Use this free online calculator to convert Shackle to Pica instantly. This all length conversions conversion tool provides accurate results for all your measurement needs.

Quick Reference

1 Shackle = 6504.30 Pica

1 Pica = 1.537e-4 Shackle

Shackle to Pica Conversion Formula

To convert Shackle to Pica, multiply by 6504.30.

Pica = Shackle × 6504.30

Shackle = Pica × 1.537e-4

To convert Pica back to Shackle, divide by 6504.30 (or multiply by 1.537e-4).

About These Units

About Shackle

The shackle is a traditional unit of length used for measuring the lengths of nautical cables and chains, especially anchor chains. Anchor chains are formed by using shackles to join short lengths of chain. When the anchor is dropped and the chain runs out, a seaman counting the number of shackles can report the total length of chain deployed. The size of the unit therefore varied somewhat, depending on the length of the short chains used. In Britain, the unit became standardized in the 16th century at 12.5 fathoms (75 feet or 22.86 meters). In 1949, the Royal Navy adopted a length of 15 fathoms, which is 90 feet or 27.432 meters; this brought the British shackle in line with the U.S. unit, which is usually called the shot.

About Pica

Unit of measure, approximately 1/6 of an inch, used in graphic arts. Twelve points make one pica.

Shackle to Pica Conversion Table

Shackle	Pica	Pica	Shackle
0.1	650.4300	0.1	1.537e-5
0.5	3252.15	0.5	7.687e-5
1	6504.30	1	1.537e-4
2	13008.60	2	3.075e-4
5	32521.50	5	7.687e-4
10	65043.00	10	1.537e-3
20	130086.00	20	3.075e-3
25	162607.50	25	3.844e-3
50	325215.00	50	7.687e-3
100	650430.01	100	0.015374
250	1626075.02	250	0.038436
500	3252150.03	500	0.076872
1000	6504300.07	1000	0.153744

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