Chain to Thou Converter (and vice versa)
Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026
This converter allows you to convert chains [ch] to thous [mil] or thous [mil] to chains [ch]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.
Convert chains to thous
There are two simple ways to convert chains [ch] to thous [mil]. In the first calculation method, the value in chains [ch] is divided by the rounded conversion factor of 1.263 * 10-6. The second method multiplies the value in chains [ch] by 792,000.
- Thous [mil] ≈ chains [ch] ÷ (1.263 * 10-6)
- Thous [mil] = chains [ch] * 792,000
The calculation method with a rounded conversion value is more suitable for rough conversions from chains [ch] to thous [mil], as the calculation result may contain rounding errors. Therefore, the variant with the exact conversion factor is more suitable.
Convert thous to chains
Converting thous [mil] to chains [ch] is easy and can be done in two ways. The first method involves multiplication, in which the value in thous [mil] is multiplied by the rounded conversion factor of 1.263 * 10-6. The second variant is a division. Here, the value in thous [mil] is divided by 792,000.
- Chains [ch] ≈ thous [mil] * 1.263 * 10-6
- Chains [ch] = thous [mil] ÷ 792,000
The rounded conversion value can cause rounding errors, resulting in inaccurate calculation results. To ensure that the conversion from thous [mil] to chains [ch] produces the most accurate calculation result possible, the conversion should be performed using the exact conversion factor.
Converter
Decimal places
How it's calculated
To all available units
Decameters
Astronomical units
Decameters
Cable lengths
Decameters
Chains
Decameters
⅛ Inches
Decameters
Eighth miles
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