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miles to chains | Decimal AND Fraction Results

1 Mile = 80 Chain

One mile equals exactly 80 chains — a fixed ratio you can memorize. Real-world use: driving distances, speed limits, and running races such as the 5-mile and half-marathon in imperial countries. This page expresses those values in chains, which is used for surveying; cricket pitch length is one chain (22 yards). Enter any value above — the result updates instantly, and a 1–1000 reference table follows below.

About Mile and Chain

Mile (mi)

A mile is 5,280 feet or exactly 1,609.344 meters, the standard long-distance unit in the US and UK.

Where it's used: Driving distances, speed limits, and running races such as the 5-mile and half-marathon in imperial countries.

Chain (ch)

A chain is 66 feet or exactly 20.1168 meters, made of 100 links.

Where it's used: Surveying; cricket pitch length is one chain (22 yards).

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Length Converter

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Formula

ch = mi × 80

To convert Mile to Chain, use the formula displayed above.

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Mile to Chain: Quick Reference Table

Mile Chain (Decimal) Fraction
0.001 mi 0.08 ch 5/64 ch
0.01 mi 0.8 ch 51/64 ch
0.1 mi 8 ch -
0.5 mi 40 ch -
1 mi 80 ch -
2 mi 160 ch -
5 mi 400 ch -
10 mi 800 ch -
25 mi 2000 ch -
50 mi 4000 ch -
100 mi 8000 ch -
250 mi 20000 ch -
500 mi 40000 ch -
1000 mi 80000 ch -

mi to ch Formula and Examples

Direct Formula ch = mi × 80
Inverse Formula mi = ch × 0.0125
Mental Math Shortcut

Multiply the value by roughly 80 to calculate the equivalent amount in your head.

Common Mile to Chain Calculations

  • 5 mi = 400 ch
  • 10 mi = 800 ch
  • 50 mi = 4000 ch
  • 100 mi = 8000 ch
  • 500 mi = 40000 ch

Precision & Practical Use

For example, 10 mi = 800 ch — roughly multiple unit increments.

Our results show up to 9 decimal places, but real measuring tools don't. For engineering and machining, work to the millimeter (0.001 m) or 1/64 inch; for construction and DIY, an eighth of an inch (0.125 in) is usually precise enough.

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Related Specialist Length Calculators & Niche Tools

While basic length conversions between meters, centimeters, inches, and feet are useful for everyday measurements, specialized engineering, construction, and sizing applications require advanced, unit-specific calculations. Converting physical dimensions is crucial in professional fields to determine mechanical fits, electrical capacities, and material requirements.

For instance, electrical engineers use AWG (American Wire Gauge) measurements to calculate cross-sectional wire area in metric square millimeters (mm²), which dictates safe current capacity. Woodworkers and lumber yards use the board feet formula to calculate volume rather than simple linear length. Home builders rely on square footage calculators to figure out spatial areas for drywall and flooring, while mechanics use nominal to actual pipe size charts to verify fittings. Additionally, automotive speedometer calibrations require custom tire diameter ratio checks. Using our niche length and sizing tools ensures your measurements convert cleanly to practical real-world targets.

How to Convert Mile to Chain

How many chains are in one mile?
One Mile (mi) equals 80 Chain (ch). To convert miles to chains, multiply the mile value by 80.
How do I convert Mile to Chain?
Multiply your mile value by 80 to get the result in Chain: ch = mi × 80. For example, 5 mi = 400 ch.
What is the formula for converting mi to ch?
The conversion formula is ch = mi × 80. Use the calculator above for any value, and see the reference table below for common inputs from 0.001 to 1000.
Is there a quick mental estimate for mi to ch?
Multiply the value by roughly 80 to calculate the equivalent amount in your head.
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