# Power unit conversion table

This table contains conversions between almost all power(heat flow rate) units. Some units of power(heat flow rate) are common and some are relatively rare. This is a good query tool. Power Converter

Name of unitSymbolDefinitionRelation to SI units
atmosphere-cubic centimetre per minuteatm ccm ≡ 1 atm × 1 cm 3/min= 1.688 75×10 −3 W
atmosphere-cubic centimetre per secondatm ccs ≡ 1 atm × 1 cm 3/s= 0.101 325 W
atmosphere-cubic footper houratm cfh ≡ 1 atm × 1 cu ft/h= 0.797 00124704 W
atmosphere-cubic foot per minuteatm cfm ≡ 1 atm × 1 cu ft/min= 47.820 07468224 W
atmosphere-cubic foot per secondatm cfs ≡ 1 atm × 1 cu ft/s= 2.869 2044809344×10 3 W
BTU(International Table) per hourBTU IT/h≡ 1 BTU IT/h0.293 071 W
BTU (International Table) per minuteBTU IT/min≡ 1 BTU IT/min17.584 264 W
BTU (International Table) per secondBTU IT/s≡ 1 BTU IT/s= 1.055 05585262×10 3 W
calorie(International Table) per secondcal IT/s≡ 1 cal IT/s= 4.1868 W
erg per seconderg/s≡ 1 erg/s= 10 −7 W
foot- pound-forceper hourft·lbf/h≡ 1 ft lbf/h3.766 161×10 −4 W
foot-pound-force per minuteft·lbf/min≡ 1 ft lbf/min= 2.259 696580552334×10 −2 W
foot-pound-force per secondft·lbf/s≡ 1 ft lbf/s= 1.355 8179483314004 W
horsepower(boiler)hp≈ 34.5 lb/h × 970.3 BTU IT/lb9 809.5 W
horsepower (European electrical)hp≡ 75 kp·m/s= 736 W[ citation needed]
horsepower (electrical)hp≡ 746 W= 746 W
horsepower (mechanical)hp≡ 550 ft·lbf/s = 745.699 87158227022 W
horsepower (metric)hp or PS≡ 75 m·kgf/s= 735.498 75 W
litre-atmosphere per minuteL·atm/min≡ 1 atm × 1 L/min= 1.688 75 W
litre-atmosphere per secondL·atm/s≡ 1 atm × 1 L/s= 101.325 W
luseclusec≡ 1 L·µmHg/s 1.333 ×10 −4 W
ponceletp≡ 100 m·kgf/s= 980.665 W
square foot equivalent direct radiationsq ft EDR≡ 240 BTU IT/h70.337 057 W
tonof air conditioning 2000 lbof ice melted / 24 h3504 W
ton of refrigeration (imperial) 2240 lb× ice IT/ 24 h: ice IT= 144 °F × 2326 J/kg·°F3.938 875×10 3 W
ton of refrigeration(IT) 2000 lb× ice IT/ 24 h: ice IT= 144 °F × 2326 J/kg·°F3.516 853×10 3 W
watt(SI unit)WThe power which in one second of time gives rise to one joule of energy. = 1 W= 1 J/s = 1 N·m/s = 1 kg·m 2/s 3