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Calcimator

Document Age Estimation Calculator

Estimate document age from ink volatile analysis and paper acidity. Uses exponential decay modeling of ink solvent evaporation.

Inputs

%
yrs

Results

Estimated Age

5.5 years

Confidence Range

3.9 – 7.2 years

Degradation Rate (k)0.15
How to Use This Calculator
  1. Enter Ink Volatiles Remaining, Paper pH, and Reference Sample Age.
  2. Review Estimated Age (years) and Confidence Range.
  3. Use Degradation Rate (k) to inform your decision.
  4. Use the chart to visualize the results and explore different scenarios by adjusting inputs.
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