What does 50 centimetres look like?

50-Centimetre Distance Comparisons

• For scale, 50 centimetres is about 66% of the height of a regulation table-tennis table.

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

  Source: International Table Tennis Federation

• Measured against the short side of an A4 sheet, 50 centimetres spans about 2.4 times that reference.

  Its published measurement is 21 centimetres; the ratio is calculated from that figure.

  Source: International Organization for Standardization

• For scale, 50 centimetres is about 16% of the height of a regulation basketball rim.

  Using the source measurement of 305 centimetres, this comparison puts the target at 16% of it.

  Source: FIBA

• 50 centimetres is about 6.5 times the short side of a €50 note.

  Its published measurement is 7.7 centimetres; the ratio is calculated from that figure.

  Source: European Central Bank

• Measured against the short side of a €20 note, 50 centimetres spans about 6.9 times that reference.

  Its published measurement is 7.2 centimetres; the ratio is calculated from that figure.

  Source: European Central Bank

• For scale, 50 centimetres is about 14% of the diameter of the ESO 3.6-metre telescope.

  Using the source measurement of 360 centimetres, this comparison puts the target at 14% of it.

  Source: European Southern Observatory

• For scale, 50 centimetres is about 7.3 times the maximum diameter of a tennis ball.

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

  Source: International Tennis Federation

• 50 centimetres is approximately 19.7 inches.

  Using the exact conversion that 1 centimetre equals exactly 0.3937007874 inches, the unrounded result is 19.685 inches.