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The IMLOG10 function returns the base-10 logarithm of a complex number in rectangular form. It is commonly used in engineering calculations involving AC circuits, such as determining the voltage and current in a circuit. The function takes one parameter, the complex number in rectangular form.


Use the IMLOG10 formula with the syntax shown below, it has 1 required parameter:

  1. value (required):
    The complex number in rectangular form for which the base-10 logarithm is to be calculated.


Here are a few example use cases that explain how to use the IMLOG10 formula in Google Sheets.

Calculating the power in an AC circuit

By using IMLOG10 to calculate the voltage and current in an AC circuit, it is possible to determine the power dissipated by the circuit. This can be useful in designing and optimizing circuit components.

Analyzing complex data sets

IMLOG10 can be used to analyze complex data sets, such as those found in scientific research, by transforming the data into a logarithmic scale. This can make it easier to identify patterns and relationships in the data.

Common Mistakes

IMLOG10 not working? Here are some common mistakes people make when using the IMLOG10 Google Sheets Formula:

Providing non-complex argument

The IMLOG10 function requires a complex number as its argument, providing a non-complex argument will result in an error.

Using incorrect syntax

Using incorrect syntax when calling the IMLOG10 function will result in an error.

The following functions are similar to IMLOG10 or are often used with it in a formula:

  • IMLN

    The IMLN function returns the natural logarithm of a complex number. It takes one required parameter, complex_value, which is the complex number for which to calculate the natural logarithm.


    The IMPRODUCT function in Google Sheets returns the product of multiple complex numbers. It takes in one or more complex numbers as input arguments and calculates their product. Complex numbers must be entered in the format a+bi, where a is the real part and b is the imaginary part. This function is commonly used in engineering and scientific applications.

Learn More

You can learn more about the IMLOG10 Google Sheets function on Google Support.