4 Fathom to Chain
Quick answer
4 Fathom (ftm) equals
0.363636 ch
To convert 4 Fathoms to Chains, multiply by 0.0909090909. Therefore, 4 Fathom (ftm) equals 0.363636 Chain (ch).
Formula: ch = ftm × 0.0909090909. Calculation: 4 × 0.0909090909 = 0.363636 ch.
Convert Fathom (ftm) to Chain (ch) online with our free unit converter. In length, 1 ftm = 0.090909 ch. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Fathom to Chain
- Step 1 — start with the formula. ch = ftm × 0.0909090909
- Step 2 — substitute your figure. 4 ftm × 0.0909090909
- Step 3 — read the result. 4 ftm = 0.363636 ch
- Step 4 — check it in reverse. ftm = ch × 11 returns 4 ftm, which matches the figure you started with.
Length Converter
31 units available
4 ftm = 0.363636 ch
Formula:
ch = ftm × 0.0909090909With your value: 4 ftm = 0.36363636 ch
How big is that?
Everyday references on a logarithmic scale, all expressed in fathom so you can sanity-check the result.
Other Fathom to Chain conversions
Fathom to Chain Conversion Table
| Fathom (ftm) | Chain (ch) |
|---|---|
| 0.5 | 0.045455 |
| 1 | 0.090909 |
| 2 | 0.181818 |
| 5 | 0.454545 |
| 10 | 0.909091 |
| 15 | 1.363636 |
| 20 | 1.818182 |
| 25 | 2.272727 |
| 50 | 4.545455 |
| 100 | 9.090909 |
| 250 | 22.727273 |
| 500 | 45.454545 |
| 1000 | 90.909091 |
Chain to Fathom Conversion Table
| Chain (ch) | Fathom (ftm) |
|---|---|
| 0.5 | 5.5 |
| 1 | 11 |
| 2 | 22 |
| 5 | 55 |
| 10 | 110 |
| 15 | 165 |
| 20 | 220 |
| 25 | 275 |
| 50 | 550 |
| 100 | 1,100 |
| 250 | 2,750 |
| 500 | 5,500 |
| 1000 | 11,000 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Fathom (ftm)
Length
Traceable to the metre, defined by fixing the speed of light in vacuum at 299 792 458 m/s. Imperial lengths derive from the 1959 international yard (0.9144 m exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Chain (ch)
Length
Traceable to the metre, defined by fixing the speed of light in vacuum at 299 792 458 m/s. Imperial lengths derive from the 1959 international yard (0.9144 m exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Fathom to Chain
To convert from Fathom (ftm) to Chain (ch), multiply the value by 0.0909090909.
Formula: ch = ftm × 0.0909090909
Reverse: ftm = ch × 11
Step-by-Step Example
- Start with your value in Fathom. For example: 5 ftm
- Multiply by the conversion factor: 5 x 0.0909090909
- The result is: 0.454545 ch
Fathom and Chain Relationship
This calculation facilitates standardized conversion between recognized units of length. Since 1 Fathom represents a fraction of a Chain (1 Chain ≈ 11 Fathoms), the Chain is the larger measurement interval. Understanding the relationship between Fathom and Chain is essential for accurate calculations in physics, engineering, commerce, and daily applications.
About Fathom
The fathom equals 6 feet (1.8288 m) and is the traditional unit for water depth on nautical charts.
Fun Fact: The word comes from the Old English "fæðm", the span of a man's outstretched arms.
Common uses of Fathom: sounding depth, nautical charts, diving.
About Chain
Gunter's chain equals 66 feet (20.1168 m) and underpins the US Public Land Survey System: 10 square chains make one acre.
Common uses of Chain: land surveying, cadastral records, cricket pitch length.
Frequently Asked Questions
- What is 4 Fathom in Chain?
- 4 Fathom equals 0.363636 Chain.
- How many Chains are in 1 Fathom?
- There are exactly 0.0909090909 Chains in 1 Fathom. This means the conversion factor from Fathom to Chain is 0.0909090909.
- What is the formula to convert Fathom to Chain?
- The formula to convert Fathom to Chain is: ch = ftm × 0.0909090909. For example, to convert 10 Fathoms to Chains, you would multiply 10 by 0.0909090909.
- What is a Fathom?
- The fathom equals 6 feet (1.8288 m) and is the traditional unit for water depth on nautical charts.
- What is a Chain?
- Gunter's chain equals 66 feet (20.1168 m) and underpins the US Public Land Survey System: 10 square chains make one acre.
- What are the common uses of Fathom?
- The Fathom is commonly used in sounding depth, nautical charts, diving.
Related Length Conversions
Cite this page
UnitConvertLab. (2026). 4 Fathom to Chain. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/4-fathom-to-chain