Convert troy ounces (oz t) to avoirdupois drams (dr (av)).
Mass converter
Instant conversion
Edit either value. Decimals and scientific notation supported.
1
oz t
Decimal
Stone + pounds
Whole stone; pounds from 0 to less than 14. Non-negative values.
esc
Kilogramkg
Gramg
Milligrammg
Microgramµg
Poundlb
Ounceoz
Stonest
Metric tonnet
US short tonton (US)
Imperial long tonton (UK)
Imperial hundredweightcwt (UK)
US hundredweightcwt (US)
Imperial quarterqr (UK)
Avoirdupois dramdr (av)
Graingr
Pennyweightdwt
Troy ounceoz t
Metric quintalq
No units found. Try a name or symbol.
Stone + pounds
17.55428571
dr (av)
Decimal
Stone + pounds
Whole stone; pounds from 0 to less than 14. Non-negative values.
esc
Kilogramkg
Gramg
Milligrammg
Microgramµg
Poundlb
Ounceoz
Stonest
Metric tonnet
US short tonton (US)
Imperial long tonton (UK)
Imperial hundredweightcwt (UK)
US hundredweightcwt (US)
Imperial quarterqr (UK)
Avoirdupois dramdr (av)
Graingr
Pennyweightdwt
Troy ounceoz t
Metric quintalq
No units found. Try a name or symbol.
Stone + pounds
CONVERSION
1 oz t ≈ 17.55428571 dr (av)
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULAdr (av) = oz t × 17.5542857142857
FORMULA & EXAMPLES
How to convert Troy ounces to avoirdupois drams
dr (av) = oz t × 17.5542857142857
Multiply the oz t reading by 17.5542857142857.
Worked examples
1 oz t ≈ 17.55428571 dr (av)
1 × 17.5542857142857 ≈ 17.55428571
10 oz t ≈ 175.5428571 dr (av)
10 × 17.5542857142857 ≈ 175.5428571
Troy ounces to avoirdupois drams table
Fixed reference · Troy ounce to Avoirdupois dram
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
Troy ounce (oz t)
Avoirdupois dram (dr (av))
0
0
0.1
1.755428571
0.5
8.777142857
1
17.55428571
2
35.10857143
5
87.77142857
10
175.5428571
25
438.8571429
50
877.7142857
100
1755.428571
1000
17554.28571
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.