England
units of mass

Troy weight

See also troy weight. Figures in bold are exact. We provide an Excel spreadsheet for calculating in this weight system at www.sizes.com/units/troy_calc.xls

     

mast

   

troy pound

 

troy ounce

12

30

pennyweight

20

240

600

grain

24

480

5760

14,400

before changes in 1588 and 1758

64.76
mg

1554.2
mg

31.08
g

373.01
g

932.52
g

after 1758

64.798 91
mg

1555.173 84
mg

31.103 476 8
g

373.241 721 6
g

933.104 304
g

avoirdupois

1
gr

0.054 857 14
oz

1.097 143
oz

0.822 857 1
lb

2.057 142
lb

notes

abolished in UK
1985

abolished in UK
1976 & 1985

 
 

abolished in UK
1878

obsolete by
the 17th century

Avoirdupois weight

Figures in bold are exact. We provide an Excel spreadsheet for calculating in stones and smaller units in this weight system at sizes.com/units/av_calc.xls

ton

hundredweight

20

quarter

4

80

stone

2

8

160

pound

14

28

112

2240

ounce

16

224

448

1792

35,840

dram

16

256

3584

7168

28,672

573,440

grain

27.34

437.5

7000

98,000

196,000

784,000

15,680,000

64.798 91
mg

1.77
g

28.349 523 125
g

453.592 37
g

6.350
kg

12.70
kg

50.80
kg

1016.0
kg

abolished in UK
1985

abol. in UK
1985

 
  

 
 

abol. in UK
1985

abol. in UK
1985

abol. in UK
1985

abol. in UK
1985

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