Calculators

Common tools

Selected calculator

Oxygen Desaturation Index

Qualifying oxygen drops per hour of the selected measurement interval.

Desaturation definitionQualifying desaturations(count)Required — enter a known zero explicitly where applicable.Denominator type

Corresponding duration(minutes)Required — enter a known zero explicitly where applicable.

Result

Complete or correct the marked inputs to calculate. Blank values are not zero.

ODI3 / ODI4 = corresponding qualifying desaturation count × 60 / relevant minutes

Full precision is used internally. Only displayed results are rounded, normally to one decimal place.

For training use. Follow your lab’s scoring rules and physician interpretation. Calculations use already-scored measurements, stay on this device, and do not diagnose or recommend treatment. Do not enter patient identifiers.