Answer & explanation
The official answer, with Fermi’s reasoning step by step.
Answer & explanation
Official answer
14,000
Rubik's Cubes
How to estimate it
Fermi’s official “Napkin math”
A Cube is a small box on wheels. Fill the whole inside, seats and all, and you have maybe 3,000 litres. A Rubik's Cube is about 6 centimetres a side, so a bit under a fifth of a litre. That is 5 to the litre.
- Interior space
- ~3,000 L
- Rubik's Cubes per litre
- × 5
- 3,000 × 5
- ≈ 15,000
A Cube is a small box on wheels. Fill the whole inside, seats and all, and you have about 110 cubic feet. A Rubik's Cube is a bit over 2 inches a side. How many fit in a cubic foot? They stack neatly, so call it 130.
- Interior space
- ~110 ft³
- Rubik's Cubes per cubic foot
- × 130
- 110 × 130
- ≈ 14,300
Rounded assumptions may give a slightly different estimate. The official answer above is the game’s reference value.
Source calculation & reference
- Nissan Cube total interior volume (passenger 97.7 + cargo 11.4)
- = 109.1 ft³ (3,089 L)
- Volume of one Rubik's Cube (5.7 cm sides)
- ≈ 185 cm³
- Packing efficiency (cubes in an irregular space)
- × 0.85
- 3,089,000 ÷ 185 × 0.85
- ≈ 14,000
Reference cited by Fermi: Nissan Cube interior volume specification and standard 5.7 cm Rubik's Cube dimensions
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