What is the best cannabis scale for weighing weed?
The best cannabis scale for weighing weed is a pocket digital scale with 0.01 g readability and a 100 g to 200 g capacity, sold with a calibration weight and a lid that flips into a tray. The American Weigh Scales AWS-100 is the top pick for flower, joints, and edibles at home. For whole-plant harvests, a 600 g scale with 0.1 g readability is the better tool.
Readability is the smallest change the display shows. Capacity is the heaviest load the sensor handles. Match both to the amount of cannabis you weigh in one sitting, and you will not overpay for a scale you never need.
How these cannabis scales were compared
Every pick below was judged on five things that decide whether a scale is useful for cannabis.
Cannabis Scale With Built-In Tray: How It Works and How to Use It
- Readability. 0.01 g for flower and joints, 0.001 g for concentrates, 0.1 g for harvest weights over 100 g.
- Capacity. 100 g covers a quarter pound. 200 g to 600 g covers bulk curing and larger grows.
- Tare button. Zeroes out a jar, tray, or rolling paper so you weigh flower alone.
- Calibration support. A scale you can recalibrate lasts years. Sealed models drift and cannot be fixed.
- Platform and lid. A 2.5 to 3 inch platform holds a full jar. A lid that becomes a tray keeps buds from rolling off.
Best cannabis scale options, ranked
1. Best overall: American Weigh Scales AWS-100
The AWS-100 is the default answer for a reason. It reads to 0.01 g, runs on two AAA batteries, and comes with a cover that works as a weighing tray. The body is small enough to fit in a drawer or a stash bag.
- Capacity: 100 g
- Readability: 0.01 g
- Power: two AAA batteries, auto shut-off
- Extras: flip cover that doubles as a tray, tare function
Some listings bundle a calibration weight and some do not, so check the box contents before you buy. Buy the weight if it is missing. A 100 g scale you can trust is worth a few extra dollars.
2. Best budget: Smart Weigh digital pocket scale
This is the cheap scale that still does the job. It matches the 100 g by 0.01 g spec of the AWS-100 for less money and adds a backlit display that is easier to read in a dim room.
- Capacity: 100 g
- Readability: 0.01 g
- Power: two AAA batteries
- Extras: backlit LCD, tare, counting mode
The trade-off is build quality and calibration support. Expect a lighter plastic shell and fewer places to buy a replacement calibration weight.
3. Best for harvests and bulk curing: 600 g scale (AWS-600 class)
Once you are weighing trimmed colas, curing jars, or a full plant, a 100 g scale runs out of room. A 600 g scale with 0.1 g readability handles the load and still shows a gram of difference.
- Capacity: 600 g
- Readability: 0.1 g
- Power: two AAA batteries
- Extras: large platform, tare, multiple units (g, oz, ozt, dwt)
Skip this class if you only weigh grams for personal sessions. The wider platform is great for jars and useless for a single joint.
4. Best for concentrates and micro-doses: 0.001 g scale (AWS GEMINI-20 class)
A 0.001 g scale reads a single milligram, which matters for hash, rosin, and edibles where a 20 mg dose is the target. Capacity drops to about 20 g, so this is a second scale, not your main one.
- Capacity: 20 g
- Readability: 0.001 g
- Power: two AAA batteries or coin cell, model dependent
- Extras: draft shield or cover, calibration weight on most versions
Draft shields are not a gimmick here. Air movement from a ceiling fan or an open window will move the reading on a milligram scale.
Why does 0.01 g readability matter for weed?
An ounce is 28.35 g, an eighth is 3.5 g, and a quarter is 7 g. A 0.1 g scale rounds to the nearest tenth, so a 3.52 g eighth can read as 3.5 g. That gap looks small on one bag and grows over a full harvest.
For joints, 0.01 g lets you roll the same 0.5 g or 0.7 g each time. Consistent rolls come from a consistent read, not from eyeballing a pile of ground flower.
How do you keep a cannabis scale accurate?
- Calibrate on arrival and after any drop, with the weight the manual specifies.
- Set the scale on a hard, level surface. Carpet and wobbly tables cause drift.
- Tare the container before you add flower, so the jar weight never counts.
- Stay under about 80 percent of capacity. Load a 100 g scale with no more than 80 g at a time.
- Store with the lid on and pull the batteries for long storage to avoid corrosion.
Do you need a scale that meets legal standards?
If you sell cannabis, yes. Retail licensees must use scales that pass state weights and measures inspection, and packaged flower must carry a net weight in metric units. For personal use, an accurate consumer scale is enough.
State rules differ, so check your own regulator before you open a shop or start selling to friends.
Frequently asked questions
Is a 0.1 g scale good enough for weed?
For personal flower, a 0.1 g scale is fine and costs less. If you measure portions you sell, share, or dose into edibles, use 0.01 g. The finer read removes the rounding gap.
Can I use a kitchen scale to weigh weed?
Most kitchen scales read to 1 g, which is too coarse for grams and eighths. Use one only for large harvest weights, like a full plant or a curing jar.
How much should I spend on a cannabis scale?
A workable 0.01 g scale costs about $10 to $25. A milligram scale runs about $30 to $60. Pay more only for calibration support, a warranty, and a metal body.
Do dispensaries weigh flower in front of you?
It depends on the state. Some require sealed, prepackaged containers with the net weight printed on the label. Others allow deli-style weighing at the counter with an inspected scale.
Do I need a calibration weight?
Yes, if you want the scale to stay trustworthy. Calibration weights are cheap, and without one you have no way to know whether the reading has drifted after a bump or a battery change.
Which cannabis scale should you buy?
Buy the AWS-100 if you weigh flower, joints, or edibles at home. Buy a 600 g scale if you process a full harvest and cure in jars. Buy a 0.001 g scale if you work with concentrates or make precise edibles.
Add a calibration weight to whichever model you choose, and recheck the scale every few months. That habit matters more than the brand on the lid.