Circular Mil To Square Mil Calculator
Turn circular mils into square mils quickly through this trusted calculator. The electrical industry uses circular mils and square mils to measure wire and conductor areas. This application gives users a fast and reliable method to convert between both units, which benefits engineers and others who deal with electrical components. Our tool takes circular mil values and returns the precise square mil result right away. Our tool delivers precise results at high speed for your electrical circuit work and other measurement tasks. You can use it now to get speedy and right results.
Convert Circular Mil To Square Mil
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Definition of the Circular Mil
A circular mil represents the area of a circle with a diameter of one mil, where:
1
mil = 1/1000
inch (0.001
inch).- However, in the circular mil system, the area of a circle with a 1-mil diameter is defined as exactly
1
circular mil, bypassing the need for π in the calculation.
Circular Mil Historical
The circular mil was adopted to supplement the well-established standard as a unit of measure for the cross-sectional area of circuit conductors, especially wires and cables. It came into existence at the time of the formation of modern electrical systems in the 19th and 20th centuries when engineers needed a manner to measure cross-sectional areas of wires and their electrical performance.
Due to its simple concept, it was accepted on a large scale in the electrical industry most notably in North America where it forms part of the wire gauge numbering system.
Conversion to Other Units
The circular mil is a small unit of area, and its conversions include:
1
circular mil = 7.854 × 10⁻⁷
square inches1
circular mil ≈ 5.067 × 10⁻⁶
square centimeters1
circular mil ≈ 7.297 × 10⁻¹⁰
square feet1
square inch = 1,273,239
circular mils
Use in Measurement Today
The circular mil remains a critical unit in the electrical and engineering industries, particularly for:
- Electrical Conductors: Applied for definition of the cross-sectional area of wires and cables. Crucial in calculating the current capability of a given wire, its opposition to the stream of current and voltage drop.
- Wire Sizing Standards: Often encountered in the American Wire Gauge (AWG) system used for measuring wire areas in circular mils.
- High-Voltage Systems: Used mainly in construction of high voltage transmission cables.
- Safety and Regulation: Ensures that electrical installations will operate at the design load by avoiding such features like overheating or voltage drop.
Comparison to Land Measurement Units
The circular mil is not even remotely connected to any sort of geographical or plotted area as is the case with the area units like acre or square feet, or to agriculture or real estate. Its use is limited to areas comprising small regions associated with electrical and mechanical systems.
- Land Measurement Units: 1. Designed for large areas like fields acre may be used or when measuring building spaces may use square feet. 2.On the other hand, the circular mil measures small parts of the area that could support electrical conductors.
Notable Uses
- Electrical Engineering: If a wire has a cross-sectional area of
1000
circular mils it is called kcmil or thousand circular mils used in large cables. - Telecommunications: Formerly applied to compute the resistance and capacitance respective of the wires involved in communication systems.
- Industrial Applications: Is involved in designing of motors windings, transformers and any electric devices.
Square Mil: A Comprehensive Explanation
Definition of Square Mil
The square mil (symbol: one mil² is a unit of area in imperial and US customary units of measurement. It denotes the square in terms of one mil by one mil, where one mil is a thousandth of an inch or 0.001 inch. The square mil is an exceedingly small unit and is chiefly used in engineering applications where slender materials are employed, such as wires, films, etc.
Conversions to Other Units
The square mil is a very small unit of area, and its conversion to other units is as follows:
- Square Inches:
1
mil² = 0.000001
in² - Square Feet:
1
mil² = 6.944
× 10⁻⁸
ft² - Square Meters:
1
mil² ≈ 6.4516
× 10⁻¹²
m²
Historical of Square Mil
The square mil emerged from the evolution of the mil, which was a result of the requirement of finer units of measurement for some fields such as fabricating, mechanics, electrical, and the like. The mil has been used for several years, including in the United States, to measure the thickness of materials and the diameter of wires, which is why the square mil has been chosen for calculations in related areas.
Use in Measurement Today
The square mil is primarily used in specialized fields:
- Electrical Engineering: Invented to enable the determination of the area of the cross section of wires as well as conductors. For instance, wire gauges are usually characterized in terms of circular mils (a related quantity) or square mils as regards size and carrying capacity.
- Manufacturing: Used in calculating the thickness of, the area of, and mainly films, foils, and coatings.
- Microscopy and Materials Science: Applied in measurement of small or highly intricate items in dimensions of area.
Notable Uses in Agriculture and Real Estate Contexts
The square mile is far too small for proper application in considerations of farming tracts of land or housing units or tracts that are expressed in units of square feet, acres, or hectares. The main application is limited to technical applications involving use at micro or mili scale.