Chain to Feet Converter
Length · unit-converter
Convert Chain to Feet with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use SI-based definitions (international yard, nautical mile, etc.).
Calculator
From: Chain (chain)
To: Feet (ft)
About Chain
The chain is a surveying unit equal to 66 feet (20.1168 meters) exactly. It appears in land measurement and legacy civil engineering records.
About Feet
Feet are imperial and US customary units of length; each is exactly 0.3048 meters. Twelve inches make one feet; feet are common in construction and human-scale dimensions.
How to convert chains to feet
1 chain is equal to 66 feet:
1 chain = (20.1168 m ÷ 0.3048 m) ft = 66 ft
Each chain is defined as 20.1168 m and each feet as 0.3048 m, so one chain equals 20.1168 ÷ 0.3048 ft = 66 ft.
Let d(chain) be the numeric value of the same length measured in Chain (chain), and d(ft) the value in Feet (ft). Then:
d(ft) = d(chain) × (20.1168 / 0.3048)
Equivalently, divide by how many chain fit into one ft (meters per ft divided by meters per chain):
d(ft) = d(chain) ÷ 0.01515151515152
Or: feet = chain ÷ 0.01515151515152
Examples
Example #1: Convert 20 chain to feet
20 chain = 20 chain × (20.1168/0.3048) ft = 1320 ft
20 chain = 20 chain ÷ 0.01515151515152 = 1320 ft
Example #2: Convert 50 chain to feet
50 chain = 50 chain × (20.1168/0.3048) ft = 3300 ft
50 chain = 50 chain ÷ 0.01515151515152 = 3300 ft
Summary
To convert Chain to Feet, multiply the value in chain by the ratio of meters per chain divided by meters per ft. Equivalently: value_ft = value_chain × (20.1168 / 0.3048). Numerically, 1 chain equals 66 ft.
Relationship context
Both units belong to US customary / imperial length. Conversions often use simple ratios (for example inches and feet), while miles relate to yards and feet through fixed definitions. The numeric factor used here is traceable to the international inch (0.0254 m) and related definitions.
Conversion tables
| Chain (chain) | Feet (ft) |
|---|---|
| 0.1 | 6.6 |
| 1 | 66 |
| 2 | 132 |
| 3 | 198 |
| 4 | 264 |
| 5 | 330 |
| 6 | 396 |
| 7 | 462 |
| 8 | 528 |
| 9 | 594 |
| Chain (chain) | Feet (ft) |
|---|---|
| 10 | 660 |
| 20 | 1,320 |
| 30 | 1,980 |
| 40 | 2,640 |
| 50 | 3,300 |
| 60 | 3,960 |
| 70 | 4,620 |
| 80 | 5,280 |
| 90 | 5,940 |
| 100 | 6,600 |