Convert Chain to Decimetre

Quick answer: Chain to Decimetre

1 Chain = 201.168 Decimetre (ch → dm). To convert chain to decimetre, multiply by 201.168. To convert decimetre to chain, multiply by 0.00497097. The converter at the top does this instantly and both ways; the sections below give the formula, worked examples, a full conversion chart and answers to the most common chain-to-decimetre questions.

How to convert Chain to Decimetre

To convert chain to decimetre, multiply the number of chain by the conversion factor 201.168, because 1 ch = 201.168 dm. The conversion is linear, so the same factor works for any value — whole numbers, decimals or fractions. For the reverse direction, 1 dm = 0.00497097 ch, so you divide by 201.168 (or multiply by 0.00497097) to turn decimetre back into chain.

dm = ch × 201.168  ·  ch = dm × 0.00497097

1. Write down the value you want to convert, in chain.
2. Multiply it by 201.168.
3. The result is the same area/length/quantity expressed in decimetre.

Chain to Decimetre — worked examples

Each row shows the exact arithmetic so you can follow the conversion step by step. For example, 5 chain is 1,005.84 decimetre because 5 ch × 201.168 = 1,005.84 dm.

Common Chain to Decimetre conversions

These are the chain-to-decimetre values people look up most often. Every figure is computed from the exact factor, so you can rely on them for quick reference:

• 1 chain = 201.168 decimetre
• 2 chain = 402.336 decimetre
• 2.5 chain = 502.92 decimetre
• 3 chain = 603.504 decimetre
• 4 chain = 804.672 decimetre
• 5 chain = 1,005.84 decimetre
• 6 chain = 1,207.008 decimetre
• 7 chain = 1,408.176 decimetre
• 8 chain = 1,609.344 decimetre
• 9 chain = 1,810.512 decimetre
• 10 chain = 2,011.68 decimetre
• 12 chain = 2,414.016 decimetre
• 15 chain = 3,017.52 decimetre
• 20 chain = 4,023.36 decimetre
• 25 chain = 5,029.2 decimetre
• 30 chain = 6,035.04 decimetre
• 50 chain = 10,058.4 decimetre
• 75 chain = 15,087.6 decimetre
• 100 chain = 20,116.8 decimetre
• 200 chain = 40,233.6 decimetre
• 500 chain = 100,584 decimetre
• 1000 chain = 201,168 decimetre

Chain to Decimetre conversion chart (both directions)

The chart below converts chain to decimetre and decimetre to chain side by side, so it works whichever way you need. 1 chain = 201.168 decimetre, and 1 decimetre = 0.00497097 chain.

Chain vs Decimetre: which is bigger?

A chain is the larger unit: one chain equals 201.168 decimetres. Put another way, you need 201.168 decimetres to make a single chain.

What is a Chain? History, origin and usage

The chain was introduced in 1620 by the English clergyman and mathematician Edmund Gunter, who built a 66-foot iron chain of 100 links to make land surveying accurate and decimal-friendly. It cleverly reconciled the old four-based English units with decimal arithmetic, since ten square chains make exactly one acre.

Gunter's chain became the basis of property surveys across England and the British Empire and shaped the rectangular land grids of the United States and Canada. Though largely obsolete, it still turns up in old deeds and, famously, as the length of a cricket pitch.

A cricket pitch is exactly one chain, or 22 yards, long. Eighty chains make a mile, and because ten square chains equal one acre the design simplified land calculations for centuries.

What is a Decimetre? History, origin and usage

The decimetre is the metre divided by ten, using the prefix 'deci-' from the Latin decimus, 'tenth'. It was one of the original submultiple prefixes introduced with the metric system in France in 1795.

The decimetre is rarely used in everyday speech, overshadowed by the centimetre and the metre. It appears mostly in classrooms illustrating decimal place value, though it stays quietly relevant because a cubic decimetre is exactly one litre.

Because a cubic decimetre equals one litre, the decimetre underpins the metric measurement of liquid volume. Its prefix 'deci-' is Latin, unlike the Greek-derived prefixes used for the larger metric steps.

Convert 1 Chain to other units

It can help to see a chain next to the other units it is commonly compared with. One chain (ch) is equal to:

Convert 1 Decimetre to other units

One decimetre (dm) is equal to:

Tips for converting Chain to Decimetre

• To go from chain to decimetre, multiply by 201.168; to go back, divide by 201.168 (or multiply by 0.00497097).
• For a quick mental estimate, remember that 1 chain ≈ 201.168 decimetre, so 10 chain ≈ 2,011.68 decimetre.
• The converter above keeps full precision; the tables round for readability, so use the tool for exact figures.
• Both fields update live as you type — change either side to convert in that direction.

How to use this Chain to Decimetre converter

Type a number into the Chain field and the equivalent in Decimetre appears instantly — there is no “convert” button to press and nothing is sent to a server, so it works offline once the page has loaded and is safe for any data. You can also type into the Decimetre field to convert the other way (decimetre to chain). Use the swap control to flip the two units, and copy the result with a single click. Because the calculation runs in your browser with full floating-point precision, the converter is more exact than the rounded figures shown in the reference chart above — use the chart for quick look-ups and the tool for precise work.

Accuracy and method

Every figure on this page — the formula, the worked examples, the conversion chart and the “convert to other units” tables — is computed from a single verified conversion factor (1 ch = 201.168 dm), never copied from a hand-typed lookup table that could drift. That factor is derived from each unit’s definition in terms of a common base unit, and an automated check re-verifies all of the site’s factors on every update, so the numbers here stay correct over time. This matters for chain-to-decimetre conversions because a small rounding error in a published table compounds quickly at larger quantities; computing from the exact factor avoids that.

The metric units (km, m, cm, mm, µm) are exact by definition, and the imperial units (mile, yard, foot, inch, nautical mile) use their exact international values. Traditional units (hand, span, finger, cubit, rod/pole, link, rope, ken, league) are given at their commonly accepted standard sizes — historical local values sometimes differed, so confirm against a primary source before relying on them for legal or historical work.

Frequently asked questions

How many decimetre are in 1 chain?

1 chain = 201.168 decimetre (dm). To convert any number of chain to decimetre, multiply by 201.168.

How do I convert chain to decimetre?

Multiply the number of chain by 201.168. For example, 10 chain = 10 × 201.168 = 2,011.68 decimetre, and 25 chain = 5,029.2 decimetre.

How many chain are in 1 decimetre?

1 decimetre = 0.00497097 chain. So to convert decimetre back to chain, multiply by 0.00497097.

What is the formula to convert chain to decimetre?

decimetre = chain × 201.168. The reverse formula is chain = decimetre × 0.00497097.

How much is 100 chain in decimetre?

100 chain = 20,116.8 decimetre. (And 1000 chain = 201,168 decimetre.)

Which is bigger, a chain or a decimetre?

A chain is larger: 1 chain = 201.168 decimetre.

Is this chain to decimetre converter accurate?

Yes — every value is computed from the exact 201.168 dm per ch factor (not rounded look-up tables), and the factors are re-verified automatically on every update.

Can I convert decimetre to chain too?

Yes. The converter works both ways — enter a value in either field. 1 decimetre = 0.00497097 chain.

Related length conversions

• Decimetre to Chain
• Hand to Chain
• Chain to Hand
• Decimetre to Foot
• Foot to Decimetre
• Decimetre to Rope
• Rope to Decimetre

See all length conversions →