Chains to Feet: Convert Chain Measurements

To convert chains to feet, multiply the number of chains by 66: one chain equals 66 feet. This calculator takes a chain measurement and returns the equivalent distance in feet, with an optional conversion to yards and meters for comparison.

Formula

Feet = chains × 66. A chain is defined as 66 feet, so multiplying a distance measured in chains by 66 gives its length in feet. The calculator then converts feet to yards by dividing by 3, and to meters by multiplying by 0.3048.

• chains is the input distance in chains.
• feet is the converted distance in feet (ft).
• yards is the same distance in yards (yd); 3 feet equal 1 yard.
• meters is the same distance in meters (m); 1 foot equals exactly 0.3048 meter.

Worked Example

Using the default input of 1 chain:

1. Feet: 1 × 66 = 66 ft.
2. Yards: 66 ÷ 3 = 22 yd.
3. Meters: 66 × 0.3048 = 20.1168 m, which rounds to 20.12 m.

The calculator’s main result is 66.00 feet. The extra decimal places are display rounding; the defined length of one chain is exactly 66 feet.

What a Chain Measures

A chain is a unit of length in the customary system. Its standard value is 66 feet, or 22 yards. Since a yard is exactly 0.9144 meter, a chain is also exactly 20.1168 meters. The unit is distinct from a square chain, which measures area rather than distance.

The name is associated with the historical measuring chain used by surveyors. A traditional surveyor’s chain consisted of linked metal segments, and its length was set at 66 feet. The unit remained useful because 66 feet divides neatly into common surveying quantities: a chain is 4 rods (also called poles or perches), and each rod is 16.5 feet. It also contains 100 links in the traditional chain measurement, making each link 0.66 foot, or 7.92 inches.

Not every physical measuring chain has to be 66 feet long. The conversion applies to the unit called a chain, not to an arbitrary piece of chain or a tool with another stated length. Check the unit or instrument label if the measurement comes from equipment rather than a written survey or map.

How to Convert Chains to Feet

Enter the chain value and multiply it by 66. For example, 2.5 chains equals 2.5 × 66, or 165 feet. A measurement of 0.25 chain is 16.5 feet. For a larger value such as 10 chains, the result is 660 feet.

For a manual check, keep the units beside the calculation: chains × 66 feet per chain = feet. The chain units cancel, leaving feet. This dimensional check helps catch a frequent mistake: dividing by 66 when converting chains to feet. Division is used for the reverse conversion, from feet to chains.

Although the calculator accepts decimal chains, survey documents may express a distance in chains and links. Because 100 links make one chain, convert links to a decimal fraction first: 25 links are 0.25 chain, and 7 links are 0.07 chain. Then apply the 66-foot multiplier. For instance, 3 chains and 25 links is 3.25 chains, or 214.5 feet.

Where the Unit Appears

Chains can still appear in older land descriptions, historical maps, surveying records, and some descriptions of property boundaries. A reader trying to understand such a record may need to translate a linear measurement into feet, but converting the unit does not by itself establish where a boundary lies. Boundary descriptions can depend on bearings, landmarks, recorded surveys, and local records as well as distances.

The word also appears in land-area measurements. A square chain is a square whose sides each measure one chain. Its area is 66 × 66 = 4,356 square feet, equal to one-tenth of an acre. This is not the same as saying that one chain equals 4,356 feet: a chain is a length, while a square chain is an area. For conversions involving area, square feet or acres must be used rather than feet.

Common Conversion Mistakes

• Mixing up chains and links: 100 links make one chain; a link is not another name for a chain.
• Confusing length and area: use 66 to convert chains to feet, but use 4,356 to convert square chains to square feet.
• Reversing the operation: multiply by 66 to get feet from chains; divide feet by 66 to get chains.
• Rounding too early: keep the full value through intermediate calculations, then round the displayed result to the needed precision.
• Assuming every chain-shaped tool is one chain: verify the instrument’s stated length instead of relying on its appearance.

Frequently Asked Questions

How many feet are in one chain?
One chain is exactly 66 feet.

How many yards are in a chain?
A chain is 22 yards, because 66 feet divided by 3 feet per yard equals 22.

How many meters is one chain?
One chain is exactly 20.1168 meters, commonly rounded to 20.12 meters.

How do I convert feet back to chains?
Divide the number of feet by 66. For example, 330 feet ÷ 66 = 5 chains.

Is a chain the same as a square chain?
No. A chain measures length; a square chain measures area and equals 4,356 square feet.

How many links are in a chain?
A traditional survey chain contains 100 links. Each link represents 0.01 chain, or 0.66 foot.

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in chains | Distance | chains | 1 | 0
out feet | Distance | ft | chains * 66 | 2
out yards | Distance | yd | feet / 3 | 2
out meters | Distance | m | feet * 0.3048 | 2