Flight Carbon Offset Calculator

Calculate CO2 emissions from flights and see how many trees you'd need to offset them

Flight Distance (km)

JHB-London: ~9,000km

Round Trip

Class

Passengers

CO2 Emissions (kg)

CO2 (tonnes)

Trees to Offset

Driving Equivalent

// Emissions by Class

Business class emits ~3x economy (more space per passenger). First class can be 4x. Choose economy when possible — it's the greenest option per person.

// Common Routes

JHB-Cape Town: ~250kg CO2. JHB-London: ~2,500kg. JHB-New York: ~2,800kg. A single long-haul flight can equal months of driving.

// Tree Math

A mature tree absorbs ~22kg CO2/year. Offsetting one JHB-London return flight requires ~227 trees growing for a full year. Planting trees helps but isn't a complete solution.

// Reduce Impact

Fly direct (takeoff/landing use the most fuel). Choose newer aircraft. Fly economy. Consider trains for shorter routes. Offset through certified programmes.