The gram is a deceptively small yet crucial unit of mass in the metric system, tracing its roots back to the French Revolution. Originally defined in 1795 as the mass of one cubic centimeter of water at the melting ice’s temperature, it laid the foundation for the modern metric system we use today. Few people realize that everyday items like a paperclip or a dollar bill weigh roughly a gram, highlighting just how lightweight this unit truly is.
Moreover, in the scientific community, the gram is indispensable, especially in chemistry where molecular weights are expressed in grams per mole, serving as a bridge between the atomic and macroscopic worlds. Its precision is vital in fields ranging from pharmacology to engineering, where exact measurements can mean the difference between success and failure in critical applications.
The stone is a unit of weight that has a particularly rich history, mainly used in the UK and Ireland for human body weight measurement. Originating from the Biblical days, a stone was once standardized by the British Act of Parliament in 1835 to equal 14 pounds. This peculiar unit is still popular in daily life, especially in conversations about body weight or livestock; any Harry Potter fan will recognize Hagrid’s impressive weight mentioned in stones!
An interesting fact is that the symbol for stone “st” doesn’t change forms, much like “lb” for pounds, which can be confusing at first glance. Unlike metric units with their straightforward conversions, the cultural and historical essence of the stone makes it an intriguing part of British heritage, fostering a sense of continuity from medieval markets to modern times.
Grams | Stones |
---|---|
0
g
|
0
st
|
10
g
|
0.00157473
st
|
20
g
|
0.00314946
st
|
30
g
|
0.00472419
st
|
40
g
|
0.00629892
st
|
50
g
|
0.00787365
st
|
60
g
|
0.00944838
st
|
70
g
|
0.0110231
st
|
80
g
|
0.0125978
st
|
90
g
|
0.0141726
st
|
100
g
|
0.0157473
st
|
110
g
|
0.017322
st
|
120
g
|
0.0188968
st
|
130
g
|
0.0204715
st
|
140
g
|
0.0220462
st
|
150
g
|
0.023621
st
|
160
g
|
0.0251957
st
|
170
g
|
0.0267704
st
|
180
g
|
0.0283451
st
|
190
g
|
0.0299199
st
|
200
g
|
0.0314946
st
|
210
g
|
0.0330693
st
|
220
g
|
0.0346441
st
|
230
g
|
0.0362188
st
|
240
g
|
0.0377935
st
|
250
g
|
0.0393683
st
|
260
g
|
0.040943
st
|
270
g
|
0.0425177
st
|
280
g
|
0.0440925
st
|
290
g
|
0.0456672
st
|
300
g
|
0.0472419
st
|
310
g
|
0.0488166
st
|
320
g
|
0.0503914
st
|
330
g
|
0.0519661
st
|
340
g
|
0.0535408
st
|
350
g
|
0.0551156
st
|
360
g
|
0.0566903
st
|
370
g
|
0.058265
st
|
380
g
|
0.0598398
st
|
390
g
|
0.0614145
st
|
400
g
|
0.0629892
st
|
410
g
|
0.0645639
st
|
420
g
|
0.0661387
st
|
430
g
|
0.0677134
st
|
440
g
|
0.0692881
st
|
450
g
|
0.0708629
st
|
460
g
|
0.0724376
st
|
470
g
|
0.0740123
st
|
480
g
|
0.0755871
st
|
490
g
|
0.0771618
st
|
500
g
|
0.0787365
st
|
510
g
|
0.0803113
st
|
520
g
|
0.081886
st
|
530
g
|
0.0834607
st
|
540
g
|
0.0850354
st
|
550
g
|
0.0866102
st
|
560
g
|
0.0881849
st
|
570
g
|
0.0897596
st
|
580
g
|
0.0913344
st
|
590
g
|
0.0929091
st
|
600
g
|
0.0944838
st
|
610
g
|
0.0960586
st
|
620
g
|
0.0976333
st
|
630
g
|
0.099208
st
|
640
g
|
0.100783
st
|
650
g
|
0.102357
st
|
660
g
|
0.103932
st
|
670
g
|
0.105507
st
|
680
g
|
0.107082
st
|
690
g
|
0.108656
st
|
700
g
|
0.110231
st
|
710
g
|
0.111806
st
|
720
g
|
0.113381
st
|
730
g
|
0.114955
st
|
740
g
|
0.11653
st
|
750
g
|
0.118105
st
|
760
g
|
0.11968
st
|
770
g
|
0.121254
st
|
780
g
|
0.122829
st
|
790
g
|
0.124404
st
|
800
g
|
0.125978
st
|
810
g
|
0.127553
st
|
820
g
|
0.129128
st
|
830
g
|
0.130703
st
|
840
g
|
0.132277
st
|
850
g
|
0.133852
st
|
860
g
|
0.135427
st
|
870
g
|
0.137002
st
|
880
g
|
0.138576
st
|
890
g
|
0.140151
st
|
900
g
|
0.141726
st
|
910
g
|
0.1433
st
|
920
g
|
0.144875
st
|
930
g
|
0.14645
st
|
940
g
|
0.148025
st
|
950
g
|
0.149599
st
|
960
g
|
0.151174
st
|
970
g
|
0.152749
st
|
980
g
|
0.154324
st
|
990
g
|
0.155898
st
|
1000
g
|
0.157473
st
|
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