Convert Fathom to Yard (ftmyd)

The fathom is the traditional marine depth unit, equal to six feet, used in nautical charts and diving manuals.

2
1 ftm2 ydNIST · BIPM accuracy

Fathom to Yard Conversion Table

10 common values
FathomYard
1 ftm2 yd
5 ftm10 yd
10 ftm20 yd
25 ftm50 yd
50 ftm100 yd
100 ftm200 yd
250 ftm500 yd
500 ftm1,000 yd
1,000 ftm2,000 yd
5,000 ftm10,000 yd

How to Convert Fathom to Yard Manually

Step by Step

Converting fathoms to yards is straightforward: multiply by the conversion factor. Follow these three steps to do it by hand or in your head.

  1. 1
    Take your value in fathoms
    Start with the number of fathoms (ftm) you want to convert.
  2. 2
    Multiply by 2
    The conversion factor from ftm to yd is 2. Multiply your value by this number.
  3. 3
    Read the result in yards
    The result is your value in yards (yd).
Practical Examples
1 ftm
equals
2 yd
5 ftm
equals
10 yd
10 ftm
equals
20 yd
25 ftm
equals
50 yd
100 ftm
equals
200 yd

Formula

Multiply the value in fathoms by 2. For the reverse direction, multiply by 0.5.

Forwardyd = ftm × 2
Reverseftm = yd × 0.5
Example: 10 ftm × 2 = 20 yd

Tips

Use these in everyday conversions
  • 1 fathom = 2 yards = 6 feet = 1.8288 m.
  • Modern charts use metres internationally; fathoms are mostly historical.
  • The word "fathom" comes from Old English for "outstretched arms" — originally the span of an adult's arms.

Common Mistakes

Avoid these
  • Reading a modern chart that uses metres as if it were fathoms — a factor-of-1.83 depth error.
  • Confusing fathoms with feet on mixed-unit charts.
  • Assuming all US charts still use fathoms — NOAA has largely migrated to metres.

About Fathom and Yard

What is the Fathom?

The fathom equals exactly 1.8288 meters or 6 feet and is the traditional marine depth unit. The word derives from the Old English 'fæðm,' meaning the span of outstretched arms — historically the distance a sailor could measure rope by stretching it from fingertip to fingertip. Used since antiquity for sounding water depth (lowering a weighted line and counting fathom marks), the fathom remains common in nautical charts, diving manuals, and marine literature. Famous from Mark Twain's pen name (a riverboat lead's call meaning 'safe water,' 2 fathoms or 12 feet) and Shakespeare's 'full fathom five,' the unit retains cultural resonance. Modern oceanographic science prefers the meter, but the fathom persists in fishing, recreational diving, and historical maritime contexts. The fathom relates to the foot (1 fathom = 6 ft) and the yard (1 fathom = 2 yd).

  • Water depth on older US nautical charts
  • Maritime literature and historical navigation
  • Sport diving and scuba depth references in the US
Real-world examples

A "mark twain" reading — made famous by the Mississippi riverboats — meant 2 fathoms (3.66 m) of water, the minimum safe depth.

What is the Yard?

The yard equals exactly 0.9144 meters or 3 feet (36 inches), as defined by the international yard agreement of 1959. Its origins trace to ancient measurement systems based on the human body — historically said to be the distance from a king's nose to his outstretched fingertips. The yard is the standard length unit in American football (where the field is 100 yards long) and British cricket (the pitch is 22 yards). It is also widely used for fabric, carpet, and small landscaping projects in the United States and the United Kingdom. The yard relates to the meter (1 yd ≈ 0.914 m), the foot (1 yd = 3 ft), and the inch (1 yd = 36 in). Despite metric adoption in many fields, the yard remains entrenched in Anglo-Saxon sports and domestic measurements.

  • American football field (100 yards end-to-end)
  • Cricket pitch length (22 yards, one chain)
  • Fabric and carpeting sold by the yard in the US and UK
Real-world examples

An NFL football field is 100 yards = 91.44 metres. A cricket pitch is 22 yards = 20.12 metres.

Learn About Both Units

📏 Reference

What is the Fathom?

Read the unit page →
📏 Reference

What is the Yard?

Read the unit page →

Fathom to Yard FAQ

5 questions
How many yards in a fathom?
One fathom equals 2 yards.
How do I convert fathoms to yards?
Multiply the fathom value by 2 to get the equivalent in yards.
What is 100 fathoms in yards?
100 fathoms equals 200 yards.
Is a fathom bigger than a yard?
Yes. 1 fathom equals 2 yards, so one fathom is larger.
How to convert fathoms to yards without a calculator?
Multiply by 2 for a quick estimate; use a calculator for precise results.

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