A surveyor's chain is 66 feet.
Chains to Nanometers Converter — ch to nm
Convert Chain (ch) to Nanometer (nm) using the exact conversion factor (1 chain = 20,116,800,000 nanometer). See the formula, worked examples, and conversion table.
Chains to Nanometers converter
Converter
Length Converter
Convert SI, imperial, US customary, astronomical, scientific, and historical length units.
Context values
Some unit families need one extra value for a physically accurate result.
Nanometer is 1e-9 meter units.
Result = input x 20.1168 / 1e-9.
Length uses the meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Chains to Nanometers
Chain and Nanometer both measure length. Specifically: A surveyor's chain is 66 feet, and nanometer is 1e-9 meter units.
Formula
nanometers = chains × 20116800000
This factor comes from each unit's defined relationship to the category's base unit: 1 chain equals 20.1168 base units, and 1 nanometer equals 1e-9 base units, so dividing one by the other gives the direct chain-to-nanometer factor of 20116800000.
Simple example
1 ch × 20116800000 = 20,116,800,000 nm
1 chain = 20,116,800,000 nanometers.
Real-world example
10 ch × 20116800000 = 201,168,000,000 nm
10 chains = 201,168,000,000 nanometers.
Conversion table
| Chain (ch) | Nanometer (nm) |
|---|---|
| 1 ch | 20,116,800,000 nm |
| 5 ch | 100,584,000,000 nm |
| 10 ch | 201,168,000,000 nm |
| 21.0975 ch | 424,414,188,000 nm |
| 42.195 ch | 848,828,376,000 nm |
| 100 ch | 2.01168e+12 nm |
Reverse conversion: Nanometer to Chain
1 nm × 4.97097e-11 = 4.97097e-11 ch
1 nanometer = 4.97097e-11 chains.
chains = nanometers × 4.97097e-11
For a page dedicated to this direction, see Nanometer to Chain.
Understanding the Chain (ch)
A surveyor's chain is 66 feet.
Understanding the Nanometer (nm)
Nanometer is 1e-9 meter units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanometers are in 1 chain?
1 chain equals 20,116,800,000 nanometers, using the exact defined conversion factor rather than an estimate.
How do I convert chain to nanometer?
Multiply the chain value by 20116800000. The converter above does this instantly to whatever precision you set.
How do I convert nanometer back to chain?
Use the reverse factor: 1 nanometer equals 4.97097e-11 chains. You can also use the swap control in the converter above to flip the direction instantly.
What is a chain?
Chain (ch) is a unit of length.
What is a nanometer?
Nanometer (nm) is a unit of length.
Is the chain to nanometer conversion exact?
Yes. Both chain and nanometer are defined by fixed standards rather than physical artifacts, so the factor of 20116800000 used above is exact to as many digits as you choose to display.