Check the clocks before dispatch
HOS Arrival Feasibility Calculator
Compare estimated driving and on-duty time with the driver's remaining drive and duty windows. The result identifies the tighter clock and quantifies the shortfall, while staying explicit that it is a planning estimate rather than an ELD verdict.
- Time
- Takes about 1 minute
- Privacy
- Runs in your browser
- Output
- HOS arrival
Your inputs
Enter the load details
Planning result
Arrival fits the entered HOS clocks
The route needs about 7 hr 27 min of driving and 8 hr 42 min of on-duty window including entered stops and breaks.
- Driving required
- 7 hr 27 min
- Duty window used
- 8 hr 42 min
- Tighter remaining margin
- 33 min
What this means
- 410 mi ÷ 55 mph = 7 hr 27 min driving.
- 7 hr 27 min driving + 45 min non-driving + 30 min breaks = 8 hr 42 min duty-window use.
Assumptions
- Average speed already accounts for traffic, terrain and governed speed.
- The driver starts with the entered clocks and no unentered adverse-condition or split-sleeper adjustments apply.
- This is a feasibility estimate, not an electronic logbook or legal HOS determination. Verify the driver's certified records and applicable rules.
Worked example
See the calculation in plain English.
A 410 mi route at 55 mph needs about 7 hr 27 min driving; with 45 min of stops and a 30 min break it uses about 8 hr 42 min of duty window.
What this tool does not decide
- The calculator does not interpret certified logs, cycle limits, sleeper splits, exceptions or jurisdiction-specific rules.
- Average speed and delays are user-entered estimates.
Common questions
Use the result without guessing.
Is this an ELD or legal HOS verdict?
No. It is a planning check against clocks you enter. Dispatch decisions must use the driver's certified record and applicable rules.
Should the average speed equal the speed limit?
No. Use a realistic route average that includes congestion, grades, urban travel and governed speed.