(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 |
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(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) |
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(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 |
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(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 |
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(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 ) |
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(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 |
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(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 |
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(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 | | (注) 1 rad=57.296。, rpm= r/min |
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(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 |
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(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 |
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(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 |
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(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 |
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(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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