Logarithm Calculator
Calculate common logarithms, natural logarithms, and logarithms with any base. Supports log₁₀, ln, and custom base with a log table included.
Log Table
| x | log₁₀(x) | ln(x) |
|---|---|---|
| 0.001 | -3.000000 | -6.907755 |
| 0.01 | -2.000000 | -4.605170 |
| 0.1 | -1.000000 | -2.302585 |
| 0.5 | -0.301030 | -0.693147 |
| 1 | 0.000000 | 0.000000 |
| 2 | 0.301030 | 0.693147 |
| 3 | 0.477121 | 1.098612 |
| 5 | 0.698970 | 1.609438 |
| 10 | 1.000000 | 2.302585 |
| 50 | 1.698970 | 3.912023 |
| 100 | 2.000000 | 4.605170 |
| 1000 | 3.000000 | 6.907755 |
How to Use
Enter Values
Enter number and base
Calculate
Logarithm is calculated automatically
Check Results
Check calculation result
Features
Three Types
Supports log₁₀, ln, and custom base
Instant Calculation
Calculate logarithm in real-time
Log Table
Common logarithm values
FAQ
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