Homelogarithm calculator
Logarithm Calculator
Calculate log base b, natural log (ln), log\u2081\u2080, and antilogarithms.
| Function | Value |
|---|---|
| log₁₀(100) | 2 |
| ln(100) — natural log | 4.6051702 |
| log₂(100) | 6.6438562 |
| log10(100) — custom base | 2 |
| Antilog₁₀(100) = 10^100 | 1e+100 |
| e^100 (antilog natural) | 2.6881171e+43 |
Common logarithm values
log₁₀(1) = 0
log₁₀(10) = 1
log₁₀(100) = 2
ln(1) = 0
ln(e) = 1
log₂(2) = 1
log₂(8) = 3
log₂(1024) = 10
ln(e²) = 2