Prepočítavacie tabuľky

kg	lb pound	oz ounce	ton (UK) long ton	sh tn short ton
1	2,204 6	35,274	0,984 21 * 10^-3	1,102 3 * 10^-3
0,453 59	1	16	0,446 43 *10^-3	0,5 * 10^-3
28,350 * 10^-3	62,5 * 10^-3	1	27,902 * 10^-6	31,25 * 10^-6
1,016 1 * 10³	2,24 * 10³	25,84 * 10³	1	1,12
907,19	2 * 10³	32 * 10³	0,892 86	1

Objem

m³	in³	ft³	gallon UK (Imp.)	US gallon
1	61,024 * 10³	35,315	219,97	267,17
16,387 * 10^-6	1	0,578 70 * 10-3	3,604 6 * 10-3	4,329 0 * 10^-3
28,317 * 10^-3	1,728 * 10³	1	6,228 8	7,480 5
4,546 1 * 10^-3	277,42	0,160 54	1	1,201 0
3,785 4 * 10 ^-3	231	0,133 68	0,832 68	1

1 barrel = 0,159 m³

Plocha

1 ha (hectar) = 10 000 m²= 2,471 acres

1 acre = 43,56 * 10³ ft²= 4046,9 m²

Dĺzka

meter m	inch in	foot ft	yard yd	mile	nauctial mile
1	39,370	3,280 8	1,093 6	0,621 37 * 10-3	0,539 96 * 10-3
25,4 * 10^-3	1	83,333 * 10^-3	27,779 * 10^-3	15,783 * 10-6	13,715 * 10-6
0,304 8	12	1	0,333 33	0,189 39 * 10-3	0,164 58 * 10-3
0,914 4	36	3	1	0,568 18 * 10-3	0,493 74 * 10-3
1,609 3 * 10³	63,36 * 10³	5,28 * 10³	1,76 * 10³	1	0,868 98
1,852 * 10³	72,913 * 10³	6,076 1 * 10³	2,025 4 * 10³	1,150 8	1

Energia

J Joule	kWh kilowatthour	kpm kilopond- meter	kcal kilocalorie	hkh horsepower- hour	ft * lbf foot pound-force	Btu British thermal unit
1	0,277 78 * 10^-6	0,101 97	0,238 85 * 10^-3	0,377 67 * 10^-6	0,737 56	0,947 82 * 10^-3
3,6 * 10⁶	1	0,367 * 10⁶	859,85	1,359 6	2,655 23 * 10⁶	3,412 1 * 10³
9,806 6	2,724 1 * 10^-6	1	2,342 3 * 10^-3	3,703 7 * 10^-6	7,233	9,294 9 * 10^-3
4,186 8 * 10³	1,163 * 10^-3	426,94	1	1,5812 * 10^-3	3,088 * 10³	3,968 3
2,647 8 * 10⁶	0,735 50	0,27 * 10⁶	632,42	1	1,952 9 * 10⁶	2,509 6 * 10³
1,355 8	0,376 62 * 10^-6	0,138 26	0,323 83 * 10^-3	0,512 06 * 10^-6	1	1,285 1 * 10^-3
1,055 1 * 10³	0,293 07 * 10^-3	107,59	0,252 00	0,398 47 * 10^-3	778,17	1

1 Nm = 1 Ws = 1J (Power)
1 hk (metric) = 75 kpm/s = 736 W
1 hp (British) = 550 ft * lbf/s = 736 W

Objem a hmotnost plynov

Gas	Mass (weight) kg	Volume
Gas	Mass (weight) kg	Gas m³	Liquid l
Oxygen	1,35 1,14 1	1 0,84 0,74	1,19 1 0,88
Nitrogen	1,19 0,81 1	1 0,68 0,84	1,47 1 1,24
Argon	1,69 1,39 1	1 0,82 0,59	1,22 1 0,72
Hydrogen	0,085 0,071 1	1 0,83 11,7	1,20 1 14,1
Carbon dioxide	1,87 1,56 1	1 0,83 0,53	1,20¹ 1¹ 0,64¹

(1) Sublimation point

	Oxygen kg	Nitrogen kg	Argon kg	m³ (1,012 bar, 15°C)
m³ (760 torr, 15°C)	1,3543	1,1852	1,6908	1
m³ (1 bar, 15°C)	1,3366	1,1697	1,6687	0,9870
m³ (735,5 torr, 15°C)	1,3106	1,1469	1,6362	0,9677
m³ (760 torr, 0°C)	1,4287	1,2503	1,7836	1,0549
m³ (1 bar, 0°C)	1,4100	1,2339	1,7604	1,0412
m³ (X-torr, Y°C)	X • 0,5132 (Y+273)	X • 0,4492 (Y+273)	X • 0,6408 (Y+273)
100 Stand.Cubic Feet (NTP, 70°F, 1 atm)	3,7567	3,2876	4,6901	2,7739

1 bar = 100 kPa = 750,06 torr
1 atm (physical atmosphere) = 760 mm Hg = 760 torr = 1,0132 bar
1 at (technical atmosphere) = 1 kp/cm2 = 735,5 torr = 0,9807 bar

Production quantities

Gas	Cubic meters/h (gas at 15°C and 1,013 bar) m³/h	Kilograms/ hour kg/h	Metric tons/ day t/24 h	Cubic feet/hour 70°F 1 atm ft³/h
Oxygen	27,74 735 1000 3060	37,7 1000 1360 4166	0,905 24 32,6 100	1000 26500 36000 110300
Nitrogen	27,74 840 1000 3500	33,0 1000 1190 4166	0,792 24 28,6 100	1000 30300 36000 126200
Argon	27,74 59,2 100 247	46,9 100 169 417	1,125 2,4 4,1 10	1000 2130 3600 8890
Hydrogen	27,74 49 100 117,4	2,36 4,17 8,52 10	0,057 0,1 0,20 0,24	1000 1766 3600 4235
Carbon dioxide	27,74 534 1000 2219	51,9 1000 1871 4152	1,25 24 45,1 100	1000 19268 36049 80000

1 Million cubic feet/month = 38,53 m³/h (720 h/month)

Pressure

bar	kPa	kp/cm² (at)	mm Hg	lbf/in² (psi)	atm
1,013	101,3	1,033	760	14,7	1
1	100	1,020	750	14,5	0,987
0,98	98	1	736	14,2	0,968
0,069	6,9	0,070	51,7	1	0,068
1,333	133,3	1,360	1000	19,33	1,316

1 mm water = 9,81 Pa
1 inch Hg = 3386,4 Pa
1 torr = 1/760 atm = 1 mm Hg at 0°C
1 micron = 10^-6 mHg

Temperature

Fahrenheit to Celsius	°C = 5/9 • (°F - 32)
Celsius to Fahrenheit	°F = (5/9 • °C) + 32
Celsius to Kelvin	K = °C + 273