We scoured the internet searching for reviews of the best digital scales that offer accuracy down to the milligram level. We came up with a list of the top 10 milligram scales. One or more of the scales below should be exactly what you need to get the job done.
Why buy a milligram scale?
Maybe you’re weighing out supplements, fine jewelry, or medicine where every milligram is important and can mean the difference between in performance, taste, or hundreds of dollars.
If you don’t have time to look through our whole list, then you may want to check out the My Weigh iBalance 2600. It has a capacity of 2600 grams and measures down to the 0.1g level. It has a solid and functional design, and easy to read display, and tare and count functions to boot. Our #2 spot goes to the American Weigh Scales GEMINI 20
How to Choose a Digital Scale?
If you need to weigh large objects (think more than 50 grams), on a consistent basis, then perhaps a precision digital scale isn’t right for you. You may need a kitchen scale to accommodate larger items.
Generally speaking, the greater the scale’s range, the larger the increments and vice versa. If, on the other hand, you need very small increments for very accurate readings, think increments of 0.01, then a milligram scale may be right for you.
These scales can weight tenths or even hundredths of a gram, and some can even convert the unit of measurement into carats, oz., grams with the push of a button… Which may be perfect for gold, gems, diamonds, and other types of jewelry.
A quality scale will have a tare feature that allows for net weight readings. Perhaps you need to put the item or ingredients that you’re weighing into a plate or bowl. Well, you can account for the extra weight of the bowl with a tare feature (sometimes referred to as a “Zero” button). Just place the bowl on the scale and press the tare button to reset the displayed weight back to zero.
You can also use the tare feature to measure several items at once by placing the item on the scale, pressing the tare button to reset the displayed back to zero, then placing the next item on the scale until you’re finished weighing your items.
Units of Measurement
Many scales allow measurement in different unit weights: from carats, ounces and grams to carats, pounds (lbs.) and grains.
And without further ado, here are our top picks:
My Weigh iBalance 2600 YT
This is a top of the line scale that provides both long term durability and reliable accuracy.
It’s made of stainless steel with durability so good that it’s backed by a 30-year warranty. It has a large and easy to read bright backlit LCD display and ample space for weighing any number of items.
It can support up to 2600 grams / 91 oz. and measures in increments of 0.1 grams. It offers weight measurement in several different units such as pounds, ounces, carats and grains etc…
It has a tare function of course, which can subtract the weight of any bowl or tray (included) you use to hold your ingredients or objects. It supports a counting feature and an auto shut off feature to conserve battery life (can also be plugged in)
For technical readers, it uses a 26000 division load cell rather than using multiple sensors it has auto-zero tracking, and can compensate for changes with an integrated thermistor. Full review here
WAOW Digital Milligram Scale – Reloading Jewelry Scale
For those who don’t necessarily need a large amount of weighing capacity, but rather a precise and accurate scale good for weighing small items like jewelry, the WAOW Digital Jewelry scale may be just what you’re looking for.
It can weigh up to 100 grams in increments of 0.001 grams/ 0.1gn. Now, take it with a grain of salt when you see most manufacturers state this level of accuracy because typically only scientists using lab scales costing thousands of dollars offer that level of consistent precision.
Nevertheless, it’s equipped with a draft shield to prevent air currents and comes with everything you need: a weighing pan, tweezer and a calibration weight. Not bad for a very affordable scale.
Features: It has a tare feature to ensure you get NET readings, PCS, a HOLD function to lock in your weight readings, auto shut off, and can count in any number of units including carats, ounces, grams, dwt, and gn.
Capacity: Since it can weigh up to 100g, it could work for even weighing heavier jewelry such as gold and gemstones and takes 2 AAA included batteries.
American Weigh Scales GEMINI 20
Design: A sleek and stainless steel finish LCD display, 4 easy to use buttons and a protective see through lid to protect the surface from damage and air current.
Features: 4 buttons allow you to control the units of mass, tare feature, and power (on/off). It can weigh in 1 milligram/0.001g increments (which is doubtful for a non-lab scale, not to mention a scale at this price) and measures in several weight units: carats, grams, ounces and grains, allowing you to measure anything from supplements, food, spices and jewelry to medicine and alternative medicine.
It comes with a handy tray for measuring items, tweezers and a calibration weight for ensuring long term accuracy. Full Review here
American Weigh Scales AWS 600
This might be the most affordable scale that you can buy. For under $10, you can get a portable lightweight scale with a 600 gram capacity that measures in 0.1g increments, perfect for measuring medicine, supplements
It has an intuitive design with a 5 digit LED display and 3 button weighing mode control unit allows for measurements in grains, carats, grams and ounces.
Although it comes pre- calibrated, there is an optional calibration weight that we highly recommend you purchase as well. It comes with a Tare feature and a 10 yr warranty.
It has over 8K reviews on Amazon averaging out to 4.4 stars so it’s clearly a popular item so maybe we’re being unfair. That said, we couldn’t help but notice that the first reviews that came up on the listing were all negative.
Smart Weigh GEM20 Precision Digital Milligram Scale
This is one of the milligram scales on the market. This small scale is a great digital scale for jewelers that need to weigh gold, gems, diamonds and other precious metals. It has a protective flap cover (draft shield), a capacity of 20 grams with a stated 0.001g accuracy.
It counts in ounces, carats, and grains and comes with two 10g calibration weights for any additional calibration needed as well as tweezers and a weighing tray.
It’s equipped with a tare function (calculates the weight of your item(s) by subtracting the weight of the container you may be using) and easy button operation.
AMIR Digital Kitchen and Mini Pocket Jewelry Scale
This is another great choice for jewelers as this small, lightweight scale can measure up to 50g in increments of 0.001g, perfect for diamonds, carats, powder, medicine, nutritionists and more.
It has a protective lid and a bright blue backlit display and is equipped with 4 easy to operate buttons that allow you to MODE switch between measurement units including carats, grams, ounces, and grains.
It comes with a calibration weight, tweezers, and a container tray. It has an auto shut off feature that kicks in after 180 seconds to conserve battery life.
TedGem Digital Milligram Scale – Reloading Jewelry Scale
This small portable scale is designed for people on the go who need accuracy and precision at a moment’s notice.
It comes with a see through protective cap, tweezers, a calibration weight, a weighing tray and 2 x AAA batteries.
It has a capacity of 50 g and can weigh in 0.001g increments in several measurement units including oz, carats, grains, and grams.
Smart Weigh SWS100 Elite Digital Pocket Scale
This portable and pocket friendly digital scale features a black body with stainless steel weighing surface and a bright backlit LCD display. It is Amazon’s choice and is great for home use.
It holds up to 100 grams and can measure in 0.01g increments. It can of course weigh in a multitude of different units as well.
It has a tare function to ensure that you can place a container on the scale to hold whatever it is you’re weighing and it will subtract the container’s weight.
It doesn’t come with any calibration weights, tweezers, or weighing trays so this may not be your first choice if you’re a jeweler.
Smart Weigh SWS600 Elite Pocket Digital Scale
Another solid digital scale from the established Smart Weigh brand. This model measures up to 600 grams (1.32 lbs.) in increments of 0.1 grams. This is basically the only difference between the SWS600 and SWS100 mentioned above.
U.S. Solid Digital Analytical Balance Precision Scale for Labs
Lastly, for those of you who really need commercial level accuracy without breaking the bank (keep in mind most lab scales cost several thousands of dollars), there is the Torbal Analytical Balance Scale.
It has a capacity of 60g and more importantly, it offers true precision down to 0.0001g at +-0.002 accuracy. There are very few reasons why you would need a scale this accurate and precise down to the sub milligram level but hey, we thought we’d mention it for the few of you that do.
It has a draft shield, stainless steel pan, LCD backlight, tare feature, part count function, and measures in ounces, carats, grams and pounds.
What to Keep In Mind When Using A Digital Scale
Make sure you’re at room temperature. Allow your scale to warm up for a few minutes. Metal contracts in the cold so keeping your machinery away from windows that may carry a draft, fans or otherwise cooler environments and giving it some time to warm up will allow for the most accurate readings.
Cheap scales may turn off after only 90 seconds, but again, try to let the scale warm up for at least 30 seconds if you’re in a rush.
Be sure to measure on a stable flat surface free of noise or vibrations and be sure that you’re not directly on any carpet or soft material.
When not in use, your scale should read zero. If it’s above or below, then you need to calibrate your scale. These small weights are usually supplied with the device and should be used often to ensure that you are getting the most accurate reading as major movements, bumps, and shocks can throw your scale readings off.
Caring for our Scale
As with any digital device, the scale should be kept clean and free of dust and residue. This is especially important when measuring small amounts as the slightest issue could cause a misreading.
Whether you’re measuring out gold, coffee, medicine or alternative medicine ;), there is a scale for you.
A quick primer on the metric system for you alternative medicine fans.
1 gram = 1000 milligrams. 1 gram is a very small unit of measurement. We’re talking single dollar bill or a paper clip. You may need specificity down to 0.1g or even 0.01g but anything beyond that is probably overkill.
There are 28 grams in an ounce. Many uh-medicinal suppliers already know this of course. When you buy an eighth, you are buying 3.5 grams.
In a nutshell, determine the range (ie the smallest to largest item) that you’ll need your scale to accommodate as well as the level of precision you’ll require and then base your decision on the design, price, and ease of use.