단위환산표

(1) 속도
초 속		분 속		시 속
m/s	ft/s	m/min	ft/min	里/hr	knot	mile/hr	km/hr
1	3.2808	60	196.85	0.9167	1.9426	2.2369	3.6
0.3048	1	18.288	60	0.2795	0.5921	0.6818	1.0973
0.016667	0.05468	1	3.2808	0.015278	0.03238	0.03728	0.06
0.00508	0.016667	0.3048	1	0.004668	0.009868	0.011364	0.018288
0.0909	3.578	65.45	214.7	1	2.1192	2.4403	3.9273
0.5148	1.6889	30.898	101.34	0.4719	1	1.1515	1.8532
0.447	1.4667	26.822	88	0.4098	0.8684	1	1.6093
0.27778	0.9113	16.667	54.68	0.25463	0.5396	0.6214	1
[주] 1knot＝1해리/hr＝6080 ft/hr
(2) 유속
l/s	ft3/s	m3/s	gal/min (미)	gal/min (영)	m3/min	ft3/hr	m3/hr
1	0.03531	0.001	15.85	13.198	0.06	127.13	3.6
28.32	1	0.02832	448.8	373.7	1.6992	3600	101.94
1000	35.31	1	15850	13198	60	127130	3600
0.06309	0.002228	0.046309	1	0.8327	0.003785	8.021	0.2271
0.07578	0.002676	0.047577	1.201	1	0.004546	9.632	0.2728
16.667	0.5885	0.016667	264.2	219.9	1	2119	60
0.007866	0.0002778	0.057866	0.12468	0.10381	0.000472	1	0.02832
0.2778	0.00981	0.0002778	4.403	3.666	0.016667	35.31	1
[주] 수량 1t/hr＝1m3/hr
(3) 힘 및 중량
mega dyn	Kg	Lb	poundal	중량(영) ton	중량(미) ton
1	1.0197	2.248	72.33	0.0010036	0.001124
0.9807	1	2.205	70.93	0.0009842	0.0011023
0.4448	0.4536	1	32.17	0.0004464	0.0005
0.013825	0.014098	0.03108	1	0.0413875	0.041554
996.4	1016.05	2240	72070	1	1.12
889.6	907.2	200	64348	0.8929	1
[주] 1mega dyn＝106dyn, 1Kg(중량 kg)＝1kg×g0, 1Lb(중량 1b)＝1lb×g0
1poundal＝1lb의 물체에 1ft/s2의 가속도를 준 힘
(4) 밀도
g/l＝kg/m3	lb/ft3	lb/(영)gal	lb/(미)gal	g/cm3＝ton/m3	(미)ton/yd3	(영)ton/yd3	lb/in3
1	0.06243	0.010022	0.008345	0.001	0.0008428	0.0007525	0.043613
16.018	1	0.16043	0.13358	0.016018	0.0135	0.012054	0.0005787
99.78	6.229	1	0.8327	0.09978	0.08409	0.07508	0.003605
119.83	7.481	1.201	1	0.11983	0.10099	0.09017	0.004329
1000	62.43	10.022	8.345	1	0.8428	0.7525	0.03613
1186.5	74.07	11.892	9.902	1.1865	1	0.8929	0.04287
1328.9	82.96	13.319	11.09	1.3289	1.12	1	0.04801
27680	1728	277.4	231	27.68	23.33	20.83	1
(5) 압력
atm	bar	kg/cm2	Lb/in2	Hg(0℃)		H2O(15℃)
				mm	in	m	ft
1	1.01325	1.03323	14.696	760	29.921	10.3416	33.929
0.98692	1	1.01972	14.5038	750.06	29.53	10.2063	33.485
0.96785	0.98067	1	14.2235	735.57	28.959	10.0091	32.838
0.068046	0.068948	0.070307	1	51.715	2.036	0.7037	2.3087
0.00131579	0.00133322	0.00135951	0.0193368	1	0.03937	0.0136073	0.044643
0.033421	0.033864	0.034542	0.49115	25.4	1	0.34563	1.13394
0.096782	0.098064	0.099997	1.42231	73.554	2.8958	1	3.2808
0.029499	0.02989	0.030479	0.43352	22.419	0.88265	0.3048	1
[주] 1bar＝106dyn/cm2, 1psia
(6) 비열
cal/gㆍ℃	kcal/kgㆍ℃	Btu/lbㆍ℉	Chu/lbㆍ℃	Joule/gㆍ℃
1	1	1	1	4.186
0.2389	0.2389	0.2389	0.2389	1
(7) 일, 에너지 및 열량
cm3ㆍatm	Joule	VAㆍs	ftㆍLb	calmean	mㆍkg	lㆍkg/cm2	B.t.u.mean
1	0.101325	0.101325	0.74733	0.024184	0.0103323	0.0010332	0.000095971
9.8692	1	1	0.73756	0.23868	0.101972	0.0101969	0.0009478
13.3809	1.35582	1.35582	1	0.32361	0.138255	0.0138251	0.00128418
41.349	4.1897	4.1897	3.0902	1	0.42723	0.042722	0.003971
96.784	9.8067	9.8067	7.233	2.34066	1	0.099997	0.0092885
967.87	98.069	98.069	72.332	23.4073	10.0003	1	0.092887
10419.8	1055.79	1055.79	778.71	251.998	107.661	10.7658	1
[주] • 1erg＝1dynㆍcm＝10-7Joule, 1Wattㆍs＝1Joule, 1kWㆍhr＝3.6×106AVㆍs, 1c.h.u.＝1.8B.t.u.
• 1eV(electron-volt)＝1.6020×10-12erg
(8) 동력
kW	Hpelecter	HP	PS	B.t.u./min	Kgㆍm/s	cal/s	ftㆍLb/s
1	1.34048	1.34102	1.35962	56.868	101.972	238.92	737.56
0.746	1	1.0004	1.01428	42.424	76.071	178.234	550.22
0.7457	0.9996	1	1.01387	42.406	76.04	178.163	550
0.7355	0.98592	0.98632	1	41.826	75	175.726	542.48
0.0175965	0.023588	0.023597	0.023925	1	1.79435	4.2042	12.9785
0.0098067	0.0131457	0.0131509	0.0133333	0.55769	1	2.34302	7.233
0.0041897	0.0056162	0.0056185	0.0056964	0.23826	0.42723	1	3.0902
0.00135582	0.00181745	0.00181818	0.0018434	0.077103	0.138255	0.32393	1
(9) 점성계수
kg/mㆍhr	centi poise	poise	kg/mㆍs	lb/ftㆍs	Kgㆍs/m2	Lbㆍs/ft2	Gㆍs/cm2
1	0.2778	0.002778	0.0002778	0.00018667
3.6	1	0.01	0.001	0.000672	0.00010197
360	100	1	0.1	0.0672	0.010197	0.0020886	0.0010197
3600	1000	10	1	1	0.10197	0.020886	0.010197
5357	1488.1	14.881	1.4881	6.5898	0.15175	0.031081	0.015175
35304	9806.65	98.0665	9.80665	32.174	1	0.20482	0.1
172368	47880	478.8	47.88	65.898	4.8824	1	0.48824
353039	98066.5	980.665	98.0665		10	2.0482	1
[주] 1poise＝1g/cmㆍs, Kg＝重量kg, Lb＝重量lb, G＝重量g
(10) 동점도, 온도전도도, 확산상수
cm2/s	m2/hr	ft2/hr	in2/s
1	0.36	3.875	0.155
2.778	1	10.764	0.4306
0.2581	0.0929	1	0.04
6.452	2.323	25	1
[주] 1stokes＝1cm2/s
(11) 전열계수
cal/cm2ㆍsㆍ℃	Btu/ft2ㆍhrㆍ℉	kcal/m2ㆍhrㆍ℃
1	7374	36000
0.00013562	1	4.882
0.00002778	0.2048	1
(12) 발열량
cal/g	kcal/kg	Chu/lb	Btu/lb
1	1	1	1.8
0.5555	0.5555	0.5555	1
(13) 열유량
cal/sㆍcm2	Watt/cm2	cal/hrㆍcm2	Btu/hrㆍft2	kcal/hrㆍm2
1	4.1858	3600	13272	36000
0.2391	1	860.6	3173	8606
0.0002778	0.0011625	1	3.687	10
0.00007535	0.0003152	0.2712	1	2.712
0.00002778	0.00011625	0.1	0.3687	1
(14) 열전도율
cal/sㆍcmㆍ℃	Joule/sㆍcmㆍ℃	Watt/cmㆍ℃	Btu/hrㆍftㆍ℉	kcal/hrㆍmㆍ℃
1	4.1858	4.1858	241.9	360
0.2389	1	1	57.79	86
0.004134	0.0173	0.0173	1	1.4881
0.002778	0.011625	0.011625	0.672	1