Best Calibration Weights of 2025

Brian Howie Avatar
Brian Howie
Last Updated: Jan 14, 2025

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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
HFS M2 Scale Balance Calibration Weight Set Cover #TOP 3
HFS M2 Scale Balance Calibration Weight Set
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
Sturdy and convenient case
Compact and portable design
Wide variety of weights
Exceptional quality and craftsmanship
Great value for money
What We Don't Like
One weight slightly inaccurate
No carrying bag included
#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
Perfect size for calibration
Useful for crafting projects
Great as paperweights
Convenient for food scales
Accurate for grain weighing
What We Don't Like
Not specified
#TOP 3

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
High accuracy for calibration
Durable and compact case
Great value for the price
Reliable performance
Suitable for general use
What We Don't Like
Minor oil marks on weights
Some weights slightly inaccurate
#TOP 4

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 weights
Good quality metal construction
Compact and well-packaged case
Inexpensive for functionality
Versatile for various uses
What We Don't Like
Case quality could improve
Tweezers not suitable for heavy weights
#TOP 5

TOODOO Calibration Weight Set for Digital Scale

Silver
TOODOO Calibration Weight Set for Digital Scale Cover
TOODOO 1g 2g 5g 10g 20g Gram Set for Digital Scale Balance and 1 Piece Calibration Weight Tweezer, Silver

This calibration weight set includes 5 pieces of calibration weight (1g, 2g, 5g, 10g, 20g) and 1 piece of tweezer. The steel construction provides stability and resistance to corrosion, along with a chrome plated finish. The set is suitable for digital pocket scales, jewelry carat scales, diamond scales, and precision balance tests. The calibration gram allows for calibrating weights or electronic balances and scales. Additionally, the included anti-static tweezer makes it more convenient for picking calibration weight.

What We Like
Accurate weights
Handy tweezers included
Great for scale calibration
Fast delivery
What We Don't Like
No carrying case included
Missing 50g weight
#TOP 6

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
High quality materials
Durable and long-lasting
Stylish design
Easy to use
Great value for money
What We Don't Like
Limited color options
#TOP 7

Bekith 17-Piece Calibration Weight Set

CA-CalibrationWeight
silver
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
Affordable set of weights
Accurate to 10mg
Well-marked weights
Good quality carrying case
Useful for various applications
What We Don't Like
Small weights lack labeling
Clunky tweezers included
#TOP 8

QP 1000g Calibration Weight Set

QP
CAL SET-1000
1000g Set
QP 1000g Calibration Weight Set Cover
QP Calibration Weights 1000g, 8PCS OIML Class M1 High Precision Scale Calibration Weight Set, 10g 20g 50g 100g 200g 500g Calibration Weight with Tweezers for Digital Scale, Gram Scale, Lab Scale

The QP Calibration Weights set includes eight different weights, offering a total of 1000g for precise calibration of various scales. Each weight is made of high-quality stainless steel, ensuring durability and accuracy in your measurements. The included plastic tweezers allow you to handle the weights easily, making switching between them convenient. With triple protection packaging, you can trust that your weights will arrive safely and undamaged, ready for use in labs, industries, or even at home.

What We Like
Affordable alternative for high-end scales
Good for home use calibration
Impressive design and weight
Accurate measurements for most tasks
Versatile for various applications
What We Don't Like
Odor upon unboxing
Inconsistencies in some weights
#TOP 9

UCEC Calibration Weight Kit

UCEC_UCEC00158
17 PCS
UCEC Calibration Weight Kit Cover
UCEC Calibration Weights for Digital Scale, 10mg - 100g Gram Weights Kit, Precision Stainless Steel Balance Scale Calibration Weight Set with Tweezers for Lab Educational Science

The UCEC Calibration Weight Kit is a set of 17 pieces of different weights, made of high-quality and solid feeling coated metal with chrome-plated surface, and comes with a tweezers for convenience. It has high accuracy with a permissible error of -0.003 to +0.003g, making it suitable for calibrating digital pocket scales, jewelry carat scales, diamond scales, and precision balance tests. This kit is ideal for general laboratory, commercial, experimental, educational, and daily life use.

What We Like
Accurate weight measurements
Good value for the price
Includes all necessary weights
Durable and well-constructed
Effective for small measurements
What We Don't Like
Plastic tweezers lack grip
#TOP 10

I-MART Calibration Scale Weight Kit Set

IM826A
I-MART Calibration Scale Weight Kit Set Cover
I-MART Weight 1g 2g 5g 10g 20g Grams Steel Chrome Calibration Scale Weight Kit Set for Digital Scale Balance

The I-MART Calibration Scale Weight Kit Set includes five steel chrome weights with 1g, 2g, 5g, 10g, and 20g measurement options. This kit is an excellent choice for calibrating digital kitchen scales, jewelry scales, diamond scales, and precision balance tests. The weights are easy to handle and come in a convenient package.

What We Like
Accurate calibration weights
Compact and easy to store
Good value for the price
Range of weight options
What We Don't Like
Small weights may not register
Possible scale calibration issues
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 40,806 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 $14.17.

The calibration weights are available for purchase. We have researched hundreds of brands and picked the top brands of calibration weights, including Fuzion, Omama, HFS, Bekith, HESTYA. The seller of top 1 product has received honest feedback from 777 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.