Twine Size Chart # to Metric to Imperial

Tarred Line

Line Size Chart

Have you ever wondered what size cordage is when it is prefixed with say #4? Below is a chart that shows the the conversion of twisted Twine Size # to Metric to Imperial:

Twine Size Diameter mm Diameter Inches Feet per Pound
Approximately
# 4 0.66 .026 5700
# 5 0.75 .030 4200
# 6 0.85 .033 3480
# 7 0.92 .036 3100
# 9 1.07 .042 2050
# 12 1.20 .047 1795
# 15 1.32 .052 1470
# 18 1.52 .060 1065
# 21 1.70 .067 825
# 24 1.85 .073 705
# 30 1.98 .078 625
# 36 2.16 .085 540
# 42 2.35 .092 475
# 60 2.95 .116 305
# 72 3.17 .125 270

Personally I love this tarred line (twisted) but you may like braided. Braided may have a different chart, so do check!

Tarred Line
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When Purchasing, double check line size to ensure that you are getting the correct size you want to work with.
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Comments

Twine Size Chart # to Metric to Imperial — 1 Comment

  1. Can you please tell me what size twine I should be using for a three strand twisted 1/2″ anchor line?

    Thank you

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