Radiocarbon Dating Calculator

Estimate age from remaining carbon-14.

Estimated age (years) 5,730.25

Formula: age = −8267 × ln(fraction)

Step-by-step with your numbers:

1. Values used:

2. Fraction of C-14 remaining = 0.5

4. Estimated age = 5,730.25years

Did we solve your problem today?

Carbon-14 dating estimates the age of organic remains from the C-14 left.

The math behind it

age = −8267 × ln(fraction remaining). C-14's half-life is 5,730 years (mean life 8,267).

50% remaining → ~5,730 years.

Limit?

Reliable to roughly 50,000 years.