What is 81cmil in Roods?

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What is 81 Circular Mils (81cmil) in Roods (ro)?

What is 81cmil in ro? Convert 81 Circular Mils (81cmil) to Roods (ro) and show formula, brief history on the units and quick maths for the conversion.

Enter Circular Mils to convert to Roods


Quick Reference for Converting Circular Mils to Roods

Formula
ro = cmil / 1996643293898.1
Quick Rough Maths
To get the Roods, divide the number of Circular Mils by 2 trillion
Circular Mils (cmil) in 1 Rood
There are 1996643293898.1 Circular Mils in 1 Rood
Roods (ro) in 1 Circular Mil
There are 0 Roods in 1 Circular Mil

Unit Information

Circular Mil
/ˈsəːkjʊləˌmɪl/
Symbol: cmil
Unit System: Units For Measuring Wire Gauges

What is the Circular Mil?

The circular mil is a unit designed specifically to measure the area of a wire with a circular cross section. It has the symbol cmil.

An inch is 1000 mils. This makes the circular mil particularly useful for measuring cross sections of wire as there is no need to use the symbol π so the process is simplified.

A circular mil is a very small unit so not advised to use for large areas!

Rood
/ruːd/
Symbol: ro
Unit System: Historic English

What is the Rood?

The rood is a unit of area used in historic England with the symbol ro.

Its unit size is equal to 1/4 of an acre, 10,890 ft² or 1,012m². A rectangle equal to one furlong in length and one rod in width is one rood in area.

Its use was very important in surveying land because of the ease of conversion into acres from smaller sections of land.


Conversion Tables for Circular Mils (cmil) to Roods (ro)