ScaleTrip

Turn a number into a real-world scale.

How far is it?

Compare anything from 1 metre to the diameter of the observable universe.

Lotte World Tower0.55 km

The height of Seoul's slender, curved supertall tower.

Explore the scale
0.55 km

The references just below and above

Nearby references are selected by logarithmic distance, not linear spacing.

How long would this journey take?

Calculated as uninterrupted travel at representative average cruising speeds.

Real travel time varies with route, stops, weather and operating conditions.

Objects move along logarithmic spacing, while size is compressed from the real ratio to remain legible.

Artwork and diagram notes

Object, landmark, planet and cosmic-scale artwork is original AI-generated imagery made for ScaleTrip. Maps use public-domain Natural Earth boundaries. Illustrations stay recognizable through logarithmic visual compression; they are not literal scale drawings.

Turn a distance into a scale you can recognize

ScaleTrip compares your input with 71 human, object, architectural, geographic and astronomical references. It finds nearby references on a logarithmic scale and calculates travel time from the same value.

Comparison range
1 metre to 93 billion light-years
Reference data
71
Display units
m · km · AU · ly

One stop each day

Scale of the Day

12,742 km

How wide is Earth?

ScaleTrip uses 12,742 kilometres as Earth's rounded mean diameter. Diameter is the straight line through Earth's centre from one side of the surface to the other.

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One verified stop from the ScaleTrip library, selected deterministically for today.

How the comparison works

A linear axis cannot keep 1 metre and 100 million kilometres readable on one screen. Positions therefore use logarithmic spacing and object sizes use logarithmic visual compression. The underlying distance calculation is never compressed.

Methodology

Popular distance comparisons

Start with a familiar distance or jump from human scale to planetary scale. Every page opens the same visualizer at a verified value.

  1. What does 100 metres look like?0.1 km
  2. How far is 1 kilometre?1 km
  3. How far is 10 kilometres?10 km
  4. How far is 100 kilometres?100 km
  5. How large is Earth's radius?6,371 km
  6. How Far Is the Moon From Earth?384,400 km
  7. How far is Earth from the Sun?149,600,000 km
View all distances

Check kilometres and miles together

Every visible value follows the selected unit. Use the converter when you only need an exact numeric result.

Converter