Radiometric Dating Calculator
Estimate sample age from isotope half-life and remaining parent isotope percentage.
Estimate sample age from isotope half-life and remaining parent isotope percentage.
Move between earthquakes, seismic waves, radiometric dating, geothermal gradients, porosity, tectonic plate motion and density relationships.
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Open calculatorRadiometric Dating Calculator is an educational Earth Science tool for exploring a standard quantitative relationship.
Enter the requested values using the stated units. The calculator validates the numerical domain and applies age = t½ × ln(1/f) / ln(2).
Variables: t½ = Half-life (years); f = Remaining parent isotope (%).
Example: t½ = 5730 years, remaining = 50% → age = 5730 years.
It is intended for Earth Science study, classroom exercises and understanding the quantitative relationship represented by the model.
No. Real Earth systems can be more complex. The result should be interpreted within the assumptions, units and simplifications of the stated model.
These sources are used to verify terminology, formulas, and information related to this calculator.