Calibration Weights:
Single Calibration Weights & Weight Sets

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We carry a wide variety of calibration weights and calibration weight sets in several classes. Use these calibration weights to calibrate an inaccurate scale, or just to make sure your scale is “right on the money”.

If you're here for just a single weight, narrow your results by choosing the single calibration weight subcategory below. If you need more than one weight, you might save some money by choosing a set of calibration weights. They have their own subcategory, too.

Subcategories

Products 1-48 of 58
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(10)
M2 Calibration Weight - 1 gram
$3.90
$3.90
Sale Price: $3.90
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OIML Class M2 Calibration Weight.
(item received may differ from image)

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(1)
M2 Calibration Weight - 10 gram
$3.90
$3.90
Sale Price: $3.90
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OIML Class M2 Calibration Weight.
(item received may differ from image)

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(2)
M2 Calibration Weight - 20 gram
$3.90
$3.90
Sale Price: $3.90
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OIML Class M2 Calibration Weight.
(item received may differ from image)

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(2)
M2 Calibration Weight - 5 gram
$3.90
$3.90
Sale Price: $3.90
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OIML Class M2 Calibration Weight.
(item received may differ from image)

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(6)
M2 Calibration Weight - 50 gram
$3.90
$3.90
Sale Price: $3.90
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OIML Class M2 Calibration Weight.
(item received may differ from image)

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(29)
M2 Calibration Weight - 100 gram
$4.90
$4.90
Sale Price: $4.90
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Digital scales come factory calibrated, but there's a chance they can fall out of calibration during shipping or after use. Use this OIML Class M2 100g calibration weight to test and calibrate your digital scale, so you know it's nice and accurate.

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M2 Calibration Weight - 150 gram
$5.40
$5.40
Sale Price: $5.40
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OIML Class M2 Calibration Weight.
(item received may differ from image)

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(18)
M2 Calibration Weight - 200 gram
$5.90
$5.90
Sale Price: $5.90
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OIML Class M2 Calibration Weight.
(item received may differ from image)

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(7)
M2 Calibration Weight - 300 gram
$7.90
$7.90
Sale Price: $7.90
Free Shipping 48 Contiguous States Only

OIML Class M2 Calibration Weight.
(item received may differ from image)

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M2 Calibration Weight - 250 gram
$8.90
$8.90
Sale Price: $8.90
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OIML Class M2 Calibration Weight.
(item received may differ from image)

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(10)
M2 Calibration Weight - 500 gram
$10.90
$10.90
Sale Price: $10.90
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OIML Class M2 Calibration Weight.
(item received may differ from image)

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(9)
M2 Calibration Weight - 1000 gram
$18.60
$18.60
Sale Price: $18.60
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OIML Class M2 Calibration Weight.
(item received may differ from image)

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(9)
17 Piece - Class M2 - Calibration Weight Set
$20.90
$20.90
Sale Price: $20.90
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Weights included: 100g, 50g, 20g( x2 ), 10g, 5g, 2g( x2 ), 1g, 500mg, 200mg( x2 ), 100mg, 50mg, 20mg( x2 ), 10mg

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(5)
M2 Calibration Weight - 2000 gram
$33.90
$33.90
Sale Price: $33.90
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OIML Class M2 Calibration Weight.
(item received may differ from image)

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(1)
Adam ASTM Class 3 Calibration Weight - 1 gram astm class 3,calibration weight,1 gram,test weight,adam equipment
$58.50
$58.50
Sale Price: $58.50
Free Shipping 48 Contiguous States Only

Adam ASTM Class 3 1 gram calibration weight. This weight has a tolerance of 0.1 mg and can be used as a test weight for scales and balances with precision as high as 0.001 gram.

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Adam ASTM Class 3 Calibration Weight - 2 gram astm class 3,calibration weight,2 gram,test weight,adam equipment
$63.00
$63.00
Sale Price: $63.00
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Adam ASTM Class 3 2 gram calibration weight. This weight has a tolerance of 0.13 mg and can be used as a test weight for scales and balances with precision as high as 0.001 gram.

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Adam ASTM Class 4 Calibration Weight - 10 gram astm class 4,calibration weight,10 gram,test weight,adam equipment
$63.00
$63.00
Sale Price: $63.00
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Adam ASTM Class 4 10 gram calibration weight. This weight has a tolerance of 0.5 mg and can be used as a test weight for scales and balances with precision as high as 0.001 gram.

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Ohaus 500 Gram ASTM 6 Slotted Weight 80850148,slotted
$63.38
$63.38
Sale Price: $63.38
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Ohaus 500 Gram ASTM 6 Slotted Weight

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(2)
M2 Calibration Weight - 5000 gram
$66.20
$66.20
Sale Price: $66.20
Free Shipping 48 Contiguous States Only

OIML Class M2 Calibration Weight.
(item received may differ from image)

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Adam ASTM Class 2 Calibration Weight - 1 gram astm class 2,calibration weight,1 gram,test weight,adam equipment
$67.50
$67.50
Sale Price: $67.50
Free Shipping 48 Contiguous States Only

Adam ASTM Class 2 1 gram calibration weight. This weight has a tolerance of 0.054 mg and can be used as a test weight for scales and balances with precision as high as 0.0001 gram.

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Adam ASTM Class 3 Calibration Weight - 5 gram astm class 3,calibration weight,5 gram,test weight,adam equipment
$67.50
$67.50
Sale Price: $67.50
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Adam ASTM Class 3 5 gram calibration weight. This weight has a tolerance of 0.18 mg and can be used as a test weight for scales and balances with precision as high as 0.001 gram.

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Adam ASTM Class 4 Calibration Weight - 50 gram astm class 4,calibration weight,50 gram,test weight,adam equipment
$67.50
$67.50
Sale Price: $67.50
Free Shipping 48 Contiguous States Only

Adam ASTM Class 4 50 gram calibration weight. This weight has a tolerance of 1.2 mg and can be used as a test weight for scales and balances with precision as high as 0.01 gram.

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Adam ASTM Class 2 Calibration Weight - 2 gram astm class 2,calibration weight,2 gram,test weight,adam equipment
$72.00
$72.00
Sale Price: $72.00
Free Shipping 48 Contiguous States Only

Adam ASTM Class 2 2 gram calibration weight. This weight has a tolerance of 0.054 mg and can be used as a test weight for scales and balances with precision as high as 0.0001 gram.

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(1)
Adam ASTM Class 3 Calibration Weight - 10 gram astm class 3,calibration weight,10 gram,test weight,adam equipment
$72.00
$72.00
Sale Price: $72.00
Free Shipping 48 Contiguous States Only

Adam ASTM Class 3 10 gram calibration weight. This weight has a tolerance of 0.25 mg and can be used as a test weight for scales and balances with precision as high as 0.001 gram.

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Adam ASTM Class 4 Calibration Weight - 100 gram astm class 4,calibration weight,100 gram,test weight,adam equipment
$72.00
$72.00
Sale Price: $72.00
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Adam ASTM Class 4 100 gram calibration weight. This weight has a tolerance of 2 mg and can be used as a test weight for scales and balances with precision as high as 0.01 gram.

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Adam ASTM Class 1 Calibration Weight - 1 gram astm class 1,calibration weight,1 gram,test weight,adam equipment
$76.50
$76.50
Sale Price: $76.50
Free Shipping 48 Contiguous States Only

Adam ASTM Class 1 1 gram calibration weight. This weight has a tolerance of 0.034 mg and can be used as a test weight for scales and balances with precision as high as 0.0001 gram.

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Adam ASTM Class 2 Calibration Weight - 5 gram astm class 2,calibration weight,5 gram,test weight,adam equipment
$76.50
$76.50
Sale Price: $76.50
Free Shipping 48 Contiguous States Only

Adam ASTM Class 2 5 gram calibration weight. This weight has a tolerance of 0.054 mg and can be used as a test weight for scales and balances with precision as high as 0.0001 gram.

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Adam ASTM Class 4 Calibration Weight - 200 gram astm class 4,calibration weight,200 gram,test weight,adam equipment
$76.50
$76.50
Sale Price: $76.50
Free Shipping 48 Contiguous States Only

Adam ASTM Class 4 200 gram calibration weight. This weight has a tolerance of 4 mg and can be used as a test weight for scales and balances with precision as high as 0.01 gram.

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ASTM Class 3 Calibration Weight - 50 gram
$76.50
$76.50
Sale Price: $76.50
Free Shipping 48 Contiguous States Only

Digital scales come factory calibrated, but there's a chance they can fall out of calibration during shipping or after use. Use this ASTM Class 3 50g calibration weight to test and calibrate your digital scale, so you know it's nice and accurate.

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Adam ASTM Class 1 Calibration Weight - 2 gram astm class 1,calibration weight,2 gram,test weight,adam equipment
$81.00
$81.00
Sale Price: $81.00
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Adam ASTM Class 1 2 gram calibration weight. This weight has a tolerance of 0.034 mg and can be used as a test weight for scales and balances with precision as high as 0.0001 gram.

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Adam ASTM Class 2 Calibration Weight - 10 gram astm class 2,calibration weight,10 gram,test weight,adam equipment
$81.00
$81.00
Sale Price: $81.00
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Adam ASTM Class 2 10 gram calibration weight. This weight has a tolerance of 0.074 mg and can be used as a test weight for scales and balances with precision as high as 0.0001 gram.

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(2)
Adam ASTM Class 3 Calibration Weight - 100 gram astm class 3,calibration weight,100 gram,test weight,adam equipment
$81.00
$81.00
Sale Price: $81.00
Free Shipping 48 Contiguous States Only

Adam ASTM Class 3 100 gram calibration weight. This weight has a tolerance of 1 mg and can be used as a test weight for scales and balances with precision as high as 0.01 gram.

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Adam ASTM Class 1 Calibration Weight - 5 gram astm class 1,calibration weight,5 gram,test weight,adam equipment
$85.50
$85.50
Sale Price: $85.50
Free Shipping 48 Contiguous States Only

Adam ASTM Class 1 5 gram calibration weight. This weight has a tolerance of 0.034 mg and can be used as a test weight for scales and balances with precision as high as 0.0001 gram.

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Adam ASTM Class 2 Calibration Weight - 50 gram astm class 2,calibration weight,50 gram,test weight,adam equipment
$85.50
$85.50
Sale Price: $85.50
Free Shipping 48 Contiguous States Only

Adam ASTM Class 2 50 gram calibration weight. This weight has a tolerance of 0.25 mg and can be used as a test weight for scales and balances with precision as high as 0.001 gram.

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(1)
ASTM Class 3 Calibration Weight - 200 gram
$85.50
$85.50
Sale Price: $85.50
Free Shipping 48 Contiguous States Only

Digital scales come factory calibrated, but there's a chance they can fall out of calibration during shipping or after use. Use this ASTM Class 3 200g calibration weight to test and calibrate your digital scale, so you know it's nice and accurate.

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(3)
ASTM Class 2 Calibration Weight - 100 gram
$90.00
$90.00
Sale Price: $90.00
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Digital scales come factory calibrated, but there's a chance they can fall out of calibration during shipping or after use. Use this ASTM Class 2 100g calibration weight to test and calibrate your digital scale, so you know it's nice and accurate.

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Adam ASTM Class 2 Calibration Weight - 200 gram astm class 2,calibration weight,200 gram,test weight,adam equipment
$94.50
$94.50
Sale Price: $94.50
Free Shipping 48 Contiguous States Only

Adam ASTM Class 2 200 gram calibration weight. This weight has a tolerance of 1 mg and can be used as a test weight for scales and balances with precision as high as 0.01 gram.

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Adam ASTM Class 1 Calibration Weight - 50 gram astm class 1,calibration weight,50 gram,test weight,adam equipment
$99.00
$99.00
Sale Price: $99.00
Free Shipping 48 Contiguous States Only

Adam ASTM Class 1 50 gram calibration weight. This weight has a tolerance of 0.12 mg and can be used as a test weight for scales and balances with precision as high as 0.001 gram.

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Adam ASTM Class 4 Calibration Weight - 500 gram astm class 4,calibration weight,500 gram,test weight,adam equipment
$99.00
$99.00
Sale Price: $99.00
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Adam ASTM Class 4 500 gram calibration weight. This weight has a tolerance of 10 mg and can be used as a test weight for scales and balances with precision as high as 0.1 gram.

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Adam ASTM Class 1 Calibration Weight - 100 gram astm class 1,calibration weight,100 gram,test weight,adam equipment
$103.50
$103.50
Sale Price: $103.50
Free Shipping 48 Contiguous States Only

Adam ASTM Class 1 100 gram calibration weight. This weight has a tolerance of 0.25 mg and can be used as a test weight for scales and balances with precision as high as 0.001 gram.

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Adam ASTM Class 3 Calibration Weight - 500 gram astm class 3,calibration weight,500 gram,test weight,adam equipment
$108.00
$108.00
Sale Price: $108.00
Free Shipping 48 Contiguous States Only

Adam ASTM Class 3 500 gram calibration weight. This weight has a tolerance of 5 mg and can be used as a test weight for scales and balances with precision as high as 0.01 gram.

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M2 Calibration Weight - 10,000 Gram
$108.20
$108.20
Sale Price: $108.20
Free Shipping 48 Contiguous States Only

OIML Class M2 10 kilogram Calibration Weight.
(item received may differ from image)

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Adam ASTM Class 2 Calibration Weight - 500 gram astm class 2,calibration weight,500 gram,test weight,adam equipment
$117.00
$117.00
Sale Price: $117.00
Free Shipping 48 Contiguous States Only

Adam ASTM Class 2 500 gram calibration weight. This weight has a tolerance of 2.5 mg and can be used as a test weight for scales and balances with precision as high as 0.01 gram.

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ASTM Class 1 Calibration Weight - 200 gram
$121.50
$121.50
Sale Price: $121.50
Free Shipping 48 Contiguous States Only

Digital scales come factory calibrated, but there's a chance they can fall out of calibration during shipping or after use. Use this ASTM Class 1 200g calibration weight to test and calibrate your digital scale, so you know it's nice and accurate.

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ASTM Class 1 Calibration Weight - 500 gram
$135.00
$135.00
Sale Price: $135.00
Free Shipping 48 Contiguous States Only

Digital scales come factory calibrated, but there's a chance they can fall out of calibration during shipping or after use. Use this ASTM Class 1 500g calibration weight to test and calibrate your digital scale, so you know it's nice and accurate.

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Adam ASTM Class 4 Calibration Weight - 1000 gram astm class 4,calibration weight,1000 gram,1 kilogram,test weight,adam equipment
$175.50
$175.50
Sale Price: $175.50
Free Shipping 48 Contiguous States Only

Adam ASTM Class 4 1 kilogram calibration weight. This weight has a tolerance of 20 mg and can be used as a test weight for scales and balances with precision as high as 0.1 gram.

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ASTM Class 6 Calibration Weight Set - (50g - 1g)
$176.48
$176.48
Sale Price: $176.48
Free Shipping 48 Contiguous States Only

ASTM Class 6 - 8 Piece Calibration Weight Set. (item received may differ from image)

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Adam ASTM Class 3 Calibration Weight - 1000 gram astm class 3,calibration weight,1000 gram,1 kilogram,test weight,adam equipment
$193.50
$193.50
Sale Price: $193.50
Free Shipping 48 Contiguous States Only

Adam ASTM Class 3 1 kilogram calibration weight. This weight has a tolerance of 10 mg and can be used as a test weight for scales and balances with precision as high as 0.1 gram.

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We know you have a choice when you buy scales online. Just know that when you buy digital scales from Old Will, it's always a "Worry Free Deal".

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