Jan 052013
 January 5, 2013

Pass Your Test The data used to create this infographic is gathered from research on drug testing methods and the information presented by drug screen manufacturers. Some resources include Redwood ToxicologyCannabis Drug Testing,California NORML. The information presented is only a guide or estimate since drug testing has many variables that can influence a positive or negative outcome.

How Long Does Marijuana Stay in your System? is the most frequently asked question that we receive at HomeHealthTesting.com. While there is no definitive answer, we have presented some guidelines. The only way to really know if you are positive is to test yourself. You can test yourself with a cheap drug test and know if you are positive. Buy a THC urine drug test

How long does THC stay in your system?

The most common drug tests used are urine, saliva and hair. Each test has a different detection time which is important to know. The urine drug test is the most commonly used because it is cheap and has a longer detection time than a saliva test. There are several very important factors that can influence how long THC will be present in your urine:

  • Weight
  • Body Fat
  • Amount Used
  • Frequency of Use

Since these factors will vary greatly for each individual, there are no definitive guidelines to tell you how long you can test positive for THC.

On a Urine Drug Test, THC will appear as a positive within 2-5 hours of use. How long it will still show on a urine drug test is estimated based on frequency of use, but does not take into account the weight and body fat of the marijuana user:

  • One Time User may show positive for 1-6 days
  • Moderate User may show positive for 7-13 days
  • Frequent User may show positive for 15 or more days
  • Heavy User may show positive for 30 or more days
  • Some Heavy Pot Smokers have reported being positive 45-90 days after quitting

On a Saliva Drug Test, THC will test positive within one hour of use, but may only show positive for about 12 hours after last use.

On a Hair Drug Test, THC will show up about 7 days after use and most hair drug tests will test for a 90 day period. However, THC does not always bind to the hair follicle which makes it not always considered an accurate testing method for marijuana use.

The most reliable way to know if you are testing positive for marijuana use is to drug test yourself.

how long does weed stay in your system
By: HomeHealthTesting.com

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About Johnny Green

Johnny Green is a marijuana activist from Oregon. He has a Bachelor's Degree in Public Policy. Follow Johnny Green on Facebook and Twitter. Also, feel free to email any concerns.
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  • Adrianna Hernandez

    Okay im freaking out i applied for a job at walmart an i have an interview set up for tommorow r they going to give me a U.A? (Right away)

    if i fail can i apply again?

    • stephanie

      They will send u to lab asap but on way buy detox

  • Jackx

    I barely I mean barely smoke. Smoked a bunch before a festival and again two weeks later. Smoked probably a few times more all last year but I would say only 10 times in all of last year. I havent smoked in 2 months, I am 5’7 and weigh 200lbs. Do you think its out of my system for a drug test? I was thinking of buying a tester kit just in case bc I am nervous af

    • DrugTestDave

      Always best to test yourself! Toxins can linger in your fat cells and without a natural flush of heavy fluids, exercise and non fatty foods you could still have low amounts in your system. If you test positive you should consider a detoxification program to flush the remaining toxins from your blood and urine. To learn more visit http://passyourtest.com/permanent.html

  • Julian Hernandez

    I am 17 years old, 5’8, 188, about 20-25% body fat. These last two weeks I’ve been eating really clean and have lost six pounds, I also play basketball at a varsity level and I tend to sweat heavily. Next week, I’m gonna be eating some brownies (small amounts)2-3 times that week, but will make sure I drink enough water and try to exercise because I’m gonna be at a retreat. About how long will it take for me to be clean? Havent smoked since December. Thanks in advance!

  • Mike

    I used to smoke frequently about a month ago until I was becoming worried about being drug tested. I have not smoked since and I am thinking about smoking 3 blunts this weekend (one today, two tomorrow) how long do you think it would stay in my system? I am about 5’8 weighing 120-ish and I have very very fast metabolism (sometimes I need to poop while I’m eating… that fast).. all answers will be appreciated. Thanks.

    – Mike

  • Mike

    I used to smoke frequently (about 1-3 times a weekly) about a month ago. I haven’t smoked anything since except cigs and I’ve been wanting to smoke some bud with my
    friends lately. I will smoke one blunt today and about 2 tomorrow. How long would it stay in my system (worried about being drug tested by parents) I am 16, weigh about 120 and I’m 5’7 with VERY fast metabolism. If you need any other information just let me know. All answers will be appreciated.

    – Mike

    • Mike

      Body fat is around 10-12%. I go to the gym daily.

  • Mrs H

    I smoke a whole blunt NYE… And i have a drug test Monday 1/25…im 5ft 2 in..and 170lbs….u think imma pass…its a urine test

    • Mike

      yeah bro. you’re good. be drinking a glass of water every 30 mins but do not over do it. but you’ll be fine anyways

  • John green

    I smoke about a bowl pack a day for the past couple of years of some pretty good stuff. I’m 6’4 and 165 lbs with a very fast metabolism. I quit smoking yesterday and may have a urine test here within the next 2 weeks. Think I will pass?

    • DrugTestDave

      You very well might pass if you have low body fat and a fast metabolism! Tons of water, cranberry juice and no fatty foods is essential to a natural flush. One way to make sure you are clean is get a drug test kit at your local drug store or online. Using a safe natural detoxification program that permanently flushes your body of toxin can speed your bodies natural detoxification process to fully cleanse your blood and urine in 3-6 days. The program we recommend comes with 2 home test kits to verify you are clean.

      To find out more visit http://passyourtest.com/permanent.html

  • Young Susano’o

    I have not smoked in roughly 14 days or more. I was a heavy smoker but before quitting i wa sdown to a blunt a day. I have a drug test in the AM. Am i totally done? I have been working out everyday and drinking water and cranberry juice

    • DrugTestDave

      Does not sound like enough time – you may still be able to have a reliable product sent to you go visit http://www.passyourtest.com and give them a call.

    • TxBcs

      It’s hard to say.. I would buy a self test at Walgreens just for clarification. I quit for 10 days, went in this morning to take a UA and tested positive for THC. I was pretty pissed. But heavy smokers it can stay in your system for up to 30 days or more

  • Tammy

    i smoke a bowl or two every night. i’m 5’6″, 170 lbs. i’m sure my metabolism is not high. how long before i would pass urine or swab test?

    • Phil J.

      Swab test is the easiest thing to pass. The easiest just stop for 12 hrs brush and rinse your mouth out and you’re good. I’ve passed 2 of those and I smoked the night before. For the urine test it depends on what your smoking, when you have to take the test and what methods your using to pass

  • Nino

    I smoked last Tuesday I don’t smoke a lot and I have a test next Thursday will I be good??

  • Nino

    I smoked maybe 5 times in my life

  • dave

    How long will only one or two tiny hits stay in my system like a nug smaller than a corn cournel???

  • Shawn Williams

    Hey I haven’t smoked in almost 30 days and i’ll soon be getting drugged tested most likely sometime mid next week. I used to smoke maybe 3times a day. do you think i’ll be clean by next week? I’m like 5’8 I weigh about 145lbs. Please respond

  • Brent Gogel

    How long will 2 Marinal pills show on a urine test

  • Donald G. Frazier

    i have quit 2 weeks ago and prior I to that quit for 3 or 4 days. I was a nightly smoker-maybe a couple of bowls a night. i have passed tests when I had only smoke a couple of days before-but I was more of an occasional user. I am testing negative on test strips I got off the internet that were showing positive 2 weeks ago. I am getting the STRIP Detoxifier sold in a nearby head shop. I will be testing in about 3 weeks. I’m still paranoid as this is a high paying job.

  • lazerblazer

    I’m 5’7 and weigh 165, I smoked 12 days ago. I workout and play basketball, and sweat a lot. I also drink a ton of water daily. should i pass a test within the next couple days or week