THC Creatinine Ratio Calculator

This calculator helps determine THC creatinine ratio to estimate THC concentration in urine, commonly used in drug testing scenarios.

Input Parameters

Calculation Results

THC Creatinine Ratio

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Where:
THC Creatinine Ratio = THC Concentration (ng/mL) / Creatinine Concentration (mg/dL)

Interpretation

Enter values and click Calculate to see interpretation.

THC Creatinine Ratio Calculator Usage Guide

Learn how to use the THC Creatinine Ratio Calculator and its working principles for drug testing interpretation.

How to Use This Calculator

  1. Enter the measured THC concentration in ng/mL
  2. Enter the measured creatinine concentration in mg/dL
  3. Click the "Calculate" button to determine the THC Creatinine Ratio
  4. Review the interpretation based on the calculated ratio

Understanding the THC Creatinine Ratio

The THC Creatinine Ratio is calculated by dividing the concentration of THC in urine (ng/mL) by the concentration of creatinine (mg/dL). This ratio helps normalize THC concentrations across different urine samples, accounting for individual differences in muscle mass and creatinine production.

Interpretation Guidelines

While laboratory cutoffs for THC vary, general guidelines suggest:

  • Ratio < 15: Low concentration, possibly passive exposure or false positive
  • Ratio 15-50: Moderate concentration, likely occasional use
  • Ratio 50-150: High concentration, likely regular or chronic use
  • Ratio > 150: Very high concentration, heavy chronic use

Important Notes

This calculator provides general guidance only. Individual factors such as hydration status, kidney function, and metabolism can affect results. Always consult with a healthcare professional or toxicologist for definitive interpretation of drug test results.