What is the best cannabis scale for weighing weed?
The best cannabis scale for weighing weed is the American Weigh Scales AWS-100. It resolves to 0.01 grams, holds a 100 gram capacity, tares at the touch of a button, and ships with a 100 gram calibration weight.
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For a home grower or a countertop stash jar, that combination of precision and price is hard to beat.
Comparison at a glance
- Best overall: American Weigh Scales AWS-100 (100 g x 0.01 g)
- Best budget: Smart Weigh Digital Pocket Scale (100 g x 0.01 g)
- Best for bulk flower: American Weigh Scales AWS-600-BLK (600 g x 0.1 g)
- Best for retail compliance: Ohaus NTEP-certified bench scale
1. Best overall: American Weigh Scales AWS-100
The AWS-100 is the scale most cannabis growers end up buying twice, once for the trim table and once for the kitchen. The flip-up lid doubles as an expansion tray, which keeps loose flower from rolling off the platform.
It reads grams, ounces, carats, and grains, and the backlit display stays readable in a dim drying room. Because the calibration weight is included, you can verify accuracy any time a reading looks off.
- Resolution of 0.01 g is tight enough to weigh a single gram of flower
- 100 g capacity handles a quarter pound with room to spare
- Powered by two AAA batteries, so no charging cable to lose
2. Best budget: Smart Weigh Digital Pocket Scale
The Smart Weigh pocket scale costs less than a gram of top-shelf flower and still delivers 0.01 g resolution. It covers 100 grams, tares, and counts pieces, which makes it handy for edibles and pre-roll batches.
The tradeoff is build quality. The platform is small and the body is plastic, so it belongs in a drawer rather than a commercial workspace.
3. Best for bulk flower: American Weigh Scales AWS-600-BLK
Once you are weighing full jars or a pound of cured flower, a 100 gram scale runs out of capacity fast. The AWS-600-BLK stretches to 600 grams but drops to 0.1 g resolution, which is fine for ounces and coarse for a single joint.
Most serious home growers keep both: a 0.01 g pocket unit for portions and a wider platform for harvest totals.
4. Best for retail compliance: Ohaus NTEP-certified bench scale
Dispensaries that sell by weight in regulated markets often need a legal-for-trade scale certified under NTEP. Ohaus builds bench and compact scales with that certification, plus the service network to keep them calibrated.
Expect to pay several hundred dollars and to schedule annual recertification, which is normal for any device used in commercial trade.
How to choose a cannabis scale
- Resolution: 0.01 g for eighths and grams, 0.1 g for ounces and up
- Capacity: pick at least double the heaviest amount you plan to weigh
- Calibration: buy one that includes or accepts a check weight
- Tare: lets you zero out a jar or tray before adding flower
- Display: backlit is worth the extra few dollars
Frequently asked questions
Do you really need a 0.01 g scale to weigh weed?
Yes, if you are splitting grams or checking a dispensary eighth. A 0.1 g scale can be off by a tenth of a gram, which is roughly a 3 percent swing on a 3.5 gram portion.
Are cannabis scales legal in the US?
Digital pocket scales are legal to buy and own in every US state. Regulations apply to scales used in commercial sales, where states may require NTEP certification and periodic inspection.
How often should you calibrate?
Calibrate a new scale before first use, then again after any drop or move. For regular use, a monthly check with a known weight keeps readings honest.
Why does my scale read zero after I place the tray?
Press tare once the empty tray is on the platform. The display resets to zero and every following reading reflects only what you add.