|
(1) 길 이
|
|
(2) 면 적
|
|
cm
|
m
|
in
|
ft
|
|
1
|
0.01
|
0.3937
|
0.03281
|
|
100
|
1
|
39.37
|
3.281
|
|
2.540
|
0.0254
|
1
|
0.08333
|
|
30.48
|
0.3048
|
12
|
1
|
|
|
|
cm²
|
m²
|
in²
|
ft²
|
|
1
|
0.0001
|
0.155
|
0.001076
|
|
1×10⁴
|
1
|
1550
|
10.76
|
|
6.452
|
0.000645
|
1
|
0.006944
|
|
929.0
|
0.09290
|
144
|
1
|
|
|
|
(3) 체 적
|
|
(4) 두 량(斗量)
|
|
cm³
|
m³
|
in³
|
ft³
|
|
1
|
1E-6
|
0.06102
|
0.00003531
|
|
1E6
|
1
|
61020
|
35.31
|
|
16.39
|
0.00001639
|
1
|
0.0005787
|
|
28320
|
0.02832
|
1728
|
1
|
|
|
|
m³
|
gal(UK)
|
gal(US)
|
ℓ
|
|
1
|
220.0
|
264.2
|
1000
|
|
0.004546
|
1
|
1.201
|
4.546
|
|
0.003785
|
0.8327
|
1
|
3.785
|
|
0.001
|
0.2200
|
0.2642
|
1
|
(注)1gal(US)=231in³, 1ft³=7.48 gal(US) |
|
|
(5) 질 량
|
|
(6) 밀 도
|
|
kg
|
t
|
lb
|
ton
|
sh tn
|
|
1
|
0.001
|
2.20462
|
0.0009842
|
0.0011023
|
|
1000
|
1
|
2204.62
|
0.9842
|
1.1023
|
|
0.45359
|
0.00045359
|
1
|
0.0004464
|
0.00055
|
|
1016.05
|
1.01605
|
2240
|
1
|
1.12
|
|
907.185
|
0.907185
|
2000
|
0.89286
|
1
|
(注) t:톤, ton: 영국톤(long ton), sh tn :미국톤(short ton) |
|
g/cm³
|
kg/m³
|
lb/in³
|
lb/ft³
|
|
1
|
1000
|
0.03613
|
62.43
|
|
0.001
|
1
|
0.00003613
|
0.06243
|
|
27.68
|
27680
|
1
|
1728
|
|
0.01602
|
16.02
|
0.0005787
|
1
|
(注) 1g/cm³= 1t/m³
|
|
|
(7) 힘
|
|
|
|
N
|
dyn
|
kgf
|
lbf
|
pdl
|
|
1
|
1E5
|
0.101972
|
0.2248
|
7.233
|
|
1E-5
|
1
|
1.01972E-6
|
2.248E-6
|
7.233E-5
|
|
9.80665
|
9.80665E5
|
1
|
2.205
|
70.93
|
|
4.44822
|
4.44822E5
|
0.4536
|
1
|
32.17
|
|
0.138255
|
1.38255E4
|
0.01410
|
0.03108
|
1
|
(注) 1 dyn=1E-5N, 1 pdl(파운달) = 1ft·lb/s² |
|
|
(8) 압 력
|
|
kgf/cm²
|
bar
|
Pa
|
atm
|
mH₂O
|
mHg
|
lbf/in²
|
|
1
|
0.980665
|
0.980665E5
|
0.9678
|
10.000
|
0.7356
|
14.22
|
|
1.0197
|
1
|
1E5
|
0.9869
|
10.197
|
0.7501
|
14.50
|
|
1.0197E-5
|
1E-5
|
1
|
0.9869E-5
|
1.0197E-4
|
7.501E-6
|
1.450E-4
|
|
1.0332
|
1.01325
|
1.01325E5
|
1
|
10.33
|
0.760
|
14.70
|
|
0.10000
|
0.09806
|
9.80665E3
|
0.09678
|
1
|
0.07355
|
1.422
|
|
1.3595
|
1.3332
|
1.3332E5
|
1.3158
|
13.60
|
1
|
19.34
|
|
0.07031
|
0.06895
|
6.895E3
|
0.06805
|
0.7031
|
0.05171
|
1
|
(注) 1 Pa = 1 N/m², 1 bar= 1E5 Pa, 1lbf/in²= 1 psi, 1 Pa = 7.5 E-3 torr
(注) 1ksi = 1000psi (英 ksi : kips per square inch )
|
|
|
(9) 응 력
|
|
(10) 속 도
|
|
kgf/cm²
|
kgf/mm²
|
Pa
|
N/mm²
|
lbf/ft²
|
|
1
|
1E-2
|
0.980665E5
|
0.0980665
|
2048
|
|
1E2
|
1
|
0.980665E7
|
9.80665
|
2.048E5
|
|
1.0197E-5
|
1.0197E-7
|
1
|
1E-6
|
0.02089
|
|
10.1972
|
0.101972
|
1E6
|
1
|
2.089E4
|
|
0.0004882
|
4.882E-6
|
47.86
|
4.788E-5
|
1
|
(注) 1 N/mm²= 1MPa |
|
|
m/s
|
km/h
|
kn(미터법)
|
ft/s
|
mile/h
|
|
1
|
3.6
|
1.944
|
3.281
|
2.237
|
|
0.2778
|
1
|
0.5400
|
0.9113
|
0.6214
|
|
0.5144
|
1.852
|
1
|
1.688
|
1.151
|
|
0.3048
|
1.097
|
0.5925
|
1
|
0.6818
|
|
0.4470
|
1.609
|
0.8690
|
1.467
|
1
|
(注) kn : 노트, 미터법 1 노트= 1852 m/h
|
|
|
(11) 점 도
|
|
|
cP
|
P
|
Pa·s
|
kgf·s/m²
|
lbf·s/in²
|
|
1
|
0.01
|
0.001
|
0.00010197
|
1.449E-7
|
|
100
|
1
|
0.1
|
0.0101973
|
1.449E-5
|
|
1000
|
10
|
1
|
0.101973
|
1.449E-4
|
|
9806.65
|
98.0665
|
9.80665
|
1
|
0.001422
|
|
6.9E6
|
6.9E4
|
6.9E3
|
7.03E2
|
1
|
(注) 1P= 1dyn·s/cm²= 1g/cm·s, 1Pa·s= 1N·s/m², 1cP=1mPa·s, 1lbf·s/in²= 1Reyn =6.9E6cP
|
|
|
(12) 동점도
|
|
(13) 각속도
|
|
cSt
|
St
|
m²/s
|
ft²/s
|
|
1
|
1E-2
|
1E-6
|
0.00001076
|
|
100
|
1
|
1E-4
|
0.001076
|
|
1E6
|
1E4
|
1
|
10.76
|
|
92900
|
929.0
|
0.09290
|
1
|
(注) 1 St = 1 cm²/s |
|
|
rpm
|
rad/s
|
|
1
|
0.1047
|
|
9.549
|
1
|
(注) 1 rad=57.296。, rpm= r/min
|
|
|
(14) 체적유량
|
|
ℓ/s
|
ℓ/min
|
m³/s
|
m³/min
|
m³/h
|
ft³/s
|
|
1
|
60
|
1E-3
|
0.06
|
3600
|
0.03532
|
|
0.01666
|
1
|
1.66666E-5
|
1E-3
|
6E-2
|
0.00059
|
|
1E3
|
6E4
|
1
|
60
|
3600
|
35.31
|
|
1.66666E1
|
1E3
|
1.66666E-2
|
1
|
60
|
0.5885
|
|
2.77777E-4
|
1.66666E1
|
2.77777E-4
|
1.66666E-2
|
1
|
0.00981
|
|
2.832E1
|
1.69833E3
|
2.832E-2
|
1.69833
|
101.9
|
1
|
|
|
|
(15) 일,에너지 및 열량
|
|
J
|
kgf·m
|
kW·h
|
kcal
|
ft·lbf
|
Btu
|
|
1
|
0.10197
|
2.778E-7
|
2.389E-4
|
0.7376
|
9.480E-4
|
|
9.807
|
1
|
2.724E-6
|
2.343E-3
|
7.233
|
9.297E-3
|
|
3.6E6
|
3.671E5
|
1
|
860.0
|
2.655E6
|
3413
|
|
4186
|
426.9
|
1.163E-3
|
1
|
3087
|
3.968
|
|
1.356
|
0.1383
|
3.766E-7
|
3.239E-4
|
1
|
1.285E-3
|
|
1055
|
107.6
|
2.930E-4
|
0.2520
|
778.0
|
1
|
(注) 1J=1W·s, 1kgf·m=9.80665J, 1 W·h = 3600 W·s, 1 cal = 4.18605 J |
|
|
(16) 일 률
|
|
kW
|
kgf·m/s
|
PS
|
HP
|
kcal/s
|
ft·lbf/s
|
Btu/s
|
|
1
|
101.97
|
1.3596
|
1.3405
|
0.2389
|
737.6
|
0.9480
|
|
9.807E-3
|
1
|
1.333E-2
|
1.315E-2
|
2.343E-3
|
7.233
|
9.297E-3
|
|
0.7355
|
75
|
1
|
0.9859
|
0.1757
|
542.5
|
0.6973
|
|
0.746
|
76.07
|
1.0143
|
1
|
0.1782
|
550.2
|
0.7072
|
|
4.186
|
426.9
|
5.691
|
5.611
|
1
|
3087
|
3.968
|
|
1.356E-3
|
0.1383
|
1.843E-3
|
1.817E-3
|
3.239E-4
|
1
|
1.285E-3
|
|
1.055
|
107.6
|
1.434
|
1.414
|
0.2520
|
778.0
|
1
|
(注) W : SI 단위, 1 W=1J/s, 1kgf·m/s=9.80665W, PS:佛마력, HP : 英마력
|
|
|
(17) 열전도율
|
|
(18) 열전도계수
|
|
kcal/m·h·℃
|
Btu/ft·h·℉
|
W/(m·K)
|
|
1
|
0.6720
|
1.163
|
|
1.488
|
1
|
1.731
|
|
0.8600
|
0.5779
|
1
|
(注) W/(m·K) : SI단위, 1 cal(it)=4.1868J
|
|
|
kcal/m²·h·℃
|
Btu/ft²·h·℉
|
J/m²·h·℃
|
W/(m²·K)
|
|
1
|
0.2048
|
4187
|
1.163
|
|
4.882
|
1
|
2.044E4
|
5.678
|
|
2.389E-4
|
4.893E-5
|
1
|
2.778E-4
|
|
0.8598
|
0.1761
|
3599
|
1
|
(注) W/(m²·K) :SI단위, 1 cal=4.18605 J |
|
|
(19) 비 열
|
|
|
|
J/(kg·K)
|
kcal/(kg·℃)
|
Btu/(lb·。R)
|
|
1
|
2.38889E-4
|
2.38889E-4
|
|
4.18605E3
|
1
|
1
|
(注) 1 cal = 4.18605 J |
|
|
|
|
|
