Skip to content
Calculator Tools
Aviation Calculators

Flight Time Calculator

Flight time from distance and groundspeed, including climb, descent and taxi allowances.

Enter values

Results update as you type.

Result

Block time

3 h 38 min

Time in the air
3 h 28 min
Cruise time
3 h 13 min
In decimal hours
3.631
Distance in km
833.4
Average block speed
123.9 knots

About the Flight Time Calculator

Flight time from distance and groundspeed, including climb, descent and taxi allowances.

Also known as: flight duration calculator, block time calculator, how long is the flight, ete calculator.

How to use this calculator

  1. Enter distance, groundspeed, climb and descent allowance, taxi time.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

time = distance ÷ groundspeed + climb and taxi allowances

Worked example

Using the values pre-filled in the calculator above:

  • Distance = 450 nm
  • Groundspeed = 140 knots
  • Climb and descent allowance = 15 min
  • Taxi time = 10 min

the calculator returns:

  • Block time: 3 h 38 min
  • Time in the air: 3 h 28 min
  • Cruise time: 3 h 13 min
  • In decimal hours: 3.631