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Copper Tube Size Chart (EN 1057)

Copper tube size chart: EN 1057 plumbing tube from 6 to 267 mm outside diameter with common wall thicknesses, inside diameter and kg/m. Labelled drawing.

For preliminary reference and dimensional comparison. Availability of each size in each temper, tolerances and allowable pressure are not covered. Confirm with the manufacturer's catalogue for ordering and design.

Dimension drawing and symbols

Pipe cross section with dimension symbolsD: Outside diameter. t: Wall thickness. di: Calculated inside diameter.Dtdi
D
Outside diameter mm
t
Wall thickness mm
di
Calculated inside diameter mm

Copper tube is designated by outside diameter × wall thickness, for example 15 × 1. D is the outside diameter, t the wall thickness and dᵢ the calculated inside diameter.

Visible rows: 31

Copper tube sizes and weight chart
Dimensions, mm
DODmmtwalldiIDmasskg/m
6.01.04.00.140
8.01.06.00.196
10.01.08.00.252
12.01.010.00.308
15.00.713.60.280
15.01.013.00.391
18.01.016.00.475
22.00.920.20.531
22.01.020.00.587
28.00.926.20.682
28.01.026.00.755
28.01.225.60.899
28.01.525.01.111
35.01.232.61.134
35.01.532.01.405
42.01.040.01.146
42.01.239.61.369
42.01.539.01.699
54.01.251.61.772
54.01.551.02.202
54.02.050.02.908
64.02.060.03.467
76.11.573.13.129
76.12.072.14.144
88.92.084.94.859
108.01.5105.04.467
108.02.5103.07.374
133.01.5130.05.515
159.02.0155.08.779
219.03.0213.018.118
267.03.0261.022.144

Quick answers

  • 12 × 1 mm copper tube: inside diameter 10 mm, mass 0.308 kg/m. View in table
  • 15 × 1 mm copper tube: inside diameter 13 mm, mass 0.391 kg/m. View in table
  • 18 × 1 mm copper tube: inside diameter 16 mm, mass 0.475 kg/m. View in table
  • 22 × 1 mm copper tube: inside diameter 20 mm, mass 0.587 kg/m. View in table
  • 28 × 1 mm copper tube: inside diameter 26 mm, mass 0.755 kg/m. View in table
  • 35 × 1.5 mm copper tube: inside diameter 32 mm, mass 1.405 kg/m. View in table
  • 42 × 1.5 mm copper tube: inside diameter 39 mm, mass 1.699 kg/m. View in table
  • 54 × 1.5 mm copper tube: inside diameter 51 mm, mass 2.202 kg/m. View in table

Conditions and notes

Seamless copper tubes within EN 1057:2006+A1:2010. Mass is calculated from nominal geometry with a density of 8.9 kg/dm³. Temper R220, R250 or R290 does not change the dimensions.

  • di = D − 2t. Mass per length = 8900 × π × t × (D − t), with D and t in metres. Some manufacturer tables print masses 0.1% to 0.5% higher than this value at large diameters.
  • Thin wall sizes of 0.7, 0.9 and 1.2 mm are common in some countries. For press and soldered joints check that the wall thickness is within the range allowed by the system manufacturer.
  • The table lists only outside diameter and wall pairs found in the charts of at least two separate publishers. EN 1057 defines more sizes.
  • The DN match for copper differs from steel pipe. In press systems DN15 usually corresponds to an 18 mm tube, see the pipe size conversion chart for details.
  • CSV download is unavailable because the sources do not establish permission for reuse.

Outside diameter and wall pairs of EN 1057 copper tube for water, heating and gas found in the charts of at least two publishers. Mass is calculated from geometry with a density of 8.9 kg/dm³.

Sources

This table is for preliminary reference. Check the applicable standard and product conditions before use.

  • Source 1. Version accessed. Accessed: 2026-10-16
  • Source 2. Version accessed. Accessed: 2026-10-16
  • Source 3. Undated numerical table. The referenced edition is stated in the conditions.. Accessed: 2026-10-16
  • Source 4. Undated numerical table. The referenced edition is stated in the conditions.. Accessed: 2026-10-16
  • Source 5. Version accessed. Accessed: 2026-10-16
  • Source 6. Version accessed. Accessed: 2026-10-16
  • Source 7. Version accessed. Accessed: 2026-10-16
  • Source 8. Version accessed. Accessed: 2026-10-16

Data version: 2026-10-16

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