Radiocarbon Dating (C-14)Chemistry

Radiocarbon Dating (Carbon-14) Archaeological Age Calculator

Calculate the chronological age of archaeological and organic specimens in Years Before Present (BP) from residual Carbon-14 activity using first-order nuclear decay kinetics.

Calculated Result

Estimated Specimen Age (Years BP)

1years BP

Calculator Inputs

Quick select:

Estimated Specimen Age (Years BP)

1years BP

Half-Lives Elapsed

0 cycles

Approximate Calendar Year

1,949 Cal Year

Highly Reliable Dating Window: The sample age falls securely within the validated 50,000-year radiometric limit for Carbon-14.

Carbon-14 Radioactive Decay Profile

Remaining %
35 %(100%)

Standard nuclear chemistry and geochronology tool for organic sample dating up to ~50,000 years.

Calculation Methodology

Carbon-14 decays via first-order kinetics with a half-life of 5730 years. Decay Constant: λ = ln(2) / 5730 ≈ 0.00012097 yr^-1. Specimen Age: t = - (1 / λ) * ln(Percent C14 Remaining / 100). Half-Lives Elapsed = t / 5730.

Frequently Asked Questions

Approximately 50,000 to 60,000 years (roughly 10 half-lives), beyond which less than 0.1% of original C-14 remains, making it indistinguishable from laboratory background noise.

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