-hour, break, and 60/70-hour clocks for property-carrying drivers, worked out from where you are right now.

Planning tool, not your logbook. Your ELD record is what counts at a roadside inspection. This is not legal advice. Check the rules in 49 CFR Part 395 and any exemption your carrier uses.

Your clocks right now

On duty after 10+ hours off.

24-hour clock.

7.5 means 7 hours 30 minutes.

Driving hours since you last stopped driving for 30 minutes in a row (off duty, sleeper, or on duty not driving). Same as above if you haven't stopped.

On-duty hours in the last 8 days
On-duty hours each day (driving + on duty not driving)

Only for snow, ice, fog, or unusual road or traffic conditions you couldn't have known about before the shift. It extends the 11 and the 14 to finish the run or reach a safe place.

Your result

Enter your shift and tap "Calculate my hours". Example numbers are already filled in.

Sleeper berth split check

Check whether two rest periods pair up under the split rule (one of at least 7 hours in the sleeper, the other at least 2 hours, 10 or more in total), and how much driving and window you have after the second one.

Before the first rest

From coming on duty to the rest.

First rest
Between the rests
Second rest

Your result

Enter your two rest periods and tap "Check my split". A 7/3 example is filled in.

How this calculator works

These are the federal limits for drivers of property-carrying trucks in 49 CFR 395.3, as this calculator applies them:

  • 11-hour driving limit. After 10 consecutive hours off duty, you can drive up to 11 hours.
  • 14-hour window. You can't drive after the 14th hour since you came on duty. Breaks and off-duty time don't stop this clock. Only a qualifying sleeper berth split does.
  • 30-minute break. You can't drive once you have 8 hours of driving without a 30-minute interruption in driving. The 30 minutes must be in a row, and off duty, sleeper berth, or on duty not driving time counts, alone or mixed.
  • 60/70-hour limit. No driving after 60 hours on duty in 7 days, or 70 hours in 8 days if your carrier runs every day. Each midnight the oldest day drops out, and its hours come back. That's the recap.
  • 34-hour restart. 34 or more consecutive hours off duty starts a new 7/8-day period with the full 60 or 70 hours.
  • Adverse driving conditions. If weather or road conditions you couldn't have known about keep you from finishing within the limits, you may drive up to 2 more hours (49 CFR 395.1(b)(1)). The calculator adds it to both the 11 and the 14 when you tick the box.

Sleeper berth split

Instead of 10 hours in one piece, you can pair two rests (49 CFR 395.1(g)): one at least 7 hours in a row in the sleeper berth, the other at least 2 hours in the sleeper or off duty, adding up to at least 10. Common pairs are 7/3 and 8/2. Driving before and after each rest must add up to no more than 11 hours, and the qualifying rests don't count against the 14-hour window. Your clocks are recalculated from the end of the first rest.

Short-haul drivers, drivers with other exceptions in 395.1, and passenger carriers follow different rules that this calculator doesn't cover.