What does 3 centimetres look like?

3-Centimetre Distance Comparisons

• 3 centimetres is about 75% of the diameter of a regulation table-tennis ball.

  The comparison uses the published dimension, converted into the same unit before the proportion is calculated.

  Source: International Table Tennis Federation

• For scale, 3 centimetres is about 56% of the short edge of an ISO ID-1 payment card.

  Using the source measurement of 5.4 centimetres, this comparison puts the target at 56% of it.

  Source: International Organization for Standardization

• Measured against the short side of a €5 note, 3 centimetres spans about 48% of that reference.

  The comparison uses the published dimension, converted into the same unit before the proportion is calculated.

  Source: European Central Bank

• For scale, 3 centimetres is about 1.3 times the diameter of a 1-euro coin.

  Using the source measurement of 2.32 centimetres, this comparison puts the target at 1.3 of it.

  Source: European Commission

• Measured against the long side of a €20 note, 3 centimetres spans about 23% of that reference.

  Using the source measurement of 13.3 centimetres, this comparison puts the target at 23% of it.

  Source: European Central Bank

• For scale, 3 centimetres is about 21% of the long side of a €50 note.

  The comparison uses the published dimension, converted into the same unit before the proportion is calculated.

  Source: European Central Bank

• Measured against the long side of a €100 note, 3 centimetres spans about 20% of that reference.

  The comparison uses the published dimension, converted into the same unit before the proportion is calculated.

  Source: European Central Bank

• 3 centimetres is approximately 1.2 inches.

  Using the exact conversion that 1 centimetre equals exactly 0.3937007874 inches, the unrounded result is 1.181 inches.