Quick numbers for the flight deck: when to start down, how strong the crosswind is, roughly how much fuel to load and what approach speed to expect.
Top of descent
Rule of three: 3 nm for every 1,000 ft to lose. Descent rate is about 5 × ground speed for a 3° path. Add a few miles if you need to slow down or have a tailwind.
Crosswind & headwind
Tip: a runway number × 10 is close to its heading (runway 28 ≈ 280°). Check the crosswind against your airline's limit for the conditions.
Fuel & block time (787)
Rough planning only. Uses an average cruise of Mach 0.85 and an average burn of about 5,400 kg/h (787-8) or 5,800 kg/h (787-9), plus taxi, 5% contingency, alternate and a 30-minute final reserve. Always plan the real flight in SimBrief with the Bravoairspace 787 airframes.
Approach speed (Vref)
Estimate for practice. The FMC's APPROACH REF page gives the real Vref for your weight; use that number in the sim. The wind additive follows the common Boeing rule: half the steady headwind plus all of the gust, at least 5 kt and no more than 20 kt.
Unit converter
Type in either box. Jet fuel uses 0.8 kg per litre. A common slip: SimBrief in kg while the aircraft is set to lb (or the other way round) makes the zero fuel weight look wrong.