Chain to Inch Converter
Length · unit-converter
Convert Chain to Inch 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: Inch (in)
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 Inch
The inch is an imperial and US customary unit equal to exactly 0.0254 meters. Twelve inches equal one feet; it is used for screen sizes, tools, and fine measurements.
How to convert chains to inches
1 chain is equal to 792.00000000000011 inch:
1 chain = (20.1168 m ÷ 0.0254 m) in = 792.00000000000011 in
Each chain is defined as 20.1168 m and each inch as 0.0254 m, so one chain equals 20.1168 ÷ 0.0254 in = 792.00000000000011 in.
Let d(chain) be the numeric value of the same length measured in Chain (chain), and d(in) the value in Inch (in). Then:
d(in) = d(chain) × (20.1168 / 0.0254)
Equivalently, divide by how many chain fit into one in (meters per in divided by meters per chain):
d(in) = d(chain) ÷ 0.00126262626263
Or: inch = chain ÷ 0.00126262626263
Examples
Example #1: Convert 20 chain to inch
20 chain = 20 chain × (20.1168/0.0254) in = 15840 in
20 chain = 20 chain ÷ 0.00126262626263 = 15840 in
Example #2: Convert 50 chain to inch
50 chain = 50 chain × (20.1168/0.0254) in = 39600 in
50 chain = 50 chain ÷ 0.00126262626263 = 39600 in
Summary
To convert Chain to Inch, multiply the value in chain by the ratio of meters per chain divided by meters per in. Equivalently: value_in = value_chain × (20.1168 / 0.0254). Numerically, 1 chain equals 792.0000000000001 in.
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) | Inch (in) |
|---|---|
| 0.1 | 79.2 |
| 1 | 792 |
| 2 | 1,584 |
| 3 | 2,376 |
| 4 | 3,168 |
| 5 | 3,960 |
| 6 | 4,752 |
| 7 | 5,544 |
| 8 | 6,336 |
| 9 | 7,128 |
| Chain (chain) | Inch (in) |
|---|---|
| 10 | 7,920 |
| 20 | 15,840 |
| 30 | 23,760 |
| 40 | 31,680 |
| 50 | 39,600 |
| 60 | 47,520 |
| 70 | 55,440 |
| 80 | 63,360 |
| 90 | 71,280 |
| 100 | 79,200 |