Carbon-14 Dating Calculator
Result
Carbon-14 Dating Calculator Estimate the age of an organic sample from its remaining carbon-14, or find how much C-14 is left after a given time. Carbon-14 decays with a half-life of 5,730 years, so the ratio of current to original activity reveals the sa — free online calculator.
Formula
- Carbon-14 Dating Calculator calculates its result from T Half, N0, Periods. It uses the formula age = (t_half * ln(N0/N)) / ln(2), or N/N0 = (1/2)^(age/t_half). Change any input to recalculate the result instantly.
- The main inputs are T Half, N0, Periods. Enter them in the units and format shown in the calculator.
- Use the units, labels and assumptions shown beside each input so the formula is applied consistently.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Carbon-14 Dating
- T Half: 2
- N0: 3
- Periods: 4
Using T Half = 2, N0 = 3, Periods = 4, the calculated result is 1.3333333333.
Sample result: Calculating…
Frequently asked questions
What does the Carbon-14 Dating calculate?
Carbon-14 Dating Calculator Estimate the age of an organic sample from its remaining carbon-14, or find how much C-14 is left after a given time. Carbon-14 decays with a half-life of 5,730 years, so the ratio of current to original activity reveals the sa — free online calculator.
Which values should I enter?
Enter T Half, N0, Periods using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: age = (t_half * ln(N0/N)) / ln(2), or N/N0 = (1/2)^(age/t_half).
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.