Weed Drug Test Calculator
Estimate how long THC remains detectable in your system
Calculate Detection Time
Until Oct 25, 2023
Detection Windows by Test Type
Urine Test
Most common method. Detection window ranges from 3 days to 30+ days depending on usage frequency.
Blood Test
Detects THC for 1-2 days in occasional users, up to 7 days in heavy users.
Hair Test
Can detect THC for up to 90 days. Less common but has the longest detection window.
How THC Detection Works
THC (tetrahydrocannabinol), the psychoactive component in marijuana, is stored in the body’s fat cells. The time it remains detectable depends on several factors:
Usage Frequency
Occasional users eliminate THC faster than regular users. Heavy users may have detectable levels for a month or more.
Body Fat Percentage
THC is stored in fat cells, so people with higher body fat may retain THC longer.
Metabolism
Individuals with faster metabolisms process THC more quickly than those with slower metabolisms.
Potency & Consumption Method
Higher potency products and edibles may stay in your system longer than smoking.
Tips to Reduce Detection Time
Hydration
Drink plenty of water to help flush toxins from your system.
Exercise
Regular physical activity can help burn fat where THC is stored.
Healthy Diet
Eat a balanced diet rich in fiber and antioxidants.
Important Disclaimer: This calculator provides estimates only. Detection times vary significantly between individuals. This tool should not be used to determine if you will pass a drug test. Always consult with a medical professional for health-related decisions.