Natural Log Calculator (ln)
Calculate the logarithm of a number to the base e (≈ 2.71828).
y = ln(x) ↔ eʸ = x
ln(10) ≈ 2.3025
What is a natural logarithm (ln)?
The natural logarithm is a logarithm with base e, where e is an irrational constant approximately equal to 2.71828. It is denoted as ln(x) or logₑ(x).
How do I calculate ln(x)?
The natural log of x is the power to which e must be raised to equal x. If eʸ = x, then ln(x) = y.
What is ln(1)?
The natural log of 1 is always 0, because e⁰ = 1.
What is ln(e)?
The natural log of e is 1, because e¹ = e.
🔗 Related Calculators
📐 Formula
y = ln(x) ↔ eʸ = x
📝 Example Calculation
ln(10) ≈ 2.3025
❓ Frequently Asked Questions
What is a natural logarithm (ln)?▼
The natural logarithm is a logarithm with base e, where e is an irrational constant approximately equal to 2.71828. It is denoted as ln(x) or logₑ(x).
How do I calculate ln(x)?▼
The natural log of x is the power to which e must be raised to equal x. If eʸ = x, then ln(x) = y.
What is ln(1)?▼
The natural log of 1 is always 0, because e⁰ = 1.
What is ln(e)?▼
The natural log of e is 1, because e¹ = e.