THC Drug Test Calculator

Estimate urine detection windows

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Usage Frequency

Body Fat Percentage (%)

Metabolism Speed

Hours Since Last Use

Likely Detectable

~7 day(s) remaining in detection window.

Est. Detection Window

Time Elapsed

*Estimates based on general pharmacokinetic models (50 ng/mL immunoassay cutoff). Individual results vary significantly based on hydration, exercise, and genetic factors. This is NOT medical advice.

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About THC Drug Test Calculator

The THC Drug Test Calculator uses pharmacokinetic approximations to estimate your urine detection window for THC-COOH metabolites at the standard 50 ng/mL immunoassay cutoff. Factors include usage frequency (single to chronic), body fat percentage (THC is lipophilic), and metabolism speed to model a personalized clearance timeline.

THC Drug Test Calculator Features

Pharmacokinetic half-life modeling
Body fat % adjustment factor
Elapsed time countdown

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