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Calculators
Archaeology Calculators
Artifact & Site Analysis
Bone Fragmentation Index Calculator

Bone Fragmentation Index Calculator

NISP / MNI ratio.

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About Bone Fragmentation Index Calculator

The Bone Fragmentation Index Calculator is a specialized tool designed to quantitatively assess the degree of fragmentation in bone assemblages. It calculates the Bone Fragmentation Index (BFI) by computing the ratio of the Number of Identifiable Specimens (NISP) to the Minimum Number of Individuals (MNI). This standardized metric is invaluable for archaeologists, forensic anthropologists, and researchers studying taphonomy, offering critical insights into post-depositional processes, site formation, and potential human or animal modifications. By providing a consistent, data-driven measure of fragmentation, the calculator enhances the comparability of findings across different studies and contexts, improving the reliability of skeletal analyses and aiding in comprehensive interpretations of archaeological sites or forensic cases.

Next Steps
Artifact Density Calculator
Items per volume/area.
Minimum Number of Individuals (MNI) Calculator
Zooarchaeology MNI.
Pottery Sherd Estimator
Estimate whole vessels from weight.
Settlement Population Estimator
Based on floor area.
Radiocarbon Calibration Calculator
Uncalibrated BP to Cal BC/AD bounds.
Context
Archaeological calculations often rely on region-specific constants and calibration curves. Ensure inputs closely match your site's parameters.
Precision
Results are estimates. For radiometric dating, standard deviations and calibration software (OxCal, Calib) provide definitive ranges.