Quick guide
How to use this calculator
- Choose the real journey or motion relationship first, then enter only the measurements that belong to that mode.
- Keep every distance, speed, duration, clock, direction, break, reserve, wind, or current convention explicit; the calculator normalizes compatible units internally.
- Use the companion outputs to reconcile the scenario, then retain the stated limits before using an estimate for a real journey.
Calculation method
How the travel time, arrival and departure calculator works
Turn a simple moving-time estimate into a usable clock schedule while keeping pauses and contingency time explicit.
Elapsed journey time = distance ÷ average moving speed + planned breaks + entered buffer. Arrival adds elapsed time to departure; reverse mode subtracts it from the target arrival.
Worked example
Travel Time, Arrival and Departure example
A 240 km journey at 80 km/h with a 30-minute break and 15-minute buffer takes 3 hours 45 minutes; leaving at 08:20 gives a 12:05 arrival.
Elapsed journey time = distance ÷ average moving speed + planned breaks + entered buffer. Arrival adds elapsed time to departure; reverse mode subtracts it from the target arrival.
Supported inputs
Precision and limits
Scenario boundary
Clock arithmetic uses a continuous 24-hour day and reports day offsets. It does not model time zones, daylight-saving changes, live traffic, weather, route closures, mandatory rest law, or an ‘optimal’ departure.
Precision and time
Calculations retain working precision and round durations to the nearest second and clock outputs to the nearest minute. Entered averages and schedules remain assumptions, not live observations or guarantees.
Category ownership
This calculator handles neutral travel, timing, range, or relative-motion arithmetic. Vehicle operating cost and performance belong in Automotive; competition pacing belongs in Sports; time zones belong in Dates & Times; route geography belongs in Travel & Geography; advanced dynamics belong in Engineering & Science.
Privacy
Entered locations are not requested. Entered values and results stay in this browser and are not sent to analytics or third parties.
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