How many leagues is 1 fathom?

One fathom equals approximately 0.000379 leagues (1/2,640 of an English league). A league contains about 2,640 fathoms.

How many fathoms are in 1 league?

One English league (3 statute miles / 15,840 feet) contains approximately 2,640 fathoms (15,840 / 6 = 2,640).

Did Verne measure in fathoms or leagues?

Verne used leagues for horizontal submarine travel distance, not depth. The title refers to 20,000 leagues of distance traveled, not depth. The submarine in the novel operated at a few hundred fathoms depth.

Fathoms to Leagues (ftm to lea) Converter

1 ftm = 0.0004 lea

1 Fathom equals 0.0004 Leagues (1 ftm = 0.0004 lea). Convert Fathoms to Leagues with formula, table, and examples.

One fathom equals approximately 0.000379 leagues (English league of 3 miles). A league contains about 2,640 fathoms. Jules Verne's 'twenty thousand leagues' of horizontal submarine travel would equal about 52.8 million fathoms of depth if measured vertically. Fathoms measure depth; leagues measure literary distance.

How to Convert Fathoms to Leagues

lea = ftm ÷ 2,640

Divide the value in Fathoms by 2,640

Take your value in Fathoms
Divide by 2,640
Read the result in Leagues

Common Fathoms to Leagues Conversions

Fathoms (ftm)	Leagues (lea)	Status
1 ftm	0.0004 lea
10 ftm	0.0038 lea
50 ftm	0.0189 lea
100 ftm	0.0379 lea
500 ftm	0.1894 lea
1,000 ftm	0.3788 lea
5,000 ftm	1.8939 lea
6,000 ftm	2.2727 lea
10,000 ftm	3.7879 lea
50,000 ftm	18.9394 lea

Good to Know About Fathoms to Leagues Conversion

Verne's title is often misunderstood as referring to depth. But 20,000 leagues (60,000 miles) of depth would extend well past the center of the Earth. Verne meant distance traveled horizontally beneath the waves, at depths of only a few hundred fathoms.

Fathoms to Leagues: What You Need to Know

Verne's twenty thousand leagues (60,000 miles) equals about 52.8 million fathoms. The entire ocean at its deepest point (6,011 fathoms) is only about 2.28 leagues deep. The league is a horizontal distance unit; the fathom is primarily a vertical one. Pairing them requires imagining depth as distance.

What is a Fathom? ftm

Exactly 6 feet (1.8288 m). Traditionally used to measure water depth in nautical contexts. Originally based on the span of outstretched arms.

Imperial water depth nautical marine charts

Learn more about Fathom →

What is a League? lea

Exactly 3 statute miles (4828.032 m). A historical unit of distance, often associated with the distance a person could walk in one hour.

Imperial historical literature

Learn more about League →

Going the other way? Use our Leagues to Fathoms converter.

Fathoms to Leagues FAQ

One fathom equals approximately 0.000379 leagues (1/2,640 of an English league). A league contains about 2,640 fathoms.
One English league (3 statute miles / 15,840 feet) contains approximately 2,640 fathoms (15,840 / 6 = 2,640).
Verne used leagues for horizontal submarine travel distance, not depth. The title refers to 20,000 leagues of distance traveled, not depth. The submarine in the novel operated at a few hundred fathoms depth.

Non-Frequently Asked Questions About Fathoms to Leagues

Questions nobody should ask - but someone did.

No. Verne used leagues for horizontal travel distance and meters for depth. If the Nautilus had dived to 4 leagues of depth (19.3 km), it would be nearly twice the depth of the Mariana Trench. Even Verne knew that was too deep for fiction.
About 2.27 leagues (6,011 fathoms / 2,640 fathoms per league). The entire ocean at its deepest is barely 2 leagues. Verne's 20,000 leagues was horizontal distance. Vertically, 20,000 leagues would punch through the Earth's core multiple times.
A distance. Verne's '20,000 Leagues Under the Seas' describes the total distance the Nautilus traveled while submerged, not its depth. The subtitle in French ('Vingt mille lieues sous les mers') means 'under the seas,' not 'below sea level.' It is the world's most famous unit conversion misunderstanding.