Nichrome Resistance Calculator
A Nichrome Resistance Calculator is a tool used to calculate the resistance of Nichrome wire based on its resistivity, length, and diameter. Nichrome wires are often used as heating elements in various industrial and household applications. By using this calculator, users can calculate the total resistance of Nichrome wires, which is important for designing and troubleshooting heating circuits.
Formula
The formula used by the Nichrome Resistance Calculator is:
R = p * L / A
where:

R is the resistance of the Nichrome wire in ohms

p is the resistivity of the Nichrome wire in ohmmeters

L is the length of the Nichrome wire in meters

A is the crosssectional area of the Nichrome wire in square meters
Example
If we have a Nichrome wire with a resistivity of 1 x 106 ohmmeters, a diameter of 0.5 mm, and a length of 2 meters, we can calculate its resistance as follows:
A = π * (d/2)^2
A = 3.14 * (0.5 x 10^3 / 2)^2
A = 1.96 x 10^7 m^2
Using the formula R = p * L / A, we can calculate the total resistance of the Nichrome wire:
R = 1.0 x 10^6 * 2 / 1.96 x 10^7
R = 10.2 ohms
Therefore, the resistance of the Nichrome wire is 10.2 ohms.
How to Calculate
To use the Nichrome Resistance Calculator, follow these steps:

Enter the resistivity of the Nichrome wire in ohmmeters.

Enter the length of the Nichrome wire in meters.

Enter the diameter of the Nichrome wire in meters.

Click on the “Calculate” button to obtain the total resistance of the Nichrome wire in ohms.
The calculator will use the formula R = p * L / A to perform the calculation and display the result.
FAQs
What is the resistivity of Nichrome wire?
The resistivity of Nichrome wire is typically around 1.0 x 10^6 ohmmeters.
What is the maximum temperature that Nichrome wire can withstand?
Nichrome wire can withstand temperatures up to 1200°C, making it suitable for hightemperature applications such as heating elements in furnaces.
How can I determine the diameter of a Nichrome wire?
The diameter of a Nichrome wire can be measured using a micrometer or a caliper. Alternatively, the wire gauge can be used to determine the diameter based on its thickness.