The “Kanna” is a traditional unit of measurement utilized in Japan, primarily for quantifying land area, and it dates back to ancient times. Originally corresponding to the length of a carpenter’s plane, the Kanna unit is equivalent to approximately 1.82 meters today. It provides a fascinating glimpse into how historical measures were often based on practical tools and everyday objects. The unit has since been replaced by the metric system for modern applications, yet it remains an intriguing part of Japan’s cultural heritage. Interestingly, the persistence of such units underscores the balance between tradition and technological advancement within Japanese society, highlighting how measurements can evolve while still honoring their historical context.
The “Glas” is an intriguing, though lesser-known, unit of volume, traditionally used in the Netherlands to measure wine and spirits. Dating back to the 1800s, one Glas was approximately equivalent to 150 milliliters, aligning closely with a standard modern wine glass. Its historical use highlights how cultures have tailored measurement systems to fit specific social practices, such as enjoying wine in communal settings, thus embodying the close relationship between cultural traditions and measurement systems.
While it has mostly fallen out of use today, the Glas provides a fascinating glimpse into historical consumption habits and the evolution of standard units. It reminds us that units of measurement are not merely mathematical constructs but are also deeply influenced by the lifestyles and practices of their time.
Kannor | Glas |
---|---|
0
kanna
|
0
glas
|
0.5
kanna
|
6.5425
glas
|
1
kanna
|
13.085
glas
|
1.5
kanna
|
19.6275
glas
|
2
kanna
|
26.17
glas
|
2.5
kanna
|
32.7125
glas
|
3
kanna
|
39.255
glas
|
3.5
kanna
|
45.7975
glas
|
4
kanna
|
52.34
glas
|
4.5
kanna
|
58.8825
glas
|
5
kanna
|
65.425
glas
|
5.5
kanna
|
71.9675
glas
|
6
kanna
|
78.51
glas
|
6.5
kanna
|
85.0525
glas
|
7
kanna
|
91.595
glas
|
7.5
kanna
|
98.1375
glas
|
8
kanna
|
104.68
glas
|
8.5
kanna
|
111.2225
glas
|
9
kanna
|
117.765
glas
|
9.5
kanna
|
124.3075
glas
|
10
kanna
|
130.85
glas
|
10.5
kanna
|
137.3925
glas
|
11
kanna
|
143.935
glas
|
11.5
kanna
|
150.4775
glas
|
12
kanna
|
157.02
glas
|
12.5
kanna
|
163.5625
glas
|
13
kanna
|
170.105
glas
|
13.5
kanna
|
176.6475
glas
|
14
kanna
|
183.19
glas
|
14.5
kanna
|
189.7325
glas
|
15
kanna
|
196.275
glas
|
15.5
kanna
|
202.8175
glas
|
16
kanna
|
209.36
glas
|
16.5
kanna
|
215.9025
glas
|
17
kanna
|
222.445
glas
|
17.5
kanna
|
228.9875
glas
|
18
kanna
|
235.53
glas
|
18.5
kanna
|
242.0725
glas
|
19
kanna
|
248.615
glas
|
19.5
kanna
|
255.1575
glas
|
20
kanna
|
261.7
glas
|
20.5
kanna
|
268.2425
glas
|
21
kanna
|
274.785
glas
|
21.5
kanna
|
281.3275
glas
|
22
kanna
|
287.87
glas
|
22.5
kanna
|
294.4125
glas
|
23
kanna
|
300.955
glas
|
23.5
kanna
|
307.4975
glas
|
24
kanna
|
314.04
glas
|
24.5
kanna
|
320.5825
glas
|
25
kanna
|
327.125
glas
|
25.5
kanna
|
333.6675
glas
|
26
kanna
|
340.21
glas
|
26.5
kanna
|
346.7525
glas
|
27
kanna
|
353.295
glas
|
27.5
kanna
|
359.8375
glas
|
28
kanna
|
366.38
glas
|
28.5
kanna
|
372.9225
glas
|
29
kanna
|
379.465
glas
|
29.5
kanna
|
386.0075
glas
|
30
kanna
|
392.55
glas
|
30.5
kanna
|
399.0925
glas
|
31
kanna
|
405.635
glas
|
31.5
kanna
|
412.1775
glas
|
32
kanna
|
418.72
glas
|
32.5
kanna
|
425.2625
glas
|
33
kanna
|
431.805
glas
|
33.5
kanna
|
438.3475
glas
|
34
kanna
|
444.89
glas
|
34.5
kanna
|
451.4325
glas
|
35
kanna
|
457.975
glas
|
35.5
kanna
|
464.5175
glas
|
36
kanna
|
471.06
glas
|
36.5
kanna
|
477.6025
glas
|
37
kanna
|
484.145
glas
|
37.5
kanna
|
490.6875
glas
|
38
kanna
|
497.23
glas
|
38.5
kanna
|
503.7725
glas
|
39
kanna
|
510.315
glas
|
39.5
kanna
|
516.8575
glas
|
40
kanna
|
523.4
glas
|
40.5
kanna
|
529.9425
glas
|
41
kanna
|
536.485
glas
|
41.5
kanna
|
543.0275
glas
|
42
kanna
|
549.57
glas
|
42.5
kanna
|
556.1125
glas
|
43
kanna
|
562.655
glas
|
43.5
kanna
|
569.1975
glas
|
44
kanna
|
575.74
glas
|
44.5
kanna
|
582.2825
glas
|
45
kanna
|
588.825
glas
|
45.5
kanna
|
595.3675
glas
|
46
kanna
|
601.91
glas
|
46.5
kanna
|
608.4525
glas
|
47
kanna
|
614.995
glas
|
47.5
kanna
|
621.5375
glas
|
48
kanna
|
628.08
glas
|
48.5
kanna
|
634.6225
glas
|
49
kanna
|
641.165
glas
|
49.5
kanna
|
647.7075
glas
|
50
kanna
|
654.25
glas
|
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