Avoirdupois ounces to grains converter

Convert avoirdupois ounces (oz) to grains (gr).

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Edit either value. Decimals and scientific notation supported.

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CONVERSION

1 oz ≈ 437.5 gr

Display precision

Precision changes displayed rounding, not calculation accuracy.

FORMULAgr = oz × 437.5

FORMULA & EXAMPLES

How to convert Avoirdupois ounces to grains

gr = oz × 437.5

Multiply the oz reading by 437.5.

Worked examples

1 oz ≈ 437.5 gr

1 × 437.5 ≈ 437.5

16 oz ≈ 7000 gr

16 × 437.5 ≈ 7000

Avoirdupois ounces to grains table

Fixed reference · Ounce to Grain

Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.

Ounce (oz)	Grain (gr)
0	0
0.1	43.75
0.5	218.75
1	437.5
2	875
5	2187.5
10	4375
25	10937.5
50	21875
100	43750
1000	437500

Table results use 10 significant figures; decimal formula coefficients use up to 15. Calculations use the unit definitions before rounding. Extra digits do not improve measurement accuracy.

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