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The magnitudes of all the units in the system are based on the size of the vedro.
before 1 January 1819 |
||||||
ancre or anker |
13¹⁄₃ |
|||||
3 |
40 |
|||||
tschetwerka |
4 |
12 |
160 |
|||
osmuschka or kroushka |
2 |
8 |
24 |
320 |
||
11 |
22 |
88 |
264 |
3520 |
||
chkalik |
2 |
22 |
44 |
176 |
528 |
7040 |
70 |
140 |
1.54 |
3.07 |
12.30 |
36.90 |
491.94 |
In a ukase of 1818, the tsar redefined the vedro as the volume of 30 avoirdupois pounds of distilled water at a temperature of 13¹⁄₃ degrees Rèaumur. The vedro was divided into 100 charka; comparing the chart above with that below will show the beginning of decimalization.
A ukase of 11 October 1835 defined the vedro as the volume occupied by 30 “livre russe” of distilled water at 13¹⁄₃ degrees Rèaumur. The same ukase defined the “livre russe” as the mass of 25.019 cubic (English) inches of distilled water at 13¹⁄₃ degrees Rèaumur, making the vedro, as the ukase notes, 750.57 cubic inches, which is 12.29964 liters. The ukase also defined the demi-vedro, krouchka and the polukrouchka.
after 1 January 1819 |
|||||||
ancre or anker |
13¹⁄₃ |
||||||
3 |
40 |
||||||
shtof |
8 |
24 |
320 |
||||
| 1¼ |
10 |
30 |
400 |
||||
10 |
10 |
100 |
300 |
4000 |
|||
2 |
20 |
25 |
200 |
600 |
8000 |
||
ukase of 1818 |
|
|
|
|
12.299 |
|
|
|
ukase of 11 October 1835 |
0.062 |
— |
1.23 |
1.54 |
12.300 |
36.90 |
492.0 |
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Copyright © 2000-2005 Sizes, Inc. All rights reserved.
Last revised: 1 August 2005.