# How to Calculate Logarithms?

To calculate logarithms, get a scientific calculator with “log” functions on it; use the “Change of base” formula. Convert the standard form logarithms into a ratio and format you can type into a calculator. For any log in standard form, use log b (subscript) x (variable) = log 10 (subscript) x (variable)/log 10 (subscript) b (variable). Once the conversion is complete, you will have a new form to enter into your calculator; enter your ratio. Press the “log” key on the calculator and then hit the value of x; this is the number you already determined earlier in Step 2. Next, press the division key on the keypad, press the “log” button again and the “equals” or “exe” key. You will see the value of the logarithms on the display.
How to Calculate Logarithms
Calculating logarithms involves looking at exponents from the opposite side. Calculate logarithms with a professional math tutor in this free video on math skills.... More »
Difficulty: Moderate
Source: www.ehow.com
to calculate a logarithm, you must find the exponent to make the little number, or base, equal the large number. ie, log base 2 of 16 = 4 because 2^4=16
Q&A Related to "How to Calculate Logarithms"
 1. Decide whether you want common (base 10) or natural (base e) logarithms. Usually, you will know which one to use by the format of the formula you are given; if it calls for log http://www.ehow.com/how_8298644_evaluate-logarithm...
 1. Place the two numbers that you will be deriving the mean from in a series by writing them down in sequential order. For example, use 190 and 280, written in that order. 2. Calculate http://www.ehow.com/how_8140380_calculate-logarith...
 1. Get a scientific calculator with “log” functions on it. Most logarithms are in the form of long decimals. Trying to do these types of calculations by hand is not practical http://www.ehow.com/how_2313202_calculating-logari...
 1. Enter the number whose natural logarithm you wish to calculate. To get accurate results, you should enter the full number and avoid rounding. For example, if you calculate the http://www.ehow.com/how_8306275_calculate-natural-...
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