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Convert ounce to grain

Here you can quickly calculate how many grain fit in one ounce.
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  • 1 oz = 437.5 gr
  • 1 gr = 0.002286 oz

Example: ounce to grain

  • 1 ounce = 437.5 grain

Ounce to grain conversion table

ounce grain
1 437.5
2 875
5 2187.5
10 4375
20 8750
50 21875
100 43750

Ounce to grain formula

To convert ounce to grain, multiply by 437.5.

1 oz = 437.5 gr
Example: 1 ounce = 437.5 grain

Common mass conversion mistakes

  • The everyday avoirdupois ounce is about 28.35 g, but precious metals are priced in troy ounces of about 31.10 g. An 'ounce of gold' is nearly 10% heavier than an ounce of flour. Use troy ounces for gold and silver, the regular ounce for everything else.

Quick ounce and grain conversion quiz

Score: 0

131 ounce equals 28 700 grain.

Correct answer: 131 ounce = 57 300 grain.

17.9 grain equals 0.0614 ounce.

Correct answer: 17.9 grain = 0.0409 ounce.

21.4 ounce equals 9 360 grain.

Correct answer: 21.4 ounce = 9 360 grain.

8.6 ounce equals 5 640 grain.

Correct answer: 8.6 ounce = 3 760 grain.

117 ounce equals 30 700 grain.

Correct answer: 117 ounce = 51 200 grain.

More mass conversions