Age calculator
Your exact age on any date, from your DOB.
Open toolLogarithm calculator
Find a logarithm in any valid base.
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THE QUICK GUIDE
How to use logarithm calculator
Enter the labelled values, then process it. Copy or download the result.
How it works
Log(number) ÷ log(base); number and base must be positive, base ≠ 1.
A useful example
Number: 100; Base: 10 → 2
Good to know
Use consistent units and currency. These are general calculations; verify important results.