How many times around the Earth have you flown?

The Earth measures 40,075 km around the equator. It is a number worth holding onto, because it turns an abstract total — "I have flown about 180,000 km" — into something you can actually picture.

180,000 km is four and a half laps of the planet.

Working out your own number

You need three things: a list of your flights, the great circle distance of each, and the patience to add them up.

The first is the hard part. Most people can recall the last two or three years and then it gets murky. Old boarding passes, calendar entries, photo metadata and email receipts are all better sources than memory — we wrote a whole piece on reconstructing a logbook from scratch if you want to go back properly.

The second is mechanical. Great circle distance between two airports is a fixed number; you can look it up or compute it. A few reference points to calibrate against:

The third is where it gets interesting.

The thresholds

Once you have a total, these are the numbers that mean something:

40,075 km — one lap. The equatorial circumference. Around six London–Singapore returns, or fourteen transatlantic crossings. A single year of moderate business travel will do it.

100,000 km — two and a half laps. The point at which travel has stopped being occasional. Roughly two years of consistent long-haul.

384,400 km — Earth to the Moon. The mean distance to the Moon, and a genuinely hard milestone: nine and a half times around the planet. Reaching it requires either a decade of heavy flying or a career that involves being somewhere else most weeks.

1,600,000 km — a million miles. Forty laps. The threshold most airline loyalty programmes treat as their lifetime tier, and a number very few people reach.

Why the total surprises people

Two reasons.

The first is that short flights feel disproportionately significant. A weekend in Barcelona involves airports, security, boarding, and the whole apparatus of flying — and contributes 2,200 km return. A single London–Singapore return contributes ten times that, for not much more inconvenience.

The second is that distance compounds silently. Nobody adds up as they go. The number just sits there, unrecorded, until something forces the sum — and then it turns out to be four laps of the planet.

That is genuinely most of the appeal of keeping a logbook. Not the individual entries, which are mundane, but the total, which is not.

What it looks like on a globe

There is a difference between reading "184,000 km" and seeing it.

When flights are drawn as arcs on a sphere, the total becomes shape rather than number. You can see which parts of the world you keep returning to, which hemispheres you have barely touched, and the specific handful of long-hauls that account for most of the distance. Most people's globes are lopsided in a way they had not realised — a dense knot over one continent and a couple of long threads reaching out from it.

Orbit draws exactly this, and tells you your lap count as you go: "7.1× around Earth", updating as you add flights. The Around Earth badge unlocks at 40,075 km and Moonshot at 384,400 km — both real distances, neither adjustable.

Start with one flight

The useful thing about this sum is that it does not require completeness to be interesting. Add the ten flights you remember clearly and you will already have a number, and that number will already be larger than you expected.

The rest can come later, whenever a photo or an old email jogs something loose.

Orbit computes great circle distance automatically from 8,801 airports and keeps the running total for you. Download now.