Délkové převody
| jednotky SI |
anglo-americké jedn. |
|---|
| 1 cm |
= 0,3937 in (inch) |
| 1 m |
= 3,2808 ft |
| = 0,1,0936 yards |
| 1 km |
= 0,6214 mile (statute) |
| = 0,5396 Seemeilen |
| anglo-americké jedn. |
jednotky SI |
|---|
| 1 in |
= 2,5399 cm |
| 1 ft= 12 in |
= 0,3048 m |
| 1 yard= 3 ft |
= 0,9144 m |
| 1 mile (statute) |
= 1,60934 km |
| 1 Seemile |
= 1,85318 km |
Plocha
| jednotky SI |
anglo-americké jedn. |
|---|
| 1 cm2 |
= 0,1550 sq in |
| 1 m2 |
= 10,7639 sq ft |
| = 1,1960 sq yards |
| 1 ha |
= 2,471 acres |
| = 10 000 m2 |
| = 100 a (ar) |
| 1 a |
= 100 m2= 0,0247 acre |
| anglo-americké jedn. |
jednotky SI |
|---|
| 1 sq in |
= 6,4516 cm2 |
| = 0,000645 m2 |
| 1 sq ft |
= 0,0929 m2 |
| 1 sq yard= 9 sq ft |
= 0,836 m2 |
| 1 sq mile |
= 2,590 km2 |
| 1 acre |
= 0,4047 ha |
| = 40,47 a |
Objem
| jednotky SI |
anglo-americké jedn. |
|---|
| 1 cm3 |
= 0,06102 cu in |
| 1 dm3= 1 l |
= 61,024 cu in |
| = 0,03531 cu ft |
| = 0,21998 gal (angl.) |
| = 0,26428 gal (am.) |
| 1 m3 |
= 35,315 cu ft |
| = 1,308 cu yards |
| = 6,299 Petr. barrels |
| 1 hl |
= 0,3438 quarter (angl.) |
| = 0,413 quarter (am.) |
| 1 m3/kg |
= 16,0185 cu ft/lb |
| 1 Reg. - T. |
= 100 cu ft |
| = 2,832 m3 |
| 1 mn3 |
= 37,97 cu ft
(60°F, 30 in moist) |
| 1 mn3 |
= 37,22 cu ft
(60°F, 30 in dry) |
| anglo-americké jedn. |
jednotky SI |
|---|
| 1 cu in |
= 16,3870 cm3 |
| = 0,01639 dm3 |
| 1 cu ft |
= 28, 317 dm3 |
| 1 cu yard |
= 0,7646 m3 |
| 1 gal (angl.) |
= 4,546 l |
| 1 gal (am.) |
= 3,785 l |
| = 4 quarts |
| 1 quarter (angl.) |
= 64 gal |
| = 290,9 l |
| 1 Petr. barrel |
= 0,15876 m3 |
| = 42 gal |
| 1 quarter (am.) |
= 2 pints |
| = 0,946 dm3 |
1 bushel(am.)
1 bushel (angl.) |
= 35,242 l |
| = 36,37 l = 8 gal |
| 1 cu ft/lb |
= 0,06243 m3/kg |
1 cu ft
(60°F, 30 in moist) |
= 0,2635 mn3 |
1 cu ft
(60°F, 30 in dry) |
= 0,02687 mn3 |
Energie
| jednotky SI |
anglo-americké jedn. |
|---|
| 1 J |
= 0,948·10-3 BTU |
| 1 kJ |
= 0,948 BTU |
| 1 kWh |
= 3414,5 BTU |
| 1 MWh |
= 34,1297 therms |
| anglo-americké jedn. |
jednotky SI |
|---|
| 1 BTU |
= 1,055 kJ |
| 1 ft lb (force) |
= 1,356 J |
| 1 HPh |
= 2685 kJ |
| 1 therm (105 BTU) |
= 0,1055 GJ |
| = 29,288 kWh |
Výkon
| jednotky SI |
anglo-americké jedn. |
|---|
| 1 W (Watt) |
= 3,412 BTU/h |
| 1 kW |
= 3412 BTU/h |
| anglo-americké jedn. |
jednotky SI |
|---|
| 1 BTU/h |
= 0,2931 W |
| 1 HP |
= 0,7457 kW |
Entalpie a Entropie
| jednotky SI |
anglo-americké jedn. |
|---|
| 1 kJ/m3 |
= 0,02684 BTU/ft3 |
| 1 kJ/kg |
= 0,43021 BTU/lb |
| 1 kJ/K |
= 0,5266 BTU/F |
| anglo-americké jedn. |
jednotky SI |
|---|
| 1BTU/ft3 |
= 37,26 kJ/m3 |
| 1 BTU/lb |
= 2,3244 kJ/kg |
| 1 BTU/F |
= 1,899 kJ/K |
Měrná tepelná kapacita
| jednotky SI |
anglo-americké jedn. |
|---|
| 1 kJ/kgK |
= 0,2388 BTU/lb F |
| 1 kJ/m3K |
= 0,0149 BTU/ft3 F |
| anglo-americké jedn. |
jednotky SI |
|---|
| 1 BTU/lb F |
= 4,1868 kJ/kgK |
| 1 BTU/ft3 F |
= 67,070 kJ/m3K |
Teplo
| jednotky SI |
anglo-americké jedn. |
|---|
| 1 kJ/m2 |
= 0,0881 BTU/ft2 |
| 1 W/m2 |
= 0,3170 BTU/h ft2 |
| 1 W/m2K |
= 0,1761 BTU/h ft2 F |
| 1 W/mK |
= 0,578 BTU/h ft F |
| = 6,9348 BTU·in/h ft2 F |
| 1 m2K/W |
= 5,6786 h ft2 F/BUT |
| 1 mK/W |
= 1,7296 h ft F/BTU |
| = 0,1442 h ft2 F/BTU in |
| anglo-americké jedn. |
jednotky SI |
|---|
| 1 BTU/ft2 |
= 11,357 kJ/m2 |
| 1 BTU/h ft2 |
= 3,155 W/m2 |
| 1 BTU/h ft2 F |
= 5,678 W/m2K |
| 1 BTU/h ft F |
= 1,7296 W/mK |
| 1 BTU·in/h ft2 F |
= 0,1442 W/mK |
| 1 h ft2 F/BTU |
= 0,1761 m2K/W |
| 1 h ft F/BTU |
= 0,5782 mK/W |
| 1 h ft2 F/BTU in |
= 6,934 mK/W |
Fahrenheit teplotní konverzní rovnice
| Konverze od |
k |
Rovnice |
|---|
| Stupeň Fahrenheita |
Stupeň Celsia |
° C = (° F - 32) / 1.8 |
| Stupeň Celsia |
Stupeň Fahrenheita |
° F = ° C x 1.8 + 32 |
| Stupeň Fahrenheita |
kelvin |
K = (° F - 32) / 1.8 + 273.15 |
| kelvin |
Stupeň Fahrenheita |
° F = (K - 273.15) x 1.8 + 32 |
Chlazení
| jednotky SI |
anglo-americké jedn. |
|---|
| 1 kW |
= 0,2843 tons of refrigeration |
| anglo-americké jedn. |
jednotky SI |
|---|
| 1 ton of refrigeration |
= 3,517 kW |
Vytápění
| jednotky SI |
anglo-americké jedn. |
|---|
| 1 kW |
= 0,1019 HP (boiler) |
| 1 kW |
= 14,22 EDR (steam) |
| = 22,74 EDR (water) |
| = 3412 BTU/h |
| anglo-americké jedn. |
jednotky SI |
|---|
| 1 HP (boiler) |
= 9,809 kW |
| = (33 475 BTU) |
1 EDR
(equivalent direkt radiation)
steam water |
= 70,34 W |
| = 43,97 W |
Hmotnost
| jednotky SI |
anglo-americké jedn. |
|---|
| 1g |
= 0,03527 oz (av)2) |
| = 15,432 grain |
| 1 kg |
= 2,2046 lb (av) |
| = 0,0787 quarter (angl.) |
| 1 t |
= 0,984 long tons |
| = 1,102 short tons |
| 1 kg/m3 |
= 0,06243 lb/cu ft |
| 1 g/kg |
= 7,0 grain/lb |
| 1 g/m3 |
= 0,437 grain/cu ft |
| 1 g/m2 |
= 2,855 ton/sq mile |
| 1 m3/hm2 |
= 0,0547 cfm/sq ft |
| anglo-americké jedn. |
jednotky SI |
|---|
| 1 oz (av) |
= 28,35 g |
| 1 grain |
= 0,0648 g |
| 1 lb |
= 16 oz |
| = 0,4536 kg |
| = 7000 grains |
| 1 long ton (angl.) |
= 1016 kg |
| 1 quarter (angl.) |
= 28 lb = 12,701 kg |
| 1 short ton (am.) |
= 2000 lb = 907,2 kg |
| 1 lb/cu ft |
= 16,0185 kg/m3 |
| 1 grain/lb |
= 0,1426 g/kg |
| 1 grain/cu ft |
= 2,2884 g/m3 |
| 1 ton/sq mile |
= 0,3503 g/m2 |
| 1cfm/sq ft |
= 18,3 m3/hm2 |
Rychlost, hmotnost a objem
| jednotky SI |
anglo-americké jedn. |
|---|
| 1 m/s |
= 196,85 ft/min |
| 1 km/h |
= 0,6214 mph |
| 1 Kn |
= 1,852 km/h |
| = 0,514 m/s |
| 1 m3/h |
= 4,403 gal/min (am.) |
| = 3,666 gal/min (angl.) |
| = 0,5886 cu ft/min |
| 1 kg/h |
= 0,0367 lb/min |
| anglo-americké jedn. |
jednotky SI |
|---|
| 1 ft/min |
= 0,508 cm/s |
| 1 mph |
= 1,60934 km/h |
| 1 km/h |
= 0,54 Kn |
| = 0,278 m/s |
| 1 gal/min (am.) |
= 0,227 m3/h |
| 1 gal/min (angl.) |
= 0,273 m3/h |
| 1 cu ft/min |
= 28,317 l/min |
| = 1,700 m3/h |
| 1 lb/min |
= 27,216 kg/h |
Tlak a síla
| jednotky SI |
anglo-americké jedn. |
|---|
| 1 N (Newton) |
= 0,2248 lb (f) |
| 1 Pa (Pascal) (N/m2) |
= 0,0209 lb/ft2 |
| 1 bar |
= 14,504 psi |
| = 29,530 in Hg |
| = 0,987 atm |
| 1 mbar |
= 0,0145 psi |
| = 0,0295 in Hg |
| = 0,4019 in H2O |
| = 2,089 lb/ft2 |
| 1 mm H2O |
= 0,0394 in H2O |
| 1 atm |
= 14,696 psi |
| 1 mm H2O/m |
= 1,1993 in H2O/100 ft |
| 1 N/m2·m |
= 0,1223 in H2O/100 ft |
| 1 mbar/m |
= 0,442 psi/100 ft |
| anglo-americké jedn. |
jednotky SI |
|---|
| 1 lb (force) |
= 4,448 N |
| 1 lb/in2 (psi) |
= 6895 N/m2 |
| = 68,95 mbar |
| = 703,1 mm H2O |
| 1 lb/ft2 |
= 47,88 N/m2 |
| = 0,4788 mbar |
| = 0,0470 mm H2O |
| 1 in H2O |
= 249,08 N/m2 |
| = 2,4908 mbar |
| = 25,4 mm H2O |
| 1 in Hg |
= 33,864 mbar |
| 1 ft H2O |
= 29,89 mbar |
| 1 atm |
= 1,013 bar |
| 1 ft H2O/100 ft |
= 98,10 N/m2·m |
| 1 in H2O/100 ft |
= 8,176 N/m2·m |
| 1 psi/100 ft |
= 2,262 mbar/m |
