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Seat Revenue Per Kilometre Calculator

Work out seat revenue per kilometre instantly with clear inputs, formula shown and shareable results.

About Seat Revenue Per Kilometre Calculator

Yield is revenue divided by revenue passenger kilometres (passengers times distance), while RASK divides the same revenue by available seat kilometres (seats times distance). Yield measures pricing power; RASK folds in how full the aircraft was and is the figure that must beat CASK for the sector to make money.

Formula

Airline revenue metrics

Yield = revenue / (pax x km); RASK = revenue / (seats x km)

Worked example

With the default values below, Seat Revenue Per Kilometre Calculator returns Revenue per passenger kilometre (yield) of $0.1957. Change any input above and every figure here is recalculated in your browser.

Inputs used

Passenger revenue for the sector
42,000
Passengers carried
148 pax
Sector distance
1,450 km
Seats available
180 seats

Results

Revenue per passenger kilometre (yield)
$0.1957
Revenue per available seat kilometre
$0.1609
Revenue passenger kilometres
214,600 pax-km
Average fare per passenger
$283.78

Step by step

  1. 1Values used
  2. 2Airline revenue metrics
  3. 3Revenue per passenger kilometre (yield)= 0.1957 per pax-km
  4. 4Revenue per available seat kilometre= 0.1609 per ASK
  5. 5Revenue passenger kilometres= 214,600 pax-km
  6. 6Average fare per passenger= 283.78

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Why does long haul show lower yield?

Fares do not rise linearly with distance, so revenue per kilometre falls on long sectors even though total fare is higher.

Which metric should I track?

RASK against CASK. A rising yield with a falling load factor can still leave RASK below cost.

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