What does 4 centimetres look like?

4-Centimetre Distance Comparisons

• 4 centimetres is about 33% of the long side of a €5 note.

  Using the source measurement of 12 centimetres, this comparison puts the target at 33% of it.

  Source: European Central Bank

• Measured against the short side of an A6 sheet, 4 centimetres spans about 38% of that reference.

  Using the source measurement of 10.5 centimetres, this comparison puts the target at 38% of it.

  Source: International Organization for Standardization

• 4 centimetres is about 37% of the diameter of a regulation golf hole.

  Using the source measurement of 10.8 centimetres, this comparison puts the target at 37% of it.

  Source: International Tennis Federation

• For scale, 4 centimetres is about 1.7 times the diameter of a 1-euro coin.

  Its published measurement is 2.32 centimetres; the ratio is calculated from that figure.

  Source: European Commission

• Measured against the short edge of an ISO ID-1 payment card, 4 centimetres spans about 74% of that reference.

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

  Source: International Organization for Standardization

• 4 centimetres is about 56% of the short side of a €20 note.

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

  Source: European Central Bank

• For scale, 4 centimetres is about 1.9 times the diameter of a 5-cent euro coin.

  Its published measurement is 2.13 centimetres; the ratio is calculated from that figure.

  Source: European Commission

• 4 centimetres is approximately 1.6 inches.

  Using the exact conversion that 1 centimetre equals exactly 0.3937007874 inches, the unrounded result is 1.575 inches.