Best Calibration Weights of 2026

Brian Howie Avatar
Brian Howie
Last Updated: Jan 19, 2026

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Calibration weights are essential tools used in a variety of industries, including laboratory research, quality control, and manufacturing. These weights are used to calibrate measuring instruments such as scales, balances, and weighing machines to ensure accurate measurements. Calibration weights come in various shapes, sizes, and materials, including stainless steel, brass, and cast iron. They also have different accuracy classes, ranging from E1, which is the most accurate, to M3, which is the least accurate. Calibration weights are a necessary investment for any business that requires precise measurements and quality control.

At a Glance: Our Top Picks

Fuzion Calibration Weights Set Cover #TOP 1
Fuzion Calibration Weights Set
ftb score rating icon 9.8
Omama 500g Calibration Weight Cover #TOP 2
Omama 500g Calibration Weight
ftb score rating icon 9.7
Tsurpcao 1000g M1 Calibration Weight Cover #TOP 3
Tsurpcao 1000g M1 Calibration Weight
ftb score rating icon 9.5

Top 10 Calibration Weights

#TOP 1

Fuzion Calibration Weights Set

Cal-9
9PCS-210g Total
Fuzion Calibration Weights Set Cover
Fuzion Calibration Weights 210g, M1 Class 9 PCS Stainless Steel Scale Calibration Weight Kit, 1g 2g 5g 10g 20g 50g 100g Calibration Weight with Storage Box, Tweezers for Digital Scale, Gram Scale

The Fuzion Calibration Weights Set includes 9 pieces of stainless steel weights (ranging from 1g to 100g) with a durable and precise design, perfect for calibrating digital scales. It also comes with a stainless steel tweezer to easily place the weights and a portable storage box made of durable ABS material. Keep your scale always calibrated and ready to provide accurate measurements.

What We Like
Accurate weight measurements
Compact and portable design
Durable construction
Convenient carrying case
Great value for money
What We Don't Like
Case is slightly awkward
Tweezer placement could improve
#TOP 2

Omama 500g Calibration Weight

Silver
500G
Omama 500g Calibration Weight Cover
Weigh Scales Calibration Weight,Gram Calibration Weight,Scale Balance Calibration Weight,for Digital Scale Balance (500G)

The Omama Calibration Weight is a 500-gram tool designed to enhance the accuracy of your electronic scales. Made with high-quality chrome plating, it boasts a shiny and elegant appearance, making it a durable addition to your calibration toolkit. This weight is essential for calibrating various scales, including digital jewelry scales and precision balances, ensuring you get precise measurements every time. With a permissible error of just +/-0.003g, you can trust that your readings will be reliable and accurate. Its user-friendly design allows for easy handling, making calibration a breeze.

What We Like
High accuracy
Great quality
Easy calibration
Good value
Reliable performance
What We Don't Like
Not specified
#TOP 3

Tsurpcao 1000g M1 Calibration Weight

1000g
Tsurpcao 1000g M1 Calibration Weight Cover
1000g Calibration Weight, M1 High Precision Scale Weights, for Digital Scale, Kitchen Scale (1000g)

The Tsurpcao 1000g Scale Weight is designed to help you keep your digital or kitchen scale accurate. Made with durable steel and a chrome plating, it resists rust and lasts a long time. This calibration weight is carefully tested to ensure precise measurements, which is important when you need reliable results. It offers high precision with an M1 rating, making it perfect for calibrating scales that measure very small amounts, from 0.01g to 0.001g. Using this weight helps you maintain the accuracy of your scales, so your measurements are always dependable.

What We Like
Accurate measurement
Good value
Durable quality
Fast shipping
Practical storage case
What We Don't Like
Basic packaging
Case may arrive damaged
#TOP 4

Tsurpcao M1 Calibration Weights Set 1kg

10g-500g
Tsurpcao M1 Calibration Weights Set 1kg Cover
Calibration Weigh 10g 20g 50g 100g 200g 500g 8PCs/Set Total 1kg,M1 High Precision Scale Weights, for Digital Scale, Kitchen Scale (10g-500g)

The Tsurpcao Calibration Weights offer a complete set of eight precision weights totaling 1 kilogram, ideal for keeping your digital or kitchen scales accurate. Made with durable steel and chrome plating, these weights resist corrosion, ensuring long-lasting use. Each weight is carefully tested for high precision, so you can confidently calibrate your scales for reliable measurements. Designed for accuracy with M1 precision standards, these weights work well with scales that measure as finely as 0.01 to 0.001 grams, making them perfect for a variety of precision tasks.

What We Like
Accurate measurement
Good value
Durable construction
Fast shipping
What We Don't Like
Basic packaging
Case may break
#TOP 5

MAXUS 100g Calibration Weight

D210
MAXUS 100g Calibration Weight Cover
MAXUS 100 Gram Class M1 High Precision Stainless Steel Calibration Weights

The MAXUS Calibration Weight is designed to provide high precision in your measurements. With its adherence to Class M1 standards, you can rely on it for accurate and consistent results. Weighing exactly 100 grams, it is perfect for calibrating various scales, ensuring they function correctly. Constructed from durable stainless steel, it offers longevity and resistance to wear. Its compact design makes it easy to handle and store, while the smooth surface allows for quick and simple cleaning, making it convenient for regular use.

What We Like
Accurate weight measurement
Easy to use
Good price value
Includes calibration weights
Works for multiple purposes
What We Don't Like
Slight weight variance
#TOP 6

Bekith 17-Piece Calibration Weight Set

CA-CalibrationWeight
Small
Bekith 17-Piece Calibration Weight Set Cover
Bekith 17 Pcs Precision Weight 10mg-100g Precision Steel Calibration Weight Kit Set with Tweezers for Digital Balance Scale, Jewellery Scale

The Bekith Calibration Weight Set includes a comprehensive range of weights from 100g down to 500mg, making it ideal for various applications. You can use these precision weights for digital jewelry scales or in laboratory settings, ensuring accurate measurements every time. The weights are made of durable chrome steel, giving them an elegant and shiny appearance. With a permissible error of only +/-0.003g, you can trust that your measurements will be precise. Plus, the set comes in a padded carrying case, making it easy to transport and store safely.

What We Like
Accurate measurement
Wide weight selection
Sturdy storage case
Affordable price
Useful tweezers included
What We Don't Like
Small weights not labeled
Tweezers slightly awkward
#TOP 7

Bekith Calibration Weights Kit

B-CalibrationWeight1kg-8pc
Silver
Bekith Calibration Weights Kit Cover
Bekith 8PCS 1000g Calibration Weights, Gram Precision Steel Scale Calibration Weight Kit Set 10g 20g 50g 100g 200g 500g, Calibration Weight with Tweezers for Digital Scale Balance, Lab Scale

The Bekith Calibration Weights Kit includes multiple precision calibration weights, a plastic storage case, and a calibration weight tweezer. Made of solid feeling coated metal, these stainless steel weights are anti-oxidation and ensure the quality of the weight will not be damaged and can be reused multiple times. The precision calibration gram function is ideal for calibrating weights, electronic balances, and scales for general laboratory, commercial, and educational purposes. Suitable for digital kitchen scales, jewelry scales, diamond scales, and precision balance tests.

What We Like
Accurate calibration
Good value for price
Sturdy storage box
Versatile usage
Convenient size
What We Don't Like
Minor packaging issues
Slight odor on arrival
#TOP 8

HFS M2 Scale Balance Calibration Weight Set

HFS
CKW-1000G
1000g
HFS M2 Scale Balance Calibration Weight Set Cover
HFS(R) Calibration Weight Set 1000g with Case and Tweezers for Digital Scale, Gram Scale-M2 Class 8pcs 10g,20g,20g,50g,100g,100g,200g,500g

The HFS M2 Scale Balance Calibration Weight Set is made of 45 steel with a chrome plated surface, making it durable and rust-resistant. The set includes eight pieces of weights ranging from 10g to 500g and comes in exquisite packaging with a special weight box and plastic tweezers to prevent damage during transportation. The M2 class ensures high performance and accuracy, making it a suitable choice for calibration needs.

What We Like
Accurate weight measurements
Durable storage case
Great value for price
Variety of weights included
Useful for calibration
What We Don't Like
Tweezers quality could improve
Minor cosmetic marks
#TOP 9

MAGIKON M2 Class Steel Calibration Weight Kit 205g

E2027thirdversion
SILVER
24.08 cubic inches
MAGIKON M2 Class Steel Calibration Weight Kit 205g Cover
MAGIKON Precision Steel Scale Calibration Weight Kit, M2 Class, 205 Gram

The MAGIKON Calibration Weight Kit offers a total of 205 grams, perfect for calibrating your scale with precision. Whether you use digital jewelry scales, work in a lab, or need weights for commercial or educational tasks, this kit covers your needs. It includes a set of carefully measured weights—100g, 50g, 20g (two pieces), 10g, and 5g—to give you reliable and consistent results every time. Each weight is designed for easy handling, so you can place them on your scale without hassle, making your calibration process smooth and accurate.

What We Like
Accurate total weight
Wide application use
Varied weight set
Easy-to-handle design
What We Don't Like
Minor case or weight defects
Small weights may shift in case
#TOP 10

American Weigh Scales 500g Chrome Calibration Weight

B00SSK3YNO
Silver
500 Gram
American Weigh Scales 500g Chrome Calibration Weight Cover
American Weigh Scales Calibration Weight for AWS Digital Scale, Chrome Plated, Carbon Steel, 500G(Chrome Finish)

The American Weigh 500g Weight is designed to help you keep your digital scales accurate and reliable. Made with high-quality chrome-plated stainless steel, it offers strong durability and resistance to rust, so it lasts a long time. This calibration weight meets strict OIML Class M2 standards, ensuring precise measurements when you calibrate your scale. Plus, the mirror-polished finish not only looks great but also reduces magnetic interference, giving you more consistent results. With trusted quality from a top brand and a solid warranty, this weight makes calibrating your scale simple and worry-free.

What We Like
Accurate and reliable calibration
Good build quality
Affordable price
Suitable for high-precision work
Versatile weight options
What We Don't Like
Minor risk of dents or dings
Packing could be improved
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What can I use as a calibration weight?

If you don't have calibration weights, you can use a candy bar or coins as an alternative. Pennies made after 1983 weigh exactly 2.5 grams, which can be used for calibration purposes.

2. What size calibration weight do I need?

The size of the calibration weight needed depends on the scale's capacity. Generally, weights equal to at least 12.5% of the scale's capacity are recommended. However, some lower capacity scales may require weights equal to the full capacity.

3. What is the most accurate calibration weight?

The most accurate calibration weights are Class 0, Class 1, E1, and E2. These weights are highly sensitive and accurate, but they require clean environments and special handling. They are used to calibrate high-precision balances and are considered to have extra-fine accuracy.

4. Are calibration weights necessary?

Yes, calibration weights are necessary in most labs to ensure accurate readings from lab balances. They help verify the accuracy of the scales and ensure reliable measurements.

5. What weighs 100 grams to calibrate my scale?

To calibrate a scale with a 100-gram weight, you can use objects like 20 nickels or 40 pennies, which collectively weigh 100 grams. Make sure to wash the scale with water before using the coins and consider using acetone or ethanol for further cleaning.

6. How accurate are calibration weights?

Certified calibration weights have a tolerance of +/-230 milligrams. Using certified calibration weights ensures that your scale is calibrated correctly and provides accurate weighments, which is crucial for accurate readings and proper patient care.

Editor's Notes

During our calibration weight research, we found 24 calibration weight products and shortlisted 10 quality products. We collected and analyzed 29,490 customer reviews through our big data system to write the calibration weights list. We found that most customers choose calibration weights with an average price of $13.78.

The calibration weights are available for purchase. We have researched hundreds of brands and picked the top brands of calibration weights, including Fuzion, Omama, Tsurpcao, MAXUS, Bekith. The seller of top 1 product has received honest feedback from 579 consumers with an average rating of 4.9.

Written by
Brian Howie Avatar

Brian Howie is a content writer and senior industrial designer. After graduation from Westminster College, he has been engaged in product design and manufacturing for 18 years. Brian Howie has always found great pleasure in designing industrial products and sharing his ideas and experience online.