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Science & Environment

Carbon-14 Radiometric Dating Calculator

Estimate the age of an organic sample from its remaining carbon-14 activity using radiocarbon dating.

Your inputs

Change any value to update the result instantly.

Science & Environment
%
years

Estimated age

5,730 years

Remaining fraction

0.5

Half-life used

5,730 years

Half-lives elapsed

1

Formula and working

t = -(t½/ln2) × ln(N/N0)

  1. 1

    Collect the inputs

    Remaining carbon-14 = 50 %; Carbon-14 half-life = 5,730 years

  2. 2

    Apply the formula

    t = -(t½/ln2) × ln(N/N0)

  3. 3

    Result

    Estimated age = 5,730 years

Frequently asked questions

Important limitation

This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.

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