|
■ 단위 환산표 (공학용)
(1) 길 이
|
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 |
(2) 면 적
|
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
|
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 |
(4) 두 량(斗量)
|
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
|
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)
(6) 밀 도
|
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
|
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
(10) 속 도
|
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) 동 점 도
|
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
(13) 각 속 도
|
rpm |
rad/s |
|
1 |
0.1047 |
|
9.549 |
1 |
(注) 1 rad=57.296。, rpm= r/min
(14) 제적유량
|
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) 일률
|
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
|
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
(18) 열전도계수
|
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 |
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