Chemistry

Radiocarbon Dating Calculator

Estimate age from remaining carbon-14.

Calculated Output

Estimated age (years) 5,730.25

Formula: age = −8267 × ln(fraction)

Step-by-Step Breakdown

1. Values used:

2. Fraction of C-14 remaining = 0.5

4. Estimated age = 5,730.25years

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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.