Individual Calibration Weights

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Our individual calibration weights are available in many different classes in masses as light as 1 milligram and as heavy as 30 kilograms. Our calibration weights are great for calibrating your scale and they can be used to test the accuracy of your scales from time to time.

See all of our calibration weights
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(7)
M2 Calibration Weight - 1 gram
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MSRP: $7.99
Old Will's Price: $4.40
MSRP: $7.99
Old Will's Price: $4.40
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MSRP: $7.99
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OIML Class M2 Calibration Weight.
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M2 Calibration Weight - 10 gram
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MSRP: $10.99
Old Will's Price: $5.90
MSRP: $10.99
Old Will's Price: $5.90
Sale Price: $5.90
MSRP: $10.99
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OIML Class M2 Calibration Weight.
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(1)
M2 Calibration Weight - 20 gram
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MSRP: $10.99
Old Will's Price: $5.90
MSRP: $10.99
Old Will's Price: $5.90
Sale Price: $5.90
MSRP: $10.99
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OIML Class M2 Calibration Weight.
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(2)
M2 Calibration Weight - 5 gram
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MSRP: $10.99
Old Will's Price: $5.90
MSRP: $10.99
Old Will's Price: $5.90
Sale Price: $5.90
MSRP: $10.99
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OIML Class M2 Calibration Weight.
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M2 Calibration Weight - 150 gram
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MSRP: $10.99
Old Will's Price: $6.20
MSRP: $10.99
Old Will's Price: $6.20
Sale Price: $6.20
MSRP: $10.99
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OIML Class M2 Calibration Weight.
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(5)
M2 Calibration Weight - 50 gram
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MSRP: $10.99
Old Will's Price: $6.20
MSRP: $10.99
Old Will's Price: $6.20
Sale Price: $6.20
MSRP: $10.99
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OIML Class M2 Calibration Weight.
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(27)
M2 Calibration Weight - 100 gram
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MSRP: $12.99
Old Will's Price: $6.90
MSRP: $12.99
Old Will's Price: $6.90
Sale Price: $6.90
MSRP: $12.99
Old Will's Price:
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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 ya know it's nice and accurate.

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(13)
M2 Calibration Weight - 200 gram
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MSRP: $22.50
Old Will's Price: $12.50
MSRP: $22.50
Old Will's Price: $12.50
Sale Price: $12.50
MSRP: $22.50
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OIML Class M2 Calibration Weight.
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(5)
M2 Calibration Weight - 300 gram
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MSRP: $13.99
Old Will's Price: $12.70
MSRP: $13.99
Old Will's Price: $12.70
Sale Price: $12.70
MSRP: $13.99
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OIML Class M2 Calibration Weight.
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(9)
M2 Calibration Weight - 500 gram
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MSRP: $22.99
Old Will's Price: $12.80
MSRP: $22.99
Old Will's Price: $12.80
Sale Price: $12.80
MSRP: $22.99
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OIML Class M2 Calibration Weight.
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(6)
M2 Calibration Weight - 1000 gram
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MSRP: $44.90
Old Will's Price: $24.90
MSRP: $44.90
Old Will's Price: $24.90
Sale Price: $24.90
MSRP: $44.90
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OIML Class M2 Calibration Weight.
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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $50.00
Old Will's Price: $45.00
MSRP: $50.00
Old Will's Price: $45.00
Sale Price: $45.00
MSRP: $50.00
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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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ASTM Class 1 Calibration Weight - 1000 gram
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MSRP: $55.00
Old Will's Price: $49.50
MSRP: $55.00
Old Will's Price: $49.50
Sale Price: $49.50
MSRP: $55.00
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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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ASTM Class 1 Calibration Weight - 1000 gram
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MSRP: $55.00
Old Will's Price: $49.50
MSRP: $55.00
Old Will's Price: $49.50
Sale Price: $49.50
MSRP: $55.00
Old Will's Price:
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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
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MSRP: $51.00
Old Will's Price: $49.73
MSRP: $51.00
Old Will's Price: $49.73
Sale Price: $49.73
MSRP: $51.00
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Ohaus 500 Gram ASTM 6 Slotted Weight

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(4)
M2 Calibration Weight - 2000 gram
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MSRP: $89.90
Old Will's Price: $49.90
MSRP: $89.90
Old Will's Price: $49.90
Sale Price: $49.90
MSRP: $89.90
Old Will's Price:
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OIML Class M2 Calibration Weight.
(item received may differ from image)

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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $60.00
Old Will's Price: $54.00
MSRP: $60.00
Old Will's Price: $54.00
Sale Price: $54.00
MSRP: $60.00
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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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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $60.00
Old Will's Price: $54.00
MSRP: $60.00
Old Will's Price: $54.00
Sale Price: $54.00
MSRP: $60.00
Old Will's Price:
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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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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $60.00
Old Will's Price: $54.00
MSRP: $60.00
Old Will's Price: $54.00
Sale Price: $54.00
MSRP: $60.00
Old Will's Price:
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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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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $65.00
Old Will's Price: $58.50
MSRP: $65.00
Old Will's Price: $58.50
Sale Price: $58.50
MSRP: $65.00
Old Will's Price:
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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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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $65.00
Old Will's Price: $58.50
MSRP: $65.00
Old Will's Price: $58.50
Sale Price: $58.50
MSRP: $65.00
Old Will's Price:
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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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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $65.00
Old Will's Price: $58.50
MSRP: $65.00
Old Will's Price: $58.50
Sale Price: $58.50
MSRP: $65.00
Old Will's Price:
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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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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $70.00
Old Will's Price: $63.00
MSRP: $70.00
Old Will's Price: $63.00
Sale Price: $63.00
MSRP: $70.00
Old Will's Price:
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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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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $70.00
Old Will's Price: $63.00
MSRP: $70.00
Old Will's Price: $63.00
Sale Price: $63.00
MSRP: $70.00
Old Will's Price:
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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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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $70.00
Old Will's Price: $63.00
MSRP: $70.00
Old Will's Price: $63.00
Sale Price: $63.00
MSRP: $70.00
Old Will's Price:
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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
S A L E
MSRP: $70.00
Old Will's Price: $63.00
MSRP: $70.00
Old Will's Price: $63.00
Sale Price: $63.00
MSRP: $70.00
Old Will's Price:
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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 3 50g calibration weight to test and calibrate your digital scale, so ya know it's nice and accurate.

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(1)
M2 Calibration Weight - 5000 gram
S A L E
MSRP: $119.90
Old Will's Price: $66.50
MSRP: $119.90
Old Will's Price: $66.50
Sale Price: $66.50
MSRP: $119.90
Old Will's Price:
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OIML Class M2 Calibration Weight.
(item received may differ from image)

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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $75.00
Old Will's Price: $67.50
MSRP: $75.00
Old Will's Price: $67.50
Sale Price: $67.50
MSRP: $75.00
Old Will's Price:
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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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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $75.00
Old Will's Price: $67.50
MSRP: $75.00
Old Will's Price: $67.50
Sale Price: $67.50
MSRP: $75.00
Old Will's Price:
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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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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $75.00
Old Will's Price: $67.50
MSRP: $75.00
Old Will's Price: $67.50
Sale Price: $67.50
MSRP: $75.00
Old Will's Price:
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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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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $80.00
Old Will's Price: $72.00
MSRP: $80.00
Old Will's Price: $72.00
Sale Price: $72.00
MSRP: $80.00
Old Will's Price:
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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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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $80.00
Old Will's Price: $72.00
MSRP: $80.00
Old Will's Price: $72.00
Sale Price: $72.00
MSRP: $80.00
Old Will's Price:
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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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ASTM Class 3 Calibration Weight - 200 gram
S A L E
MSRP: $80.00
Old Will's Price: $72.00
MSRP: $80.00
Old Will's Price: $72.00
Sale Price: $72.00
MSRP: $80.00
Old Will's Price:
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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 3 200g calibration weight to test and calibrate your digital scale, so ya know it's nice and accurate.

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(2)
ASTM Class 2 Calibration Weight - 100 gram
S A L E
MSRP: $85.00
Old Will's Price: $76.50
MSRP: $85.00
Old Will's Price: $76.50
Sale Price: $76.50
MSRP: $85.00
Old Will's Price:
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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 ya know it's nice and accurate.

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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $90.00
Old Will's Price: $81.00
MSRP: $90.00
Old Will's Price: $81.00
Sale Price: $81.00
MSRP: $90.00
Old Will's Price:
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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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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $90.00
Old Will's Price: $81.00
MSRP: $90.00
Old Will's Price: $81.00
Sale Price: $81.00
MSRP: $90.00
Old Will's Price:
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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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F1 Calibration Weight - 1 milligram
S A L E
MSRP: $42.00
Old Will's Price: $83.85
MSRP: $42.00
Old Will's Price: $83.85
Sale Price: $83.85
MSRP: $42.00
Old Will's Price:
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
(item received may differ from image)

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F1 Calibration Weight - 10 milligram
S A L E
MSRP: $42.00
Old Will's Price: $83.85
MSRP: $42.00
Old Will's Price: $83.85
Sale Price: $83.85
MSRP: $42.00
Old Will's Price:
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
(item received may differ from image)

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F1 Calibration Weight - 100 milligram
S A L E
MSRP: $42.00
Old Will's Price: $83.85
MSRP: $42.00
Old Will's Price: $83.85
Sale Price: $83.85
MSRP: $42.00
Old Will's Price:
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
(item received may differ from image)

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F1 Calibration Weight - 20 milligram
S A L E
MSRP: $42.00
Old Will's Price: $83.85
MSRP: $42.00
Old Will's Price: $83.85
Sale Price: $83.85
MSRP: $42.00
Old Will's Price:
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
(item received may differ from image)

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F1 Calibration Weight - 200 milligram
S A L E
MSRP: $42.00
Old Will's Price: $83.85
MSRP: $42.00
Old Will's Price: $83.85
Sale Price: $83.85
MSRP: $42.00
Old Will's Price:
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
(item received may differ from image)

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(1)
F1 Calibration Weight - 5 milligram
S A L E
MSRP: $42.00
Old Will's Price: $83.85
MSRP: $42.00
Old Will's Price: $83.85
Sale Price: $83.85
MSRP: $42.00
Old Will's Price:
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
(item received may differ from image)

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F1 Calibration Weight - 50 milligram
S A L E
MSRP: $42.00
Old Will's Price: $83.85
MSRP: $42.00
Old Will's Price: $83.85
Sale Price: $83.85
MSRP: $42.00
Old Will's Price:
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
(item received may differ from image)

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F1 Calibration Weight - 500 milligram
S A L E
MSRP: $42.00
Old Will's Price: $83.85
MSRP: $42.00
Old Will's Price: $83.85
Sale Price: $83.85
MSRP: $42.00
Old Will's Price:
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
(item received may differ from image)

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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $95.00
Old Will's Price: $85.50
MSRP: $95.00
Old Will's Price: $85.50
Sale Price: $85.50
MSRP: $95.00
Old Will's Price:
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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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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $95.00
Old Will's Price: $85.50
MSRP: $95.00
Old Will's Price: $85.50
Sale Price: $85.50
MSRP: $95.00
Old Will's Price:
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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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F1 Calibration Weight - 2 milligram
S A L E
MSRP: $42.00
Old Will's Price: $94.00
MSRP: $42.00
Old Will's Price: $94.00
Sale Price: $94.00
MSRP: $42.00
Old Will's Price:
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
(item received may differ from image)

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ASTM Class 1 Calibration Weight - 1000 gram
S A L E
MSRP: $105.00
Old Will's Price: $94.50
MSRP: $105.00
Old Will's Price: $94.50
Sale Price: $94.50
MSRP: $105.00
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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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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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