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Logarithm Calculator
Calculate logarithms in any base.
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log10(100)
2.000000
log₁₀
2.0000
ln (loge)
4.6052
log₂
6.6439
◆ How it works
Logarithm Calculator — 3 simple steps
01
Enter number + base
For log_base(num)
02
See all common
log10, ln, log2