Inr
Result
Calculated result
2.0833333333
Based on the values entered.
↗ Health
Inr — free online calculator.
Formula
INR = (PT_patient / PT_meanNormal)^ISI
- Inr calculates its result from Patient PT, Mean Normal PT, ISI of Reagent. It uses the formula INR = (PT_patient / PT_meanNormal)^ISI. Change any input to recalculate the result instantly. This is an informational calculation and is not medical advice.
- The main inputs are Patient PT, Mean Normal PT, ISI of Reagent. Enter them in the units and format shown in the calculator.
- Use the measurement units shown beside each field. The result is an estimate and should be interpreted in context.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Inr
Inputs
- Patient PT: 25
- Mean Normal PT: 12
- ISI of Reagent: 1
Using Patient PT = 25, Mean Normal PT = 12, ISI of Reagent = 1, the calculated result is 2.0833333333.
Sample result: Calculating…
Frequently asked questions
What does the Inr calculate?
Inr — free online calculator.
Which values should I enter?
Enter Patient PT, Mean Normal PT, ISI of Reagent using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: INR = (PT_patient / PT_meanNormal)^ISI.
Why might my result differ from another source?
Results can differ because measurement methods, rounding and assumptions vary. This calculator is an estimate and is not a medical diagnosis.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.