📏 ftm to m — Fathom to Meter Converter

Convert length and distance units — meters, feet, inches, kilometers, miles, light years and more.

1 unit =
From
To
Formula 1 ftm = 1.8288 m
UnitNameValue
0.001 ftm0.0018288 m
0.01 ftm0.018288 m
0.1 ftm0.18288 m
1 ftm1.8288 m
5 ftm9.144 m
10 ftm18.288 m
50 ftm91.44 m
100 ftm182.88 m
1000 ftm1828.8 m

How to convert Fathom to Meter

Multiply the number of Fathoms by 1.8288 to get Meters. Formula: m = ftm × 1.8288. Example: 10 ftm × 1.8288 = 18.288 m. To reverse, divide Meters by 1.8288 to get Fathoms.

Worked examples

Example 1
1 ftm × 1.8288 = 1.8288 m
1 Fathom equals 1.8288 Meter.
Example 2
5 ftm × 1.8288 = 9.144 m
5 Fathom equals 9.144 Meter.
Example 3
10 ftm × 1.8288 = 18.288 m
10 Fathom equals 18.288 Meter.
Example 4 — reverse
1 m = 0.546807 ftm
To convert back from Meter to Fathom, divide by 1.8288 or use the swap button above.

Fathom to Meter — reference table

Fathom (ftm)Meter (m)
0.001 ftm0.0018288 m
0.01 ftm0.018288 m
0.1 ftm0.18288 m
0.5 ftm0.9144 m
1 ftm1.8288 m
2 ftm3.6576 m
5 ftm9.144 m
10 ftm18.288 m
20 ftm36.576 m
50 ftm91.44 m
100 ftm182.88 m
250 ftm457.2 m
500 ftm914.4 m
1000 ftm1828.8 m
10000 ftm18288 m

Quick conversion tips

1
Multiply by 1.8288

To convert Fathom to Meter, multiply by 1.8288. Example: 10 ftm = 18.288 m

2
Reverse: divide by 1.8288

To convert Meter back to Fathom, divide by 1.8288 (multiply by 0.546807). Use the swap button above.

3
Round number check

Start with 100 Fathoms = 182.88 m as your reference point. Scale up or down from there.

Where fathom to meter conversion is used

Modern oceanographic research

Legacy ocean depth datasets recorded in fathoms must be converted to metres for integration with modern oceanographic databases, climate models, and international research publications that use SI units exclusively.

Hydrographic chart modernisation

National hydrographic offices worldwide are converting admiralty charts from fathom-based soundings to metres for ECDIS (Electronic Chart Display and Information System) compliance in modern maritime navigation.

Aquaculture site assessment

Fish farm operators assessing proposed sites use admiralty charts (fathoms) but design cage structures and mooring systems in metres — converting between the two is routine in aquaculture feasibility studies.

Marine engineering

Offshore platform and subsea pipeline engineers work in metres for all structural calculations but reference water depths in fathoms from historical survey records — conversion is daily practice in offshore engineering.

Recreational diving

Recreational divers learning from vintage diving manuals expressed in fathoms convert to metres for modern dive computers, tables, and certification standards that exclusively use metric depth measurements.

Coastal flood modelling

Hydrologists integrating historical tidal records (in fathoms) with modern coastal flood models (in metres) require systematic fathom-to-metre conversion for consistent hazard assessment across historical and contemporary datasets.

Frequently asked questions

1 Fathom equals 1.8288 Meters. Multiply any Fathom value by 1.8288 to get Meters.
10 Fathoms equals 18.288 Meters. (10 × 1.8288 = 18.288)
100 Fathoms equals 182.88 Meters. (100 × 1.8288 = 182.88)
Divide Meter by 1.8288 to get Fathoms. Or multiply by 0.546807. Use the swap button on the converter above for instant reverse conversion.
Formula: m = ftm × 1.8288. Example: 5 ftm × 1.8288 = 9.144 m.
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About Fathom and Meter

Fathom (ftm)

The Fathom is a unit of Length measurement (symbol: ftm). 1 ftm = 1.8288 m. Used in scientific and practical Length measurement applications.

Meter (m)

The Meter is a unit of Length measurement (symbol: m). It is part of an internationally recognised measurement system used alongside the Fathom.

History & origin

The fathom derives from the Old English 'fæthm', meaning the span of outstretched arms — roughly 6 feet or 1.8 metres. It was the primary depth measurement unit used by mariners for millennia, recorded in the Bible and used by ancient Greeks. Samuel Pepys referenced fathoms in 17th-century naval logs. The word 'fathom' also entered English as a verb meaning to understand something deeply — from the idea of plumbing the depths. Despite metrication, fathoms remain on admiralty charts worldwide.

The metre was born from the French Revolution's desire to replace chaotic pre-metric measurement with a rational universal standard. In 1791 the French Academy of Sciences defined it as one ten-millionth of the distance from the equator to the North Pole along the Paris meridian. Early prototypes were made in platinum; a more precise platinum-iridium bar was created in 1889. In 1983, the metre was redefined using the speed of light — exactly the distance light travels in 1/299,792,458 of a second.

Common use: Fathom to Meter conversion is needed when working with international standards, scientific publications, or reference materials that use different unit systems for Length measurement.