Jet Lag Calculator
Estimate how many days your body clock needs after a flight, from the UTC offsets at both ends: about 1 hour per day eastward and 1.5 hours westward.
Flights and Air Travel
5 tools
Which Flights and Air Travel tool do you need?
| Tool | What it answers |
|---|---|
| Flight Distance Calculator | Flight distance is measured along the great circle, the shortest path over the Earth's surface. |
| Flight Time Between Cities | Flight time is roughly the great-circle distance divided by the aircraft's average speed, plus about 30 minutes for taxi, climb and approach. |
| Flight Time Calculator | Flight time is roughly distance divided by cruise speed, plus time on the ground and in climb and descent. |
| Jet Lag Calculator | Jet lag lasts roughly one day per time zone crossed when flying east and about two-thirds of a day per zone flying west. |
| Layover Calculator | A layover is the onward departure time minus the arrival time, both in the connecting airport's local time. |
All tools
Flight Time Between Cities
Estimate flight time between 28 major cities or any two coordinates from the great-circle distance, an average speed and a taxi and climb allowance.
Flight Distance Calculator
Great-circle distance between 26 major airports or any coordinates, in kilometres, statute and nautical miles, with initial heading and a rough flight time.
Layover Calculator
Work out the time between landing and your onward departure, including overnight connections, and compare it with the airport's minimum connection time.
Flight Time Calculator
Estimate how long a flight takes from distance and cruise speed in km, miles or nautical miles, with an allowance for taxi, climb and approach time.